Academic literature on the topic 'Micro-distillation'
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Journal articles on the topic "Micro-distillation"
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Seok, D. R., and Sun-Tak Hwang. "Zero-gravity distillation utilizing the heat pipe principle(micro-distillation)." AIChE Journal 31, no. 12 (December 1985): 2059–65. http://dx.doi.org/10.1002/aic.690311215.
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Winshell, Elaine B., and Robin P. Ertl. "Micro vacuum-distillation of radioactive liquids." Analytical Chemistry 58, no. 7 (June 1986): 1599–600. http://dx.doi.org/10.1021/ac00298a083.
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Tang, Yin, Yongjie Zheng, Jingzhi Tian, and Jing Sun. "Process Intensification of Chemical Exchange Method for Boron Isotope Separation Using Micro-Channel Distillation Technology." Micromachines 12, no. 10 (October 6, 2021): 1222. http://dx.doi.org/10.3390/mi12101222.
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A micro-channel distillation device was used for the process intensification method to separate boron isotopes, 10B and 11B. Three-dimensional (3D) printing technology was introduced to manufacture the micro-channel device, which used the chemical exchange method with anisole as the donor to separate the boron isotopes. This device was tested in total reflux mode, and the height of an equivalent theoretical plate of the micro-channel distillation equipment was reduced to 1.56 cm. The accurate control of pressure and temperature, as well as the flow rate of the complex, were factors that affected separation ability. Thus, for process intensification, this micro-channel distillation device can be operated horizontally and connected in series into similar modules to effectively improve separation efficiency and reduce the size of the equipment.
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Gao, Kun Yang, Xiao Feng Huang, Yong Yang, Lei Yang, Qi Dong Xia, Yan Fu Wei, Tao Zhou, and Yang Song Qin. "Advances on the Extraction and Separation Technologies in Tea Aroma Components Research." Advanced Materials Research 301-303 (July 2011): 421–25. http://dx.doi.org/10.4028/www.scientific.net/amr.301-303.421.
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Study on the tea aroma components is greatly significant, which are important factors in tea quality valuation.In recent years, nine main methods are under consideration：simultaneous distillation and solvent extraction, vacuum distillation extraction, steam distillation under reduced pressure, headspace analysis, solid-phase micro-extractions, headspace solid-phase micro-extractions, tea liquid absorption, supercritical fluid extraction and electronic nose. Meanwhile, advantages and disadvantages of each method were analyzed, in order to conduct technological guidance on the extraction and separation technologies in tea aroma components and provide a theoretical basis in improvement of each method.
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Hibara, Akihide, Kunihiko Toshin, Takehiko Tsukahara, Kazuma Mawatari, and Takehiko Kitamori. "Microfluidic Distillation Utilizing Micro–Nano Combined Structure." Chemistry Letters 37, no. 10 (October 5, 2008): 1064–65. http://dx.doi.org/10.1246/cl.2008.1064.
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Sundberg, Aarne, Petri Uusi-Kyyny, and Ville Alopaeus. "Novel micro-distillation column for process development." Chemical Engineering Research and Design 87, no. 5 (May 2009): 705–10. http://dx.doi.org/10.1016/j.cherd.2008.09.011.
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Liu, Chan-Chiung, Yao-Nan Wang, Lung-Ming Fu, and Chien Chieh. "Micro-distillation system for formaldehyde concentration detection." Chemical Engineering Journal 304 (November 2016): 419–25. http://dx.doi.org/10.1016/j.cej.2016.06.114.
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Yang, Ruey-Jen, Chan-Chiung Liu, Yao-Nan Wang, Hui-Hsiung Hou, and Lung-Ming Fu. "A comprehensive review of micro-distillation methods." Chemical Engineering Journal 313 (April 2017): 1509–20. http://dx.doi.org/10.1016/j.cej.2016.11.041.
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Zhao, Shanfang, Ruichang Gao, and Peng Bai. "Column Pressure Control for Micro-Positive Pressure Distillation." Asian Journal of Chemistry 25, no. 15 (2013): 8501–4. http://dx.doi.org/10.14233/ajchem.2013.14804.
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Zhao, Shan Fang, Rui Chang Gao, and Peng Bai. "Study of Inert Current System Designed for Pressure Control of Micro-Positive Pressure Distillation." Applied Mechanics and Materials 275-277 (January 2013): 659–64. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.659.
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Micro-positive pressure distillation is commonly used in processes where the feed stock or products are oxygen sensitive. Constant column pressure is critical for such process as pressure fluctuations may change column performance and the oxygen-free environment leading to dramatic change in product quality. In this paper, an inert current system designed for micro-positive pressure distillation is introduced. Details of both the operation principle and system features including response time and pressure deviation are studied. Four mathematical equations describing the features are put forward to help select the appropriate parameter. This system is promising for its high sensitivity and simple construction.
