Relevant bibliographies by topics / Aspen Plus Simulation

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Academic literature on the topic 'Aspen Plus Simulation'

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Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Aspen Plus Simulation"

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Tamzysi, Cholila, Muflih Arisa Adnan, Fadilla Noor Rahma, and Arif Hidayat. "Exergy Analysis of Microalgae Thermochemical Conversion using Aspen Plus Simulation." Reaktor 20, no. 4 (December 31, 2020): 166–73. http://dx.doi.org/10.14710/reaktor.20.4.166-173.

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Microalgae is known as the future bioenergy resources due to its unlimited potential and availability. One of the numerous paths to acquire an energy source is gasification, which produce syngas and methane as a hydrocarbon fuel or feedstock product. To set up an efficient gasification plant, several essential information is needed including the effect of oxidizing agent and steam to carbon (S/C) ratio to energy efficiency on certain biomass properties. This paper aims to study the highest exergy possibility on microalgae gasification process by examining the effect of steam and air flowrate independently via ASPEN Plus simulation. The result was validated with experimental data to verify the simulation reliability. It was found that the thermodynamic based simulation is suitable to predict the reactor behavior and acquire an optimum operating condition.Keywords: microalgae; gasification; exergy; simulation
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Mikhin, A. A., and V. V. Sergeev. "Simulation of condensation unit in ASPEN PLUS." Power engineering: research, equipment, technology 21, no. 6 (April 21, 2020): 84–92. http://dx.doi.org/10.30724/1998-9903-2019-21-6-84-92.

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The article discusses the scheme of deep utilization of the heat of flue gases. It has been established that in boiler units operating on natural gas, the only way to significantly improve the use of fuel is to deeply cool the combustion products to a temperature at which it is possible to condense the maximum possible portion of the fumes contained in the gases. To analyze the main energy indicators of the condensing unit and optimize its operating modes, a priority scheme was simulated in Aspen Plus. In this scheme, there are tees, heat exchangers and a reactor (boiler furnace). The configuration of tees (mixers) is carried out by setting the costs or fractions of two flows entering or leaving the element. The boiler furnace is modeled as a Gibbs reactor, which calculates the chemical and thermodynamic equilibrium by minimizing the difference in the Gibbs energy of the products and the starting materials. Using the Aspen Plus computer program, the condensation unit circuit was simulated at the PTVM-100 boiler unit with the specification of the optimal operating parameters of material flows and heat exchange equipment. The calculations show that when using a condensing boiler, a triple energy effect is achieved: the physical heat of the flue gases is used; the latent heat of vaporization released during condensation is used; the condensate released from the flue gases is used.
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Lv, Han, Wei Ting Jiang, and Qun Zhi Zhu. "Organic Rankine Cycle Simulation Based on Aspen Plus." Advanced Materials Research 1070-1072 (December 2014): 1808–11. http://dx.doi.org/10.4028/www.scientific.net/amr.1070-1072.1808.

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Organic Rankine cycle is an effective way to recover low-grade heat energy. In order to improve system performance, for low-temperature waste heat of 120°C and R245fa,R600a,R227ea organic working fluid, using Aspen Plus software conducted simulation by changing the evaporation temperature. Results from these analyses show that decreasing the evaporation temperature, increasing thermal and exergy efficiencies, evaporating pressure, at the same time reduce steam consumption rate.
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Hauck, Maximilian, Stephan Herrmann, and Hartmut Spliethoff. "Simulation of a reversible SOFC with Aspen Plus." International Journal of Hydrogen Energy 42, no. 15 (April 2017): 10329–40. http://dx.doi.org/10.1016/j.ijhydene.2017.01.189.

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Al Amoodi, Nahla, Pravin Kannan, Ahmed Al Shoaibi, and C. Srinivasakannan. "ASPEN PLUS SIMULATION OF POLYETHYLENE GASIFICATION UNDER EQUILIBRIUM CONDITIONS." Chemical Engineering Communications 200, no. 7 (July 2013): 977–92. http://dx.doi.org/10.1080/00986445.2012.715108.

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Sotudeh-Gharebaagh, R., R. Legros, J. Chaouki, and J. Paris. "Simulation of circulating fluidized bed reactors using ASPEN PLUS." Fuel 77, no. 4 (March 1998): 327–37. http://dx.doi.org/10.1016/s0016-2361(97)00211-1.

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Hao, X., M. E. Djatmiko, Y. Y. Xu, Y. I. Wang, J. Chang, and Y. W. Li. "Simulation Analysis of a GTL Process Using Aspen Plus." Chemical Engineering & Technology 31, no. 2 (February 2008): 188–96. http://dx.doi.org/10.1002/ceat.200700336.

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Darabi, Mohsen, Mohammad Mohammadiun, Hamid Mohammadiun, Saeed Mortazavi, and Mostafa Montazeri. "Simulation and optimization integrated gasification combined cycle by used aspen hysys and aspen plus." International Journal of Scientific World 3, no. 1 (May 7, 2015): 178. http://dx.doi.org/10.14419/ijsw.v3i1.4583.

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<p>Electricity is an indispensable amenity in present society. Among all those energy resources, coal is readily available all over the world and has risen only moderately in price compared with other fuel sources. As a result, coal-fired power plant remains to be a fundamental element of the world's energy supply. IGCC, abbreviation of Integrated Gasification Combined Cycle, is one of the primary designs for the power-generation market from coal-gasification. This work presents a in the proposed process, diluted hydrogen is combusted in a gas turbine. Heat integration is central to the design. Thus far, the SGR process and the HGD unit are not commercially available. To establish a benchmark. Some thermodynamic inefficiencies were found to shift from the gas turbine to the steam cycle and redox system, while the net efficiency remained almost the same. A process simulation was undertaken, using Aspen Plus and the engineering equation solver (EES).The The model has been developed using Aspen Hysys® and Aspen Plus®. Parts of it have been developed in Matlab, which is mainly used for artificial neural network (ANN) training and parameters estimation. Predicted results of clean gas composition and generated power present a good agreement with industrial data. This study is aimed at obtaining a support tool for optimal solutions assessment of different gasification plant configurations, under different input data sets.</p>
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Lestinsky, Pavel, and Aloy Palit. "Wood Pyrolysis Using Aspen Plus Simulation and Industrially Applicable Model." GeoScience Engineering 62, no. 1 (March 1, 2016): 11–16. http://dx.doi.org/10.1515/gse-2016-0003.

