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Rozprawy doktorskie na temat „Capture de CO₂”

Autor: Grafiati

Data publikacji: 23 listopada 2024

Data aktualizacji: 31 lipca 2025

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1

Bala, Shashi. "Novel approaches for CO₂ capture." Thesis, University of Leeds, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.713474.

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This thesis is mainly concerned with the study of solvents of relevance for carbon capture and storage (CCS). The current industrial approach relies on amines to capture CO2, however this thesis describes a range of alternative non-amine based solvents, particularly phenols, saturated and unsaturated aliphatic acids, long chain fatty acids, aromatic acids, and β-dicarbonyl compounds (mainly ketones and esters). The CO2 capture capacities of these substrates have been compared with the industrial model substrate (monoethanolamine, MEA). From this study, phenols show 49-90% CO2 capture capacity

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2

Ding, Tao. "Gas hydrates to capture and sequester CO₂." Master's thesis, Mississippi State : Mississippi State University, 2004. http://library.msstate.edu/etd/show.asp?etd=etd-11102004-141404.

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Suri, Rajat. "CO₂ compression for capture-enabled power systems." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/46616.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 2009.<br>Includes bibliographical references (leaves 182-185).<br>The objective of this thesis is to evaluate a new carbon dioxide compression technology - shock compression - applied specifically to capture-enabled power plants. Global warming has increased public interest in carbon capture and sequestration technologies (CCS), but these technologies add significant capital and operating cost at present, which creates a significant barrier to adoption. Carbon dioxide compression technology makes up a high pro

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Lively, Ryan P. "Hollow fiber sorbents for post-combustion CO₂ capture." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/43758.

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As concerns mount about the rise in atmospheric CO₂ concentrations, many different routes to reduce CO₂ emissions have been proposed. Of these, post-combustion CO₂ capture from coal-fired power stations is often the most controversial, as the CO₂ capture system will remove generating capacity from the grid whereas many of the other solutions involve increasing the generating capacity