Dissertations / Theses on the topic "Micro-distillation"
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Manna, Ujjwal. "Macro and micro-modelling of multi-stage distillation columns and trays." Thesis, University of Manchester, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.294161.
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Souck, Jenny. "Modelling of Crude Oil Distillation." Thesis, KTH, Skolan för kemivetenskap (CHE), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-146195.
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In the reservoir conditions, a petroleum fluid is defined by its thermodynamic and volumetric properties and by its physicochemical properties. Their behaviors are modeled from experimental data in order to properly simulate the processing of these fluids during the production. With the advent of new regulations and rigidity that exist at the custom regulations today, research centers have great difficulty in obtaining large amounts of samples. For these reason, although there are several methods to characterize the different components of crude oil, the laboratories are turning increasingly to techniques that requires lower amounts of samples: micro-distillation, gas chromatography (GC). The micro-distillation is a fast and completely computerized technique made to substitute the standard distillation for analysis of liquid petroleum products. Advantages of the method compared to the standard distillation are the reduction of working time by at least a factor of 4, the small sample volumes required for distillation (few micro liters). [24] This report is aimed to create a simple model that can predict yield curves of physical distillation, without using the micro-distillation technique. The results obtained through gas chromatography (GC) analysis by laboratory technicians enable the modeling of the fluid behavior. Having identified and treated practically all aspects of micro-distillation through simulations with PRO/II, I found out that, regardless of the setting and the thermodynamic method used, there are always significant differences between simulation results and those of the micro-distillation. The result shows that it’s still difficult to create a model which can replace micro-distillation and gas chromatography (GC) because of the huge gap between the simulation results and micro-distillation. Furthermore, the dynamics revealed that the micro distillation is not accurate. I had hoped to get additional results by studies the correlations with more samples, but that did not turn out to be the case. Regardless of that, I think that it would be interesting to study more samples and use another simulator to properly represent micro distillation. This could be an interesting topic for further studies.Under de föhållanden som reservoarens miljö erbjuder, definieras en petroleumvätska av dess termodynamiska och volymetriska egenskaper och av dess fysikalisk-kemiska egenskaper. För att korrekt simulera bearbetningen av dessa vätskor under produktion, deras beteende modelleras från experimentella data Med tillkomsten av nya regler och oflexibilitet som finns på tullbestämmelser vid gränserna idag, har forskningscenter stora svårigheter att få större mängder prover levererade. Av den anledningen, trots att det finns flera metoder för att karakterisera de olika komponenterna av råolja, tvingas laboratorier att vända sig mer och mer till alternativa analysmetoder som kräver mindre provvolymer: mikrodestillation, gaskromatografi, etc. Mikrodestillation, som är en snabb och helt datoriserad teknik, visar sig kunna ersätta standarddestillation för analys av flytande petroleumprodukter. Fördelar med metoden jämfört med standarddestillering är minskad arbetstidsåtgång med minst en faktor 4. Därtill krävs endast en begränsad provvolym (några mikroliter) i jämförelse med standarddestillation. [24] Denna rapport syftar till att skapa en enkel modell som kan förutsäga avkastningskurvan av fysisk destillation, utan att använda mikrodestillationsteknik. De resultat som erhölls genom gaskromatografiska analyser möjliggjorde modelleringen av det vätskebeteendet hos det analyserade provet. Efter att ha identifierat och behandlat praktiskt taget alla viktiga aspekter av mikro destillation genom simuleringar med PRO/II, fann jag att, oberoende av inställningen och den termodynamiska metod som används, det alltid finns stora skillnader mellan simulering och mikro destillation. Resultatet visar att det fortfarande är svårt att skapa en modell som kan ersätta mikrodestillering och gaskromatografi på grund av differensen mellan simuleringsresultaten å ena sidan, och resultaten från mikrodestillering å andra sidan. Dessutom visade resultaten att mikrodestillation som analysmetod inte ger tillförlitliga resultat. Min förhoppning var att få ytterligare användbara resultat genom att studerar potentiella korrelationer emellan fler prover, men detta visade sig inte vara fallet. Jag anser att det skulle vara intressant att studera fler prover och använda en annan simulator för att bättre representera mikrodestillation. Detta skulle kunna vara ett intressant ämne för vidare studier.
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Yang, Yifan. "Vacuum Desiccant Cooling for Personal Heat Stress Management." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34944.