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Abstract Over the past decades, a great deal of experimental work has been carried out on the development of pyrolysis processes for wood and waste materials. Pyrolysis is an important phenomenon in thermal treatment of wood, therefore, the successful modelling of pyrolysis to predict the rate of volatile evolution is also of great importance. Pyrolysis experiments of waste spruce sawdust were carried out. During the experiment, gaseous products were analysed to determine a change in the gas composition with increasing temperature. Furthermore, the model of pyrolysis was created using Aspen Plus software. Aspects of pyrolysis are discussed with a description of how various temperatures affect the overall reaction rate and the yield of volatile components. The pyrolysis Aspen plus model was compared with the experimental data. It was discovered that the Aspen Plus model, being used by several authors, is not good enough for pyrolysis process description, but it can be used for gasification modelling.
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Sajjad, Mojibul, and Mohammad G. Rasul. "Simulation and Optimization of Solar Desalination Plant Using Aspen Plus Simulation Software." Procedia Engineering 105 (2015): 739–50. http://dx.doi.org/10.1016/j.proeng.2015.05.065.

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Dissertations / Theses on the topic "Aspen Plus Simulation"

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Mapamba, Liberty Sheunesu. "Simulation of the copper–chlorine thermochemical cycle / Mapamba, L.S." Thesis, North-West University, 2011. http://hdl.handle.net/10394/7052.

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The global fossil reserves are dwindling and there is need to find alternative sources of energy. With global warming in mind, some of the most commonly considered suitable alternatives include solar, wind, nuclear, geothermal and hydro energy. A common challenge with use of most alternative energy sources is ensuring continuity of supply, which necessitates the use of energy storage. Hydrogen has properties that make it attractive as an energy carrier. To efficiently store energy from alternative sources in hydrogen, several methods of hydrogen production are under study. Several literature sources show thermochemical cycles as having high potential but requiring further development. Using literature sources, an initial screening of thermochemical cycles was done to select a candidate thermochemical cycle. The copper–chlorine thermochemical cycle was selected due to its relatively low peak operating temperature, which makes it flexible enough to be connected to different energy sources. Once the copper–chlorine cycle was identified, the three main copper–chlorine cycles were simulated in Aspen Plus to examine which is the best configuration. Using experimental data from literature and calculating optimal conditions, flowsheets were developed and simulated in Aspen Plus. The simulation results were then used to determine the configuration with the most favourable energy requirements, cycle efficiency, capital requirements and product cost. Simulation results show that the overall energy requirements increase as the number of steps decrease from five–steps to three–steps. Efficiencies calculated from simulation results show that the four and five–step cycles perform closely with 39% and 42%, respectively. The three–step cycle has a much lower efficiency, even though the theoretical calculations imply that the efficiency should also be close to that of the four and five–step cycles. The five–step reaction cycle has the highest capital requirements at US$370 million due to more equipment and the three–step cycle has the lowest requirement at US$ 275 million. Payback analysis and net present value analysis indicate that the hydrogen costs are highest for the three–step cycle at between US$3.53 per kg for a 5–10yr payback analysis and the five–step cycle US$2.98 per kg for the same payback period.
Thesis (M.Ing. (Chemical Engineering))--North-West University, Potchefstroom Campus, 2012.
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Schmidt, David Daniel. "Simulating aerosol formation and effects in NOx absorption in oxy-fired boiler gas processing units using Aspen Plus." Thesis, Kansas State University, 2013. http://hdl.handle.net/2097/15304.

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Master of Science
Department of Chemical Engineering
Larry Erickson
Oxy-fired boilers are receiving increasing focus as a potential response to reduced boiler emissions limits and greenhouse gas legislation. Among the challenges in cleaning boiler gas for sequestration is attaining the necessary purity of the CO[subscript]2. A key component in the oxy-fired cleaning path is high purity SO[subscript]x and NO[subscript]x removal, often through absorption using the lead-chamber or similar process. Aerosol formation has been found to be a source of product contamination in many flue gas absorption processes. A number of authors presented simulation methods to determine the formation of aerosols in gas absorption. But these methods are numerically challenging and not suitable for day-to-day analysis of live processes in the field. The goal of this study is to devise a simple and practical method to predict the potential for and effect of aerosol formation in gas absorption using information from Aspen Plus, a commonly used process simulation tool. The NO[subscript]x absorber in an oxy-fired boiler CO[subscript]2 purification system is used as a basis for this investigation. A comprehensive review of available data suitable for simulating NO[subscript]x absorption in an oxy-fired boiler slipstream is presented. Reaction rates for eight reactions in both liquid and vapor phases are covered. These are entered into an Aspen Plus simulation using a RadFrac block for both rate-based and equilibrium reactions. A detailed description of the simulation format is given. The resulting simulation was compared to a previously published simulation and process data with good agreement. An overall description of the aerosol formation mechanism is presented, along with an estimate of expected aerosol nuclei reaching the NO[subscript]x absorption process. A method to estimate aerosol quantities produced based on inlet gas nuclei concentration and available condensable water vapor is presented. To estimate aerosol composition and emissions, an exit gas slipstream is used to equilibrate with a pure water aerosol using an Aspen Plus Equilibrium Reactor block. Changing the composition of the initial aerosol feed liquid suggests that the location of aerosol formation may influence the final composition and emissions.
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Batista, Fabio Rodolfo Miguel 1978. "Simulação computacional aplicada à melhoria do processo de purificação de bioetanol = Computational simulation applied to the improvement of the bioethanol purification process." [s.n.], 2012. http://repositorio.unicamp.br/jspui/handle/REPOSIP/254191.