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The objective of this PhD project is to develop novel membranes and desiccants that would help develop a second generation vacuum desiccant cooling (VDC) garment that is efficient, robust, durable and wearer-friendly. It was found that properly chosen support material could improve both mechanical strength and vapor flux for flat sheet polyvinylidene fluoride (PVDF), due to improved membrane structure and structure integrity that enhanced vapour mass transfer. Super solid desiccants were developed using a super absorbent polymer (SAP), which are sodium polyacrylate granules, as the host matrices to harbour LiCl. Furthermore, a novel desiccant based on loading LiCl in to hydrophobic hollow fibre membranes and therefore called membrane based desiccant fiber (MDF), was developed and demonstrated to be suitable for VDC. Heat and mass transfer for vapor absorption in MDF were analyzed. These membranes and desiccants, although developed for application in VDC, may also found applications in other fields such as water treatment, air conditioning, and natural gas dehumidification. Finally, based on the newly developed membranes and desiccants, three conceptual designs of second generation VDC garments are proposed.
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Lucchesi, Marie-Elisabeth. "Extraction Sans Solvant Assistée par Micro-ondesConception et Application à l'extraction des huiles essentielles." Phd thesis, Université de la Réunion, 2005. http://tel.archives-ouvertes.fr/tel-00118895.
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L'Extraction Sans Solvant Assistée par Micro-ondes (ESSAM) est une nouvelle technique d'extraction mise au point au sein du Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments de l'Université de La Réunion. Ce procédé est une combinaison entre une technique d'extraction traditionnelle et une technologie innovante. En effet, si les systèmes de cohobation et de piégeage du mélange vapeur d'eau-huile essentielle sont proches d'une HydroDistillation (HD), le chauffage par micro-ondes a permis de réduire de facon considérable les temps d'extraction sans ajout d'eau ni de solvant.A titre de comparaison, les huiles essentielles de plantes aromatiques fraîches et d'épices sèches ont été extraites par l'ESSAM et par une technique plus traditionnelle l'HD. Concernant les plantes aromatiques fraîches, les rendements sont identiques à ceux obtenus en HD et les temps d'extraction sont divisés par sept. Pour les épices, les rendements sont meilleurs en HD. La fraction en composés oxygénés, réputée pour être la plus valorisable au niveau olfactif, a une teneur toujours supérieure en utilisant l'ESSAM.
L'observation au Microscope Electronique à Balayage (MEB) des végétaux (feuilles ou graines) soumis à l'ESSAM et à l'HD a mis en évidence la spécificité de l'ESSAM au niveau des mécanismes de libération et d'extraction des molécules aromatiques au sein du végétal. L'effet des micro-ondes a pour conséquence une libération plus rapide de l'huile essentielle contenue dans la plante grâce à l'ouverture quasi instantanée des glandes et poils sécréteurs. L'explication de la différence de composition chimique entre les procédés d'extraction par HD et par ESSAM pourrait être basée principalement sur des phénomènes de solubilité.
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QUEIRÓZ, Vital de Sousa. "Obtenção de etanol líquido neutro a partir dos resíduos (cabeça e cauda) oriundos da fabricação de cachaça por processo de destilação convencional e assistido por micro-ondas para obtenção de álcool gel." Universidade Federal de Campina Grande, 2013. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/1198.
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Com o advento da globalização tecnológica, o ideal para as empresas industriais é processar matéria(s)-prima(s) com o seu aproveitamento integral para agregar mais lucratividade a cadeia produtiva e ser mais competitividade no mercado. O presente trabalho teve como objetivo, desenvolver o processo de aproveitamento dos resíduos (cabeça e cauda) oriundos da fabricação de cachaça de alambique para obtenção de etanol líquido neutro por processo de destilação convencional e por um inovador processo de destilação assistido por micro-ondas, para obtenção de álcool gel a 70°INPM. Neste trabalho, foi estudada a cinética dos processos destilatórios das misturas dos resíduos, com concentração de 40°GL, 42,5°GL, 45°GL, 47,5°GL e 50°GL nos dois sistemas de destilação, variando a temperatura de aquecimento em 90°C, 92°C, 94°C, 96°C, 99°C e 100°C onde foram definidos parâmetros como temperatura ideal de aquecimento dos sistemas, taxa de aquecimento, graduação alcoólica do etanol líquido destilado e rendimento do processo, assim como, o ajuste da formulação tradicional de obtenção de etanol gel usando etanol extraído dos resíduos. No processo destilatório, usando radiação micro-onda como agente de aquecimento, foi utilizado um microdestilador a micro-ondas desenvolvido para esse fim, mantendo-se os mesmos parâmetros da metodologia definida para a destilação convencional. Os resíduos, o álcool líquido extraído e o etanol gel antisséptico produzido foram caracterizados por métodos físicos e físico-químicos como densimetria, ebuliometria, cromatografia gasosa e viscosimetria. Os resultados obtidos mostraram que, o etanol extraído dos resíduos atende as especificações técnicas estabelecidas pela ANVISA (Agencia Nacional de Vigilância Sanitária) para produção de etanol gel antisséptico a 70°INPM e a faixa de temperatura ideal de trabalho em ambos destiladores é de 99°C - 100°C. O etanol gel antisséptico, obtido dos resíduos, apresentou características físicas e físico-químicas semelhante ao etanol gel tradicional e quanto ao seu custo/benefício, mostrou expressiva vantagem econômica do ponto de vista de custo com consumo de material e de preço do produto no mercado em comparação ao álcool gel tradicional.
With the advent of technological globalization, ideal for industrial companies is to process assessment (s) material (s) with your full time to educating the supply chain profitability and be more competitive in the market recovery. This study aimed to develop the process for recovery of waste (head and tail) deriving from the manufacture of cachaça to obtain neutral liquid ethanol by conventional distillation process and an innovative distillation process assisted by microwave, to obtain alcohol gel at 70 ° INPM. In this work , we studied the kinetics of processes destilatórios mixtures of wastes with concentration of 40°GL, 42.5°GL, 45GL°, 47.5° and 50°GL in both distillation systems, varying the temperature heating at 90°C, 92°C, 94°C, 96°C, 99°C and 100°C which defined parameters, such as temperature optimum heating systems, heating rate, ethanol alcoholic distillate yield and process, as well as adjusting the traditional formulation of obtaining ethanol from ethanol gel using waste. In the process distillatory using radiation microwaves as the heating agent, was used a microwave microdestilador developed for this purpose, keeping the same parameters as defined methodology to conventional distillation. Waste, liquid alcohol antiseptic gel extracted and ethanol produced were characterized by physical and physico-chemical as densitometry, ebuliometria, gas chromatography and viscometry. The results showed that the ethanol extract of the waste meets the technical specifications established by ANVISA ( National Health Surveillance Agency ) for ethanol antiseptic gel to 70°INPM ideal temperature range and work in both stills is 99°C - 100°C. Ethanol antiseptic gel , obtained from waste, presented physical and physical-chemical properties similar to ethanol gel and traditional terms of their cost / benefit ratio, showed significant economic advantage from the standpoint of cost material consumption and price of the product on the market compared to the traditional alcohol gel.
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Schettert, Giseane Fumagalli. "DESEMPENHO DE UMA COLUNA DE DESTILAÇÃO, FRENTE À VARIAÇÃO DAS CONCENTRAÇÕES E VAZÕES DE ALIMENTAÇÃO UTILIZANDO-SE SOLUÇÃO HIDROALCOÓLICA PADRONIZADA." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/7972.
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In Brazil, especially in Rio Grande do Sul, there is a significant increase in ethanol production in small scale, i.e. in micro distilleries. These small-scale distilleries benefit small farmers, decentralize ethanol production and are based on the economic, social and environmental issue, but they do not hold enough technology that enables high performance in their processes, especially in the distillation stage. View of all this, it has developed this work, which aims to study the performance of a distillation column in permanent regime, developed and built at the Laboratory for Post-Graduate Processes Engineering using as feed a commercial ethanol solution and water, varying the concentration and the input flow into the column. It was opted for a standardized solution in order to achieve free results from interference by possible impurities. The concentration and flow of feed were set as independent variables and their limits established respectively in 5 and 9 °GL (% by volume) and 1848-4385 g/h. The concentrations of the distillate and of the bottom product were defined as dependent variables. Eleven tests were carried out according to the methodology of planning of experiments by using a central composite rotatable delineation, with triplicate at the central point. Three samples of distillate and bottom product were collected in flasks with lids, at intervals of fifteen minutes. Data were tabulated in spreadsheets from excel. Statistical analysis, using the software Statistica 7th version, was performed to evaluate whether the parameters: ethanol concentration and input flow of feed product interfere in the obtaining ethanol in patterns determined by ANP Resolution n°. 7, February 9th, 2011, i.e., Hydrous Ethanol Fuel (HEF) with ethanol concentration between 92.5 - 93.8°INPM. It was observed that, for the distillate, feed concentration and input flow, both in the quadratic form, are significant, i.e., there is the influence of these two variables in the obtaining of ethanol with higher alcoholic strength, but it was not able to reach the standard established by resolution of ANP. For the bottom product, it was found that neither concentration nor the input flow influence in their alcoholic concentration, possibly by design of the studied column.No Brasil, principalmente no Rio Grande do Sul, há um aumento significativo na produção de etanol em pequena escala, ou seja, em microdestilarias. Essas microdestilarias beneficiam os pequenos agricultores, descentralizam a produção de etanol e tem como base a questão econômica, social e ambiental; porém não detêm tecnologia suficiente que permita um alto rendimento nos seus processos, em especial na etapa de destilação. Diante de tudo isso, desenvolveu-se este trabalho, que tem o propósito de estudar o desempenho de uma coluna de destilação em regime permanente, desenvolvida e construída no Laboratório de Pós-Graduação em Engenharia de Processos, utilizando como alimentação uma solução de etanol comercial e água, variando a concentração e a vazão de entrada na coluna. Optou-se por uma solução padronizada a fim de se alcançar resultados livres da interferência de possíveis impurezas. A concentração e a vazão de alimentação foram definidas como variáveis independentes e seus