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Orientador: Antonio José de Almeida Meirelles
Texto em português e inglês
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia de Alimentos
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Resumo: A diminuição gradativa das reservas de combustíveis fósseis e a crescente preocupação com os efeitos do aquecimento global vêm impulsionando cada vez mais as pesquisas por fontes de energia limpa. Dentre essas energias, o etanol de cana-de-açúcar, utilizado no Brasil desde a criação do Programa Nacional do Álcool (PROALCOOL) em 1975, vem se consolidando cada vez mais e sofrendo modificações contínuas no seu processo produtivo. Essas modificações se devem,entre outros aspectos, ao surgimento do conceito de biorrefinaria, que visa um aproveitamento integral da biomassa da cana para produção de energia, e ao rápido e contínuo crescimento da indústria alcoolquímica brasileira, utilizando o etanol como matéria prima para a produção de diversos outros produtos,aumentando a demanda por etanol de melhor qualidade e impulsionando pesquisas no melhoramento do processo produtivo atual. Tendo em conta esse atual cenário, essa tese tem por objetivo estudar o processo de destilação alcoólica industrial, por simulação computacional, analisando a influência dos diversos contaminantes do fermentado de cana no funcionamento das colunas de destilação, investigando a possibilidade do desenvolvimento de uma nova planta industrial para a produção de álcool carburante e álcool neutro, um tipo especial de álcool de alto valor agregado com baixo teor de contaminantes utilizado na indústria de química fina e de bebidas. Para o cumprimento desse objetivo, esta tese está dividida em 6 capítulos: o Capítulo 1 apresenta uma revisão bibliográfica da produção científica associada à produção de álcool combustível, apontando as principais lacunas inerentes a esse tema; o Capítulo 2 discute a produção industrial de cachaça por sistema contínuo apresentando um cuidadoso estudo do equilíbrio de fase dos principais componentes do fermentado de cana de açúcar e analisando a influência dos mesmos no processo produtivo; o Capítulo 3 e o Capítulo 4 apresentam o estudo do processo de produção de álcool hidratado combustível discutindo a influência dos componentes do vinho no funcionamento das colunas, técnicas de otimização de processo aplicadas a um processo industrial real e técnicas de controle de processo aplicadas ao controle de acetaldeído e da graduação alcoólica no bioetanol; o Capítulo 5 apresenta uma nova planta industrial para produção de álcool neutro e álcool hidratado discutindo detalhadamente as vantagens e desvantagens do novo processo frente a plantas industriais tradicionais brasileira e francesa; por fim, o Capítulo 6 apresenta as conclusões gerais do trabalho sugerindo temas para investigações futuras. A análise dos resultados obtidos permitiu conluir que, ainda que consolidado, o processo produtivo de etanol através de cana-de-açúcar apresenta lacunas importantes, principalmente quando se deseja produzir etanol de qualidade superior. Nesse sentido, uma nova planta industrial foi proposta com o objetivo de produzir etanol neutro e hidratado em uma única instalação com redução nos custos de instalação (menor numero de colunas) e de consumo de vapor
Abstract: The gradual reduction of fossil fuel reserves and growing concerns about the effects of global warming have encouraged more research on clean energy sources. Among these energies, ethanol from sugar cane, used in Brazil since the creation of the National Alcohol Program (PROALCOOL) in 1975, has undergone continuous changes in their production process. These changes were due to the emergence of the concept of biorefineries, aiming at a full utilization of sugarcane biomass for energy production, and the continuous and quick growth of the Brazilian alcohol-chemical industry, using the ethanol as raw material for the production of several other products, increasing the demand for ethanol with better quality and boosting the research to improving the current production process.Taking into account this present scenario, this thesis aims to study an industrial process for ethanol production, by computational simulation, analyzing the influence of the contaminants of the fermented sugar cane in the operation of distillation columns, investigating the possibility of developing a new plant for the industrial production of fuel alcohol and neutral alcohol, a particular type of hydrated alcohol of high economic value and low content of contaminants used in the manufacture of fine chemicals and beverages. To fulfill this objective, this thesis is divided into six chapters: Chapter 1 presents a literature review of scientific literature related to the production of fuel alcohol, pointing out the main shortcomings inherent in this theme; Chapter 2 discusses an industrial process for cachaça production by continuous distillation featuring a careful study of the phase equilibrium of the main components of the fermented sugar cane and analyzing their influence in the production process; Chapter 3 and Chapter 4 presents the study of an industrial plant for hydrated fuel ethanol production discussing the influence of the main components of the wine in the columns operation, techniques of process optimization applied to a real industrial process and techniques of control process applied to the control of acetaldehyde and alcoholic graduation in bioethanol; Chapter 5 presents a new plant for neutral and hydrated alcohol productions, discussing in detail the advantages and disadvantages of the new process compared to traditional Brazilian and French industrial plants; finally, the Chapter 6 presents the overall findings of the study and suggesting topics for future investigations. Taking into account the results of this thesis, was possible to concluded that, although consolidated, the ethanol production process using sugar cane as raw material presents important gaps especially when related with high quality ethanol. Some of these shortcomings were solved by proposing a new industrial configuration in order to produce neutral and hydrated ethanol in a single installation with lower installation costs (less number of columns) and steam consumption
Doutorado
Engenharia de Alimentos
Doutor em Engenharia de Alimentos
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Ardila, Yurany Camacho 1985. "Gaseificação da biomassa para a produção de gás de síntese e posterior fermentação para bioetanol : modelagem e simulação do processo." [s.n.], 2015. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266052.