limites estabelecidos respectivamente em 5 e 9 °GL (% em volume) e 1848-4385 kg/h. As concentrações do destilado e do produto de fundo foram definidas como variáveis dependentes. Foram realizados onze ensaios de acordo com a metodologia de planejamento de experimentos, através da utilização de um delineamento composto central rotacional, com triplicata no ponto central. Foram coletadas, em frascos com tampa, três amostras de destilado e produto de fundo, em intervalos de quinze minutos. Os dados foram tabulados em planilhas do excel. A análise estatística, através do programa Statistica versão 7, foi realizada para avaliar se os parâmetros teor alcoólico e vazão de entrada do produto de alimentação interferem na obtenção de etanol nos padrões determinados pela Resolução ANP nº 7, de 9 de fevereiro de 2011, ou seja, Etanol Hidratado Combustível (EHC) com teor alcoólico entre 92,5-93,8 °INPM. Observou-se que, para o destilado, a concentração de alimentação e a vazão de alimentação, ambas na forma quadrática, são significativas, isto é, há a influência dessas duas variáveis na obtenção de etanol com maior teor alcoólico, porém não se conseguiu alcançar o padrão estabelecido pela Resolução da ANP. Para o produto de fundo, constatou-se que nem a concentração, nem a vazão de alimentação influenciam no seu teor alcoólico, possivelmente pelo desenho da coluna estudada.
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Lucchesi, Marie Elisabeth. "Extraction sans solvant assistée par micro-ondes : conception et application à l'extraction des huiles essentielles." La Réunion, 2005. http://tel.archives-ouvertes.fr/tel-00118895/fr/.
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L'Extraction Sans Solvant Assistée par Micro-ondes (ESSAM) est une nouvelle technique d'extraction mise au point au sein du Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments de l'Université de La Réunion. A titre de comparaison, les huiles essentielles de plantes aromatiques fraîches et d'épices sèches ont été extraites par l'ESSAM et par hydrodistillation (HD). Concernant les plantes aromatiques fraîches, les rendements sont identiques à ceux obtenus en HD et les temps d'extraction sont divisés par sept. Pour les épices, les rendements sont meilleurs en HD. La fraction en composés oxygénés, réputée pour être la plus valorisable au niveau olfactif, a une teneur toujours supérieure en utilisant l'ESSAM. L'observation au Microscope Electronique à Balayage (MEB) des végétaux soumis à l'ESSAM et à FHD a mis en évidence la spécificité de l'ESSAM au niveau des mécanismes de libération et d'extraction des molécules aromatiques au sein du végétalSolvent-Free Microwave Extraction (SFME) is a new extraction process developed at thé Laboratoire de Chimie des Substances Naturelles et des Sciences des Aliments of Université de La Réunion. SFME is a combination of traditional extraction technique and an innovative technology, microwave heating. When we compared SFME and HD oil extraction on aromatic herbs and spices, we found that, herb extraction times from leaves are greatly reduced (up to seven times less) using SFME, spice yields are higher using HD. However, substantially higher amounts of oxygenated compounds, thé most valuable in terms of fragrance, are présent in thé essential oils extracted by SFME when compared with HD. Scanning Electronic Microscope techniques showed that using microwaves contributes to an almost instantaneous release of essential oils from thé glandular hairs and cells. Différence in essential oil composition between ESSAM and HD could be explained by solubility phenomena
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Hannane, Farouk. "Modélisation et contrôle d'un système colonne à distiller - pompe à chaleur a l'aide d'un micro ordinateur." Lyon, INSA, 1989. http://www.theses.fr/1989ISAL0063.
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La recherche d'économies d'énergie dans les procédés de distillation nous a conduit à faire fonctionner un système pilote comprenant : - une colonne à distiller (mélange binaire cyclohexane- n:-heptane), - une pompe à chaleur à fluide de transfert (Forane 114), - une instrumentation pour la mesure des pressions, température, débits, couple, vitesse de rotation, composition, - un micro-ordinateur (acquisition et traitement de données). Au plan de la modélisation en régimes stationnaires et de l'identification, nous avons réalisé les étapes suivantes - modélisation des fluides (corps purs et mélanges), - étalonnage de tous les capteurs et réalisation d'un programme d'acquisition, séquentielle de données sur le procédé, - réalisation d'un programme permettant de tracer directement le cycle thermodynamique décrit par le fréon dans diagramme de Mollier enthalpie-pression au cours d'un essai, -mise au point d'un modèle de connaissance statique du système par décomposition en sous systèmes : colonne à distiller -échangeur de tête et de pied -vanne de détente-compresseur ; -obtenir des résultats expérimentaux permettant l'identification des paramètres intervenant dans la modélisation de ces organes. Nous avons pu ainsi obtenir : - à reflux total, le réseau des courbes donnant le débit de distillat en fonction de l'ouverture de la vanne de détente, le coefficient de performance en fonction de la vitesse du compresseur - à reflux partiel, le taux de reflux ainsi que le COP en fonction de la vitesse de rotation du compresseur. La comparaison des coefficient de performance obtenus (voisins de 9 à reflux total et de 8 à reflux partiel) permet le calcul du temps d'amortissement qui est de l'ordre de 1,4 an.