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Orientadores: Maria Regina Wolf Maciel, Betânia Hoss Lunelli
Tese (doutorado) ¿ Universidade Estadual de Campinas, Faculdade de Engenharia Química
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Resumo: A produção de biocombustíveis a partir da biomassa apresenta-se como uma alternativa para suprir as limitadas reservas de petróleo. A biomassa, atualmente, está sendo usada para diferentes processos termoquímicos, entre os quais a gaseificação é o de maior destaque. A gaseificação produz gás de síntese que é uma mistura, principalmente, de CO, H2 e CO2. Este gás serve para produzir energia, diferentes produtos químicos e biocombustíveis, como por exemplo, o bioetanol. A partir do gás de síntese, a produção de bioetanol pode ser realizada usando catalisadores químicos ou biocatalisadores, sendo este último processo conhecido como fermentação do gás de síntese. Para o processo integrado de gaseificação da biomassa e posterior fermentação para produção de bioetanol, as informações na literatura são escassas, o que dificulta avaliar a viabilidade desta nova tecnologia, em termos de condições operacionais. O uso de modelos matemáticos e sua simulação computacional podem auxiliar neste estudo. A literatura dispõe de vários estudos envolvendo simulações computacionais aplicadas à gaseificação de diferentes biomassas. Porém, poucos abordam a caracterização real do processo e as propriedades da biomassa utilizada, considerando apenas as propriedades para o carvão mineral, o que acaba gerando divergência nos resultados. Além disso, a maioria fundamenta suas simulações em modelos simples com base na caracterização elementar-imediata, que acaba limitando o desenvolvimento de plantas virtuais, que são baseadas na análise composicional da biomassa quando focadas na produção de bioetanol como etapa final ou como integração do processo. Assim, este trabalho tem como objetivos estudar o processo completo de gaseificação e realizar um estudo preliminar da fermentação do gás de síntese, mediante simulações computacionais, para definir as melhores condições e variáveis que afetam o processo global quando o bagaço de cana-de-açúcar é utilizado como matéria-prima. As simulações foram desenvolvidas utilizando o simulador comercial Aspen Plus¿ e os resultados validados com dados experimentais da literatura e dados obtidos nos Laboratórios LDPS/LOPCA/BIOEN/FEQ/UNICAMP. Para a completa simulação do processo, várias etapas foram estudadas e divididas para melhor entendimento. Foram desenvolvidos modelos matemáticos para predizer propriedades necessárias para o desenvolvimento de processos termoquímicos. Simulações baseadas nas análises elementar-imediata e composicional da biomassa foram realizadas para definir a decomposição inicial da biomassa, demonstrando os diferentes rendimentos e produtos que são gerados e que são a base da etapa inicial da gaseificação. Simulações completas da gaseificação foram desenvolvidas para estudar a gaseificação em diferentes tipos de reatores. A influência das condições de operação na gaseificação como temperatura, razão de equivalência (ER), injeção de vapor e temperatura do pré-aquecedor do ar no desempenho do gaseificador foram avaliadas. Com as condições operacionais da gaseificação definidas foi proposta uma simulação para representar a fermentação do gás de síntese. A partir dos resultados obtidos foi constatado que a composição do gás de síntese é alterada pelo aumento do ER e pela injeção de vapor no processo, e diferentes concentrações de bioetanol são obtidas quando a pressão de entrada do gás de síntese é alterada
Abstract: The production of biofuels from biomass is presented as an alternative to save the limited oil reserves. Currently, biomass is being used for different thermochemical processes, including gasification which is the most prominent. Gasification produces synthesis gas which is a mixture mainly of CO, H2 and CO2. This gas is used to produce energy, several chemicals and biofuels, such as ethanol. The ethanol from synthesis gas may be produced using chemical catalysts or biocatalysts, this latter process is known as fermentation of syngas. The information in the literature is scarce for the integrated gasification of biomass and subsequent fermentation to produce ethanol, making it difficult to see the feasibility of this new technology, in terms of operating conditions. The use of mathematical models and their computer simulation can help this study. Typically, numerous studies involving computer simulations, applied to different biomass gasification, are found in the literature. However, few of them approach the real characterization of process and properties for used biomass, considering only the properties for coal, which ends up generating divergence in the results. Moreover, most of the simulations are grounded on simple models based on proximate-ultimate characteristics, which end up limiting the development of virtual plants, which are based on biomass compositional analysis when focused on the production of ethanol as the final step or as integration process. Thus, the aims of this work are to study the complete gasification process and to carry out a preliminary study of synthesis gas fermentation, through computer simulations, in order to define the best conditions and variables that affect this global process when sugarcane bagasse is used as raw material. The simulations were developed using Aspen Plus ¿ simulator and the results validated with experimental data from literature and data obtained in the laboratories LDPS / LOPCA / BIOEN / FEQ / UNICAMP. For the full simulation of the process, several steps were studied and divided for a better understanding. Mathematical models were developed to predict properties required for the development of thermochemical processes. Simulations based on biomass analysis as proximate-ultimate and compositional were done to define the initial decomposition of biomass, demonstrating the different yields and products that are generated and which are the basis of the initial stage of the gasification. Complete simulations of gasification were carried out to study different types of gasification reactors. The influence of operating conditions at gasification performance was investigated; variables such as temperature, equivalence ratio (ER), steam injection and preheater temperature were evaluated. With the set conditions of gasification was proposed a simulation to represent the fermentation of syngas. It was demonstrated that the synthesis gas composition is changed when increased the ER and steam injection; and different ethanol concentrations are obtained when the input pressure of the synthesis gas is changed
Doutorado
Desenvolvimento de Processos Químicos
Doutora em Engenharia Quimica
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Smestad, Haley Hayden. "Modeling of an Ethanol - Water- LiBr Ternary System for the Simulation of Bioethanol Purification using Pass-Through Distillation." Digital WPI, 2016. https://digitalcommons.wpi.edu/etd-theses/452.

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Accurate modeling of mixed solvent electrolyte systems is difficult and is not readily available in property modeling software such as Aspen Plus. Support for modeling these systems requires the knowledge and input of parameters specific to the compounds in question. The need for these parameters is particularly relevant in simulating new designs based upon recent developments in a concept known as pass-through distillation (PTD). In support of a specific application of PTD, this work determines and validates with existing experimental data, accurate user-parameters for the eNRTL property model in the ternary system of ethanol, water, and lithium bromide. Furthermore, this work creates the foundation for simulating this new PTD process by modeling the removal of bioethanol from a fermentation broth using low temperature evaporation in conjunction with absorption and stripping units to omit the need of a condenser requiring refrigeration. This will enable future investigations into the applications of PTD as well as provide a foundation for modeling the ternary system of ethanol, water and lithium bromide.
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Berdouzi, Fatine. "Simulation dynamique de dérives de procédés chimiques : application à l'analyse quantitative des risques." Phd thesis, Toulouse, INPT, 2017. http://oatao.univ-toulouse.fr/19822/1/Berdouzi_19822.pdf.

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Les risques sont inhérents à l’activité industrielle. Les prévoir et les maîtriser sont essentiels pour la conception et la conduite en sécurité des procédés. La réglementation des risques majeurs impose aux exploitants la réalisation d’études de sécurité quantitatives. La stratégie de maîtrise des risques repose sur la pertinence des analyses de risques. En marche dégradée, la dynamique des événements est déterminante pour quantifier les risques. Toutefois, de nos jours cette connaissance est difficilement accessible. Ce travail propose une méthodologie d’analyse de risques quantitative qui combine la méthode HAZOP, le retour d’expérience et la simulation dynamique de dérives de procédés. Elle repose sur quatre grandes étapes : La première étape est l’étude du fonctionnement normal du procédé. Pour cela, le procédé est décrit de façon détaillée. Des études complémentaires de caractérisation des produits et du milieu réactionnel sont menées si nécessaires. Ensuite, le procédé est simulé dynamiquement en fonctionnement normal. Lors de la seconde étape, parmi les dérives définies par l’HAZOP et le retour d’expérience, l’analyste discrimine celles dont les conséquences ne sont pas prévisibles et/ou nécessitent d’être quantifiées. La troisième phase fournit une quantification du risque sur la base de la simulation dynamique des scenarii retenus. Lors de la dernière étape, des mesures de maîtrise des risques sont définies et ajoutées au procédé lorsque le niveau de risque est supérieur au risque tolérable. Le risque résiduel est ensuite calculé jusqu’à l’atteinte de la cible sécurité. Le logiciel Aspen Plus Dynamics est sélectionné. Trois études de cas sont choisies pour démontrer d’une part, la faisabilité de la méthodologie et d’autre part, la diversité de son champ d’application : · la première étude de cas porte sur un réacteur semi-continu siège d’une réaction exothermique. L’oxydation du thiosulfate de sodium par le peroxyde d’hydrogène est choisie. Ce cas relativement simple permet d’illustrer la diversité des causes pouvant être simulées (erreur procédurale, défaut matériel, contamination de produits, …) et la possibilité d’étudier des dérives simultanées (perte de refroidissement du milieu et sous dimensionnement de la soupape de sécurité). · le deuxième cas concerne un réacteur semi-batch dans lequel une réaction exothermique de sulfonation est opérée. Elle est particulièrement difficile à mettre en œuvre car le risque d’emballement thermique est élevé. Cette étude montre l’intérêt de notre approche dans la définition des conditions opératoires pour la conduite en sécurité. · le troisième cas d’étude porte sur un procédé continu de fabrication du propylène glycol composé d’un réacteur et de deux colonnes de distillation en série. L’objectif est ici d’étudier la propagation de dérives le long du procédé. Sur la base du retour d’expérience, deux dérives au niveau du rebouilleur de la première colonne sont étudiées et illustrent les risques de pleurage et d’engorgement. La simulation dynamique illustre la propagation d’une dérive et ses conséquences sur la colonne suivante.
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Saha, Pretom. "Carbon Dioxide Gasification of Hydrothermally Treated Manure-Derived Hydrochar." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1554290140503171.

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Jurado, Pontes Nelia. "Experimental and modelling studies of coal/biomass oxy-fuel combustion in a pilot-scale PF combustor." Thesis, Cranfield University, 2014. http://dspace.lib.cranfield.ac.uk/handle/1826/9310.

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This thesis focuses on enhancing knowledge on co-firing oxy-combustion cycles to boost development of this valuable technology towards the aim of it becoming an integral part of the energy mix. For this goal, the present work has addressed the engineering issues with regards to operating a retrofitted multi-fuel combustor pilot plant, as well as the development of a rate-based simulation model designed using Aspen Plus®. This model can estimate the gas composition and adiabatic flame temperatures achieved in the oxy-combustion process using coal, biomass, and coal-biomass blends. The fuels used for this study have been Daw Mill coal, El Cerrejon coal and cereal co-product. A parametric study has been performed using the pilot-scale 100kWth oxy-combustor at Cranfield University and varying the percentage of recycle flue gas, the type of recycle flue gas (wet or dry), and the excess oxygen supplied to the burner under oxy-firing conditions. Experimental trials using co-firing with air were carried out as well in order to establish the reference cases. From these tests, experimental data on gas composition (including SO3 measurement), temperatures along the rig, heat flux in the radiative zone, ash deposits characterisation (using ESEM/EDX and XRD techniques), carbon in fly ash, and acid dew point in the recycle path (using an electrochemical noise probe), were obtained. It was clearly shown during the three experimental campaigns carried out, that a critical parameter was that of minimising the air ingress into the process as it was shown to change markedly the chemistry inside the oxy-combustor. Finally, part of the experimental data collected (related to gas composition and temperatures) has been used to validate the kinetic simulation model developed in Aspen Plus®. For this validation, a parametric study considering the factor that most affect the oxy-combustion process (the above mentioned excess amount of air ingress) was varied. The model was found to be in a very good agreement with the empirical results regarding the gas composition.
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Custodio, Aline Ferrão. "Proposição de um processo intensificado e via tecnologia verde para a obtenção de acetato de etila." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266267.