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Krishnamoorthi, Ramesh, and Zhang Shinzhao. "Recycling of Glass Fiber Composites." Thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-16494.
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Composites are the materials which can be used for a wide variety of applications andproducts such as sports equipment, aerospace and marine because of light and stiffnessproperties. Composites are often made from thermoset resin with glass fibers.In this study, two ways of recycling composites were evaluated, which are microwavepyrolysed composites (MGC) and mechanical composites (GC). These glass fibers weregoing to be compounded with Polypropylene (PP) or Maleic Anhydride ModifiedPolypropylene (MAPP) and then injection moulded the sample by Micro-compounder.In order to get better adhesion to the polymer, a coating was added. The Neoxil 5682-polypropylene water emulsion was evaluated.The samples were characterized by Tensile Testing, Thermogravimetric Analysis (TGA),Different Scanning Calorimetry (DSC), and Dynamic Mechanical Analysis (DMA) to find aoptimum combination of recycled glass fiber reinforced polymer.Microwave pyrolysis is a new research area. The glass fiber, polymer oil and gas can beobtained by heating the composite with microwaves to in an inert atmosphere. The polymeroil can be distillated and then evaluated with GC-MS; in order to obtain the chemicalcompositions.Keywords: Composites, grinded and microwave pyrolyse composites (MGC), grindedcomposites (GC), Polypropylene (PP), Maleic Anhydride Modified Polypropylene (MAPP),Micro-compounder, Tensile Testing, Thermogravimetric Analysis (TGA), Different ScanningCalorimetry (DSC), and Dynamic Mechanical Analysis (DMA), Microwave pyrolysis,polymer oil, distillation, GCMS Analysis.Program: MSc in Resource Recovery - Sustainable Engineering
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Chen, Reui-Bin, and 陳瑞彬. "Simulation study of the performance of micro distillation columns." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/64866798696913419743.
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碩士淡江大學
化學工程與材料工程學系碩士班
101
This thesis investigates the performance of micro distillation columns (MDC) by simulation study. The mathematical models of the rectifying section, stripping section, condenser and reboiler are built on the Aspen Custom Modeler R platform. The steady state characteristics of the distillation system, parametric study of operating and device variables, heat and mass transfer resistances are analyzed. The micro distillation column, conventional distillation columns (CC) and hollow fiber distillation columns (HFC) are compared for their transfer characteristics and separation performance. On the internal profiles of the micro distillation column, the operation gives close to linear temperature and composition distributions, indicating more effective utilization of the column space and leads to a HTU (height of a transfer unit) of only a few centimeters. However, the effective equilibrium curve significantly deviates from the equilibrium curve, which is not beneficial to the energy utilization. The exergy analysis confirms this result. On the parameters influence study, the boilup ratio, reflux ratio and membrane thickness are the most significant factors affecting the product purity. For heat duties of the column, feed rata and membrane pore size give greater influence. The resistance analysis reveal that mass transfer resistance is much important than heat transfer resistance, in particular the liquid phase resistance. The improvement of the column should be focused on the mass transfer coefficient of the liquid channels. To achieve the same product purity, the HTUs of MDC and CC are a few centimeters and tens of centimeters. The key mass transfer resistances of MDC and CC lie in the liquid phase and vapor phase, respectively. The characteristics of MDC and HFC are similar, such as the HTU and interface area per unit volume, but the distributions of mass transfer resistance are quite different. For MDC, the overall mass transfer coefficient is greater and the membrane resistance is not significant, however, the major resistance of HFC is on the membrane and liquid phase.
Books on the topic "Micro-distillation"
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Manna, U. Macro and micro-modelling of multi-stage distillation columns and trays. Manchester: UMIST, 1993.
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Molecular detection of human bacterial pathogens. Boca Raton, FL: Taylor & Francis/CRC Press, 2011.
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Making Pure Corn Whiskey: A Professional Guide For Amateur And Micro Distillers. 2nd ed. Ian Smiley, 2003.
Find full textBook chapters on the topic "Micro-distillation"
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More, Tanaji T., and R. D. Tyagi. "Membrane distillation for the removal of micro-pollutants." In Current Developments in Biotechnology and Bioengineering, 253–80. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-819594-9.00011-5.