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Orientador: Rubens Maciel Filho, Maria Regina Wolf Maciel
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Quimica
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Resumo: Este trabalho de tese propôs um processo para a produção de acetato de etila através da reação de esterificação do ácido acético com o etanol, utilizando conceitos de intensificação de processos e de Engenharia Verde (Zero Avoidable Pollution com renweable feedstock). A contribuição principal desta pesquisa é a proposta de uma planta conceitual com alta pureza de todas as correntes do processo, o que diminui desperdícios, de modo que o produto indesejado ou os reagentes não convertidos não estejam presentes nas correntes de saída do sistema. No processo proposto, todos os reagentes são de origem renovável. O acetato de etila é um solvente orgânico importante utilizado na produção de vernizes, de tintas, de resinas sintéticas e de agentes adesivos, sendo produzido normalmente, através da reação reversível do ácido acético com o etanol, com ácido sulfúrico com catalisador. O processo deste sistema de obtenção é bastante complexo porque o produto (acetato de etila) não é o componente mais volátil nem o menos volátil no sistema, de modo que a etapa de separação não é fácil de definir. O projeto conceitual proposto inclui um reator de tanque contínuo (CSTR) acoplado a um retificador, um decantador e duas colunas de purificação, para a água e o acetato de etila. O software comercial ASPEN PLUS® foi utilizado para a realização dos estudos do processo proposto através de simulação computacional em estado estacionário, e o simulador ASPEN DYNAMICS® foi utilizado para a simulação dinâmica
Abstract: This work proposes a process for ethyl acetate production via esterification of acetic acid with ethanol using concepts of process intensification and zero avoidable pollution. The main contribution of this work is the high-purity of all process streams, including the wastes ones, so that undesired product or unconverted reactants are not present in any throughput streams. Ethyl acetate is an important organic solvent widely used in the production of varnishes, ink, synthetic resins, and adhesive agents and it is normally produced via reversible reaction of acetic acid with ethanol, with sulfuric acid as catalyst. The process design of such system is complex because the ethyl acetate product is neither the lightest nor the heaviest component in the system, so that the separation stage is not an easy task. The proposed process design includes a continuous-stirred tank reactor (CSTR) coupled with a rectifier, a decanter and two purification columns for water and ethyl acetate. The commercial ASPEN PLUS® software was used to steady state simulation and ASPEN DYNAMICS® was used to dynamic simulation
Doutorado
Desenvolvimento de Processos Químicos
Doutor em Engenharia Química
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Maia, Júlio Pereira 1978. "Simulação dinâmica, otimização e análise de estratégias de controle da torre de vácuo da unidade de destilação de processos de refino de petróleo." [s.n.], 2013. http://repositorio.unicamp.br/jspui/handle/REPOSIP/266612.

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Orientador: Rubens Maciel Filho
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Engenharia Química
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Resumo: Esta tese apresenta um estudo de estratégias de esquemas de controle em unidades de destilação a vácuo de refinarias de petróleo, com o uso de dados e informações de uma refinaria brasileira, de modo a se desenvolver uma simulação representativa do processo, onde uma diferença global máxima de 5% entre os resultados de simulação e os dados de saída reais foi obtida. A simulação foi executada com alto nível de detalhamento, com cálculos de queda de pressão, dimensionamento de sistemas de bombeamento e uso de internos de coluna comerciais. Uma análise paramétrica foi executada para a verificação das variáveis mais influentes do processo. A simulação em estado estacionário resultante foi então convertida para o regime dinâmico, onde um esquema de controle equivalente ao esquema de controle da planta real foi implementado. Este esquema de controle foi submetido a um conjunto de perturbações usuais ao processo real, produzindo respostas dinâmicas do processo para cada perturbação aplicada. Pela análise das dinâmicas destas respostas e das respostas do sistema em malha aberta, um esquema de controle alternativo foi proposto e verificado da mesma maneira que o esquema de controle equivalente. Malhas de controle específicas para quantificar a qualidade dos produtos, tendo por base o índice ASTM D86 foram inseridas. A comparação entre os dois esquemas de controle por meio das respostas dinâmicas na qualidade dos produtos, considerando como parâmetro o ISE (Integral Squared Error) das malhas de cada esquema para comparação, apresentou uma redução média do erro em 70% na qualidade dos produtos principais
Abstract: A petroleum vacuum distillation unit study on control scheme strategies is developed in this work. Real plant data and information is gathered from a Brazilian Refinery to develop a representative simulation of the process, which had achieved a maximum 5% overall difference from the plant results. The simulation was set to be highly detailed, including pressure drop calculations, pumping system and the use of commercial column internals (packing and plates) in it. A parametric analysis was carried in order to verify the most influent variables in the process, with respect to temperature profiles, product flows and product qualities. The resultant steady state simulation was then converted into dynamic regime, when a control scheme equivalent to the real plant control scheme was implemented. This control scheme was then subjected to a set of common perturbations that occur in the real process, producing the dynamic response of the process to each perturbation applied. By analyzing the dynamics of these responses and the open loop responses, an alternative control scheme is proposed and verified in the same manner the later one was. A specific control loop was proposed to account a petroleum product quality index, such as ASTM D86 95% recovery. The comparison of the control schemes by means of the dynamic responses considering the correlated ISE (integral squared error) of each scheme has shown an average error reduction of 70% in the main products quality
Doutorado
Desenvolvimento de Processos Químicos
Doutor em Engenharia Química
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Books on the topic "Aspen Plus Simulation"

1

Schefflan, Ralph. Teach yourself the basics of Aspen plus. Hoboken, N.J: Wiley, 2010.

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Chemical Process Design and Simulation: Aspen Plus and Aspen Hysys Applications. Wiley-Interscience, 2019.

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Haydary, Juma. Chemical Process Design and Simulation: Aspen Plus and Aspen Hysys Applications. American Institute of Chemical Engineers, 2018.

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Haydary, Juma. Chemical Process Design and Simulation: Aspen Plus and Aspen Hysys Applications. American Institute of Chemical Engineers, 2019.

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Schefflan, Ralph. Teach Yourself the Basics of Aspen Plus. American Institute of Chemical Engineers, 2016.

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Schefflan, Ralph. Teach Yourself the Basics of Aspen Plus. American Institute of Chemical Engineers, 2011.

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Schefflan, Ralph. Teach Yourself the Basics of Aspen Plus. American Institute of Chemical Engineers, 2016.

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Schefflan, Ralph. Teach Yourself the Basics of Aspen Plus. American Institute of Chemical Engineers, 2011.

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Book chapters on the topic "Aspen Plus Simulation"

1

Fu, Zhongbin, Yaning Zhang, Hui Liu, Bo Zhang, and Bingxi Li. "Simulation Analysis of Biomass Gasification in an Autothermal Gasifier Using Aspen Plus." In Cleaner Combustion and Sustainable World, 479–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-30445-3_66.

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Dabkeya, Rakesh Kumar, and Mahendra Lalwani. "Mustard and Cotton Waste-Based Biomass Gasifier Simulation by Using Aspen Plus." In Algorithms for Intelligent Systems, 591–606. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5077-5_53.

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Chen, Qiu. "The Application of Process Simulation Software of Aspen Plus Chemical Engineering in the Design of Distillation Column." In Advances in Intelligent Systems and Computing, 618–22. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43309-3_88.

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Hussain, Maham, Lemma Dendena Tufa, Suzana Yusup, Haslinda Zabiri, and Syed A. Taqvi. "Aspen Plus® Simulation Studies of Steam Gasification in Fluidized Bed Reactor for Hydrogen Production Using Palm Kernel Shell." In Communications in Computer and Information Science, 628–41. Singapore: Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-6463-0_54.

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Segovia-Hernández, Juan Gabriel, and Fernando Israel Gómez-Castro. "The Simulator Aspen Plus®." In Stochastic Process Optimization using Aspen Plus®, 55–59. Boca Raton : Taylor & Francis, CRC Press, 2017.: CRC Press, 2017. http://dx.doi.org/10.1201/9781315155739-4.

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Li, Bao-Hong, Nan Zhang, and Robin Smith. "Process Simulation of a 420MW Gas-fired Power Plant using Aspen Plus." In 12th International Symposium on Process Systems Engineering and 25th European Symposium on Computer Aided Process Engineering, 209–14. Elsevier, 2015. http://dx.doi.org/10.1016/b978-0-444-63578-5.50030-x.

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Pascu, A., A. Badea, C. Dinca, and L. Stoica. "Simulation of polymeric membrane in Aspen Plus for CO2 post-combustion capture." In Engineering Optimization 2014, 303–7. CRC Press, 2014. http://dx.doi.org/10.1201/b17488-55.

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Singh, Ravinder, and Helen Huiru Lou. "Safety and Efficiency Enhancement in LNG Terminals." In Petrochemical Catalyst Materials, Processes, and Emerging Technologies, 164–76. IGI Global, 2016. http://dx.doi.org/10.4018/978-1-4666-9975-5.ch007.

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Liquefaction of natural gas helps in transporting it over long distances by sea vessels. It is then regasified and transported through pipelines to the consumer. Due to large energy density of Liquefied Natural Gas (LNG), and associated flammability issues, the LNG terminal involves high risk. Consequently, safety is an important factor in the operation of LNG terminals. Although a substantial amount of time money and effort has been put in this area, there is always some possibility of improving the process so that less risk is involved. Rapid advancement in process simulation software like Aspen Plus and Aspen HYSYS, has led to the convenience of experimenting the various control methodologies on the computer offline from the actual plant operation, before they are implemented in real time. In this chapter, main hazards associated with LNG terminal operation will be highlighted. Further, recent advancements in research for safety enhancement and efficiency enhancement in the liquefaction and regasification processes will also be included.
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Singh, Ravinder, and Helen Huiru Lou. "Safety and Efficiency Enhancement in LNG Terminals." In Natural Resources Management, 1584–96. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-0803-8.ch075.

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Liquefaction of natural gas helps in transporting it over long distances by sea vessels. It is then regasified and transported through pipelines to the consumer. Due to large energy density of Liquefied Natural Gas (LNG), and associated flammability issues, the LNG terminal involves high risk. Consequently, safety is an important factor in the operation of LNG terminals. Although a substantial amount of time money and effort has been put in this area, there is always some possibility of improving the process so that less risk is involved. Rapid advancement in process simulation software like Aspen Plus and Aspen HYSYS, has led to the convenience of experimenting the various control methodologies on the computer offline from the actual plant operation, before they are implemented in real time. In this chapter, main hazards associated with LNG terminal operation will be highlighted. Further, recent advancements in research for safety enhancement and efficiency enhancement in the liquefaction and regasification processes will also be included.
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Yamanee-Nolin, Mikael, Anton Löfgren, Niklas Andersson, Bernt Nilsson, Mark Max-Hansen, and Oleg Pajalic. "Single-shooting optimization of an industrial process through co-simulation of a modularized Aspen Plus Dynamics model." In Computer Aided Chemical Engineering, 721–26. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-818634-3.50121-1.

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Conference papers on the topic "Aspen Plus Simulation"

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Øi, Lars Erik, and Irene Yuste Tirados. "Heat Pump Efficiencies Simulated with Aspen HYSYS and Aspen Plus." In The 56th Conference on Simulation and Modelling (SIMS 56), October, 7-9, 2015, Linköping University, Sweden. Linköping University Electronic Press, 2015. http://dx.doi.org/10.3384/ecp15119141.

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Haji, Shaker, Omar Al Deeb, and Ashraf Hassan. "Optimizing a methanol reactor in Aspen Plus." In 2019 8th International Conference on Modeling Simulation and Applied Optimization (ICMSAO). IEEE, 2019. http://dx.doi.org/10.1109/icmsao.2019.8880381.