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Varatharajan, Nirubana, Deepika Chandra Sekaran, Karthikeyan Murugan, and Vanniarajan Chockalingam. "Rice Aroma: Biochemical, Genetics and Molecular Aspects and Its Extraction and Quantification Methods." In Rice [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.98913.
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Aroma in rice is unique and a superior grain quality trait, varieties especially Basmati and Jasmine-type are fetching a high export price in the International markets. Among the identified volatile aroma compounds, 2AP (2 acetyl-1-pyrroline) is believed to be the distinctive biochemical compound contributing the flavor in rice. Genetically, aroma in rice arises by the phenotypic expression of spontaneous recessive mutations of the OsBadh2 gene (also known as fgr/badh2 /osbadh2/os2AP gene) which was mapped on chromosome 8. An 8-bp deletion in the exon 7 of this gene was reported to result in truncation of betaine aldehyde dehydrogenease enzyme whose loss-of-function lead to the accumulation of a major aromatic compound (2AP) in fragrant rice. Among the different sampling methods and analytical techniques for the extraction and quantification of scentedness, simultaneous distillation extraction (SDE) is traditional and normalized, whereas solid-phase micro extraction (SPME) and supercritical fluid extraction (SFE) are new, very simple, rapid, efficient and most importantly solvent-free methods. These methods are coupled with Gas Chromatography–Mass Spectrometry (GC–MS), Gas Chromatography-Flame Ionization Detector (GC-FID) and/or Gas chromatography olfactometry (GC-O) and also with sensory evaluation for readily examining 2AP compound found in rice. The major factor affecting the aroma in rice was their genetic makeup. However, the aroma quality may be differed due to different planting, pre-harvest and postharvest handling and storage. For a more extensive elucidation of all effective and fundamental factors contributing to fragrance, it is essential to explore target quantitative trait loci (QTLs) and their inheritance and locations.
Conference papers on the topic "Micro-distillation"
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Fanelli, M., R. Arora, A. Glass, R. Litt, D. Qiu, L. Silva, A. L. Tonkovich, and D. Weidert. "Micro-scale distillation—I: simulation." In MULTIPHASE FLOW 2007. Southampton, UK: WIT Press, 2007. http://dx.doi.org/10.2495/mpf070201.
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Wang, Peng, May May Teoh, and Tai-Shung Chung. "Design of Membrane Micro-morphology for Membrane Distillation for Better Desalination Performance." In 14th Asia Pacific Confederation of Chemical Engineering Congress. Singapore: Research Publishing Services, 2012. http://dx.doi.org/10.3850/978-981-07-1445-1_636.
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Li, Yante, Wei Peng, and Guoying Zhao. "Micro-expression Action Unit Detection with Dual-view Attentive Similarity-Preserving Knowledge Distillation." In 2021 16th IEEE International Conference on Automatic Face and Gesture Recognition (FG 2021). IEEE, 2021. http://dx.doi.org/10.1109/fg52635.2021.9666975.
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Sánchez, David, Miguel Rollán, Lourdes García-Rodríguez, and G. S. Martínez. "Solar Desalination Based on Micro Gas Turbines Driven by Parabolic Dish Collectors." In ASME Turbo Expo 2019: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/gt2019-90929.
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Abstract This paper presents the preliminary design and techno-economic assessment of an innovative solar system for the simultaneous production of water and electricity at small scale, based on the combination of a solar micro gas turbine and a bottoming desalination unit. The proposed layout is such that the former system converts solar energy into electricity and rejects heat that can be used to drive a thermal desalination plant. A design model is developed in order to select the main design parameters for two different desalination technologies, phase change and membrane desalination, in order to better exploit the available electricity and waste heat from the turbine. In addition to the usual design parameters of the mGT, the impact of the size of the collector is also assessed and, for the desalination technologies, a tailored multi-effect distillation unit is analysed through the selection of the corresponding design parameters. A reverse osmosis desalination system is also designed in parallel, based on commercial software currently used by the water industry. The results show that the electricity produced by the solar micro gas turbine can be used to drive a Reverse Osmosis system effectively whereas the exhaust gases could drive a distillation unit. This would decrease the stack temperature of the plant, increasing the overall energy efficiency of the system. Nevertheless, the better thermodynamic performance of this fully integrated system does not translate into a more economical production of water. Indeed, the cost of water turns out lower when coupling the solar microturbine and Reverse Osmosis units only (between 3 and 3.5 €/m3), whilst making further use the available waste heat in a Multi Effect Distillation system rises the cost of water by 15%.
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Qiong, Zhong, and Guo Zheng. "Distillation-Iron and Carbon Micro-Electrolysis-A/O Biochemical Process for Treatment of High Concentration Organic Polyester Wastewater." In 2013 Fourth International Conference on Digital Manufacturing & Automation (ICDMA). IEEE, 2013. http://dx.doi.org/10.1109/icdma.2013.118.
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Haque, Mohammad Rejaul, and Amy Rachel Betz. "Atmospheric Condensation Performance of Plain Copper and Graphene Oxide Coated Copper Surfaces." In ASME 2018 16th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/icnmm2018-7610.
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Atmospheric condensation is important for multiple practical applications such as distillation/desalination of water, aerospace, dehumidification, and water harvesting etc. Graphene, an allotrope of carbon with two dimensional structure, has excellent thermal and electrical properties. Here we present condensation studies of water on plain copper and graphene oxide (GO) coated copper surface with different environmental conditions to explore the size distribution of the generated droplets and area coverage in order to characterize the surfaces for larger condensate harvesting. Later, droplet growth and size distributions were recorded for 41 minutes 20 seconds on the surfaces at 40% and 60% relative humidities with a surface temperature of 278 ± 0.5 K. The chamber was maintained at atmospheric pressure and 295 ± 0.5 K. The samples were observed via optical microscopy and videos of the condensation dynamics were captured. The droplet grew mainly by direct condensation and coalescence event. At later stages of condensation, surface coverage increased significantly compared to early stages for all the considered cases. Approximate 95% surface coverage was observed for GO coated copper surface which provides a great insight of this substrates for implementing it in the desired water harvesting applications. The pinning of droplets into the micro/nanostructures of the coated surfaces leads enough time for the first generation droplets to grow in larger size and made more preferential for subsequent coalescence events. Within the initial period of condensation, the number of droplets reduced according to power law decay. The contribution of coalescence mechanism in droplet growth was found larger for 60% RH than 40% RH. As droplet grew larger, direct growth became less significant compared to coalescence phenomenon.
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Chen, Fengqin, and Jianguo Zheng. "Operation parameters optimization of butadiene extraction distillation based on neural network." In 2011 IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS). IEEE, 2011. http://dx.doi.org/10.1109/nems.2011.6017562.
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Ding, Yongshan, Adam Holmes, Ali Javadi-Abhari, Diana Franklin, Margaret Martonosi, and Frederic Chong. "Magic-State Functional Units: Mapping and Scheduling Multi-Level Distillation Circuits for Fault-Tolerant Quantum Architectures." In 2018 51st Annual IEEE/ACM International Symposium on Microarchitecture (MICRO). IEEE, 2018. http://dx.doi.org/10.1109/micro.2018.00072.
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Mastropasqua, Luca, Stefano Campanari, and Jack Brouwer. "Electrochemical Carbon Separation in a SOFC-MCFC Poly-Generation Plant With Near-Zero Emissions." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63483.
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High temperature fuel cells have been studied as a suitable solution for Carbon Capture and Storage (CCS) purposes at a large scale (>100 MW). However, their modularity and high efficiency at small-scale make them an interesting solution for Carbon Capture and Utilisation at the distributed generation scale when coupled to appropriate use of CO2 (i.e., for industrial uses, local production of chemicals etc.). These systems could be used within low carbon micro-grids to power small communities in which multiple power generating units of diverse nature supply multiple products such as electricity, cooling, heating and chemicals (i.e., hydrogen and CO2). The present work explores fully electrochemical power systems capable of producing a highly pure CO2 stream and hydrogen. In particular, the proposed system is based upon integrating a Solid Oxide Fuel Cell (SOFC) with a Molten Carbonate Fuel Cell (MCFC). The use of these high temperature fuel cells has already been separately applied in the past for CCS applications. However, their combined use is yet unexplored. Moreover, both industry and US national laboratories have expressed their interest in this solution. The reference configuration proposed envisions the direct supply of the SOFC anode outlet to a burner which, using the cathode depleted air outlet, completes the oxidation of the unconverted species. The outlet of the burner is then fed to the MCFC cathode inlet which separates the CO2 from the stream. Both the SOFC and MCFC anode inlets are supplied with pre-reformed and desulfurized natural gas. The MCFC anode outlet, which is characterised by a high concentration of CO2, is fed to a CO2 separation line in which a two-stage Water Gas Shift (WGS) reactor and a PSA/membrane system respectively convert the remaining CO into H2 and remove the H2 from the exhaust stream. This has the significant advantage of achieving the required CO2 purity for liquefaction and long-range transportation without requiring the need of cryogenic or distillation plants. Moreover, the highly pure H2 stream can either be sold as transportation fuel or a valuable chemical. Furthermore, different configurations are considered with the final aim of increasing the Carbon Capture Ratio (CCR) and maximising the electrical efficiency. Moreover, the optimal power ratio between SOFC and MCFC stacks is also explored. Complete simulation results are presented, discussing the proposed plant mass and energy balances and showing the most attractive configurations from the point of view of total efficiency and CCR.