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Nduse, Russ, and Tunde M. Oladiran. "Simulation of a Co-digester Plant using Aspen Plus." In Environment and Water Resource Management / 837: Health Informatics / 838: Modelling and Simulation / 839: Power and Energy Systems. Calgary,AB,Canada: ACTAPRESS, 2016. http://dx.doi.org/10.2316/p.2016.839-008.

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Trop, Peter, Jurij Krope, Danijela Dobersek, and Darko Goricanec. "Simulation of Desulphurization of Synthesis Gas with Aspen Plus." In Power and Energy Systems. Calgary,AB,Canada: ACTAPRESS, 2012. http://dx.doi.org/10.2316/p.2012.768-065.

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Haugen, Hildegunn H., Britt M. Halvorsen, and Marianne S. Eikeland. "Simulation of Gasification of Livestock Manure with Aspen Plus." In The 56th Conference on Simulation and Modelling (SIMS 56), October, 7-9, 2015, Linköping University, Sweden. Linköping University Electronic Press, 2015. http://dx.doi.org/10.3384/ecp15119271.

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Tan, Wenyi, and Qin Zhong. "Simulation of Hydrogen Production in Biomass Gasifier by ASPEN PLUS." In 2010 Asia-Pacific Power and Energy Engineering Conference. IEEE, 2010. http://dx.doi.org/10.1109/appeec.2010.5449270.

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Eikeland, Marianne S., Rajan K. Thapa, and Britt M. Halvorsen. "Aspen Plus Simulation of Biomass Gasification with Known Reaction Kinetic." In The 56th Conference on Simulation and Modelling (SIMS 56), October, 7-9, 2015, Linköping University, Sweden. Linköping University Electronic Press, 2015. http://dx.doi.org/10.3384/ecp15119149.

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Cheng, Ming, Matthew Hodges, Kenny Kwan, Hsuan-Tsung Hsieh, Yitung Chen, George Vandegrift, Jackie Copple, and James Laidler. "An Object-Oriented Systems Engineering Model Design for Integrating Spent Fuel Treatment Facility and Chemical Separation Processes." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15885.

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The mission of the Transmutation Research Program (TRP) at University of Nevada, Las Vegas (UNLV) is to establish a nuclear engineering test bed that can carry out effective transmutation and advanced reactor research and development effort. TRPSEMPro package, developed from previous project period, integrated a chemical separation code from the Argonne National Laboratories (ANL). Current research focus has two folds: development of simulation system processes applied to Spent Fuel Treatment Facility (SFTF) using ASPEN-plus and further interaction of ASPEN+ program from TRPSEMPro interface. More details will be discussed below. ANL has identified three processes simulations using their separation technologies. The first process is to separate aqueous acid streams of acetic acid, nitric acid, water and a variety of fission product nitric salts. Distillation separation method is used to remove the desired components from the streams. The second simulation is to convert plutonium nitrate to plutonium metal. Steps used for the process simulation are precipitation, calcinations, fluorination and reduction. The third process currently under development is vitrification of fission product of raffinate streams. During the process, various waste streams from the plant are mixed and fed to a process that converts them to a solid state glass phase. The vitrification process used by the Hanford and Savannah River facilities was selected as a guideline to develop the prototype simulation process using ASPEN-Plus. Current research is focusing on identifying unit operations required to perform the vitrification of the waste streams. The first two processes are near completion stage. Microsoft Visual Basic (MS VB) has been used to develop the entire system engineering model package, TRPSEMPro. Currently a user friendly interface is under development to facilitate direct execution of ASPEN-plus within TRPSEMPro. The major purpose for the implementation is to create iterative interaction among system engineering modeling, ANL separation model and ASPEN-Plus process that outputs optimized separation/process simulation results. The ASPEN-plus access interface from TRPSEMPro allows users to modify and execute process parameters derived from the ASPEN Plus simulations without navigating through ASPEN-Plus. All ASPEN-plus simulation results can be also accessible by the interface. Such integration provide a single interaction gateway for researchers interested in SFTF process simulation without struggling with complicate data manipulation and joggling among various software packages.
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Kou, Nannan, Fu Zhao, and Li Zhang. "Aspen Plus Process Simulation of Flexible Feedstock Thermo-Chemical Ethanol Production." In ASME 2009 International Manufacturing Science and Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/msec2009-84090.

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Current US transportation sector mainly relies on liquid hydrocarbon derived from petroleum and about 60% of the petroleum consumed is from areas where supply may be disturbed by regional instability. This has led to serious concerns on global warming and energy security. To address these issues, numerous alternative energy carriers have been proposed. Among them, second generation biofuel is one of the most promising technologies. Gasification based thermo-chemical conversion can utilize a wide range of biomass wastes and residues and bring flexibility to both feedstock and production sides of a plan. Thus it presents an attractive technical route. In this paper, a flexible feedstock thermo-chemical ethanol production process is investigated. This research focuses mainly on the evaluation of the feasibility of the process through numerical simulation. An existing thermo-chemical ethanol production model developed by NREL has been updated to handle the cases when different biomass feedstock and feedstock combinations are used. It is found that the ethanol yield is positively linear proportional to the feedstock feeding rate, while the total conversion efficiency is negatively proportional to the feeding rate. To demonstrate a feedstock management strategy, a plant located near a major city with a population of 200,000 and above is considered and MSW, corn stover and wood chips are selected as potential feedstock. Simulation results indicate that with wood chips as the backup feedstock the plant can be operated under extreme conditions when corn stover availability is significantly reduced without major equipment modification.
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Dalong Jiang, Xiaohua Huo, Changqing Dong, Junjiao Zhang, and Yongping Yang. "Sludge auto-thermal drying and incineration generation simulation with ASPEN PLUS." In 2009 International Conference on Sustainable Power Generation and Supply. SUPERGEN 2009. IEEE, 2009. http://dx.doi.org/10.1109/supergen.2009.5348040.

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Reports on the topic "Aspen Plus Simulation"

1

White, Charles W. ASPEN Plus Simulation of CO2 Recovery Process. Office of Scientific and Technical Information (OSTI), September 2002. http://dx.doi.org/10.2172/810497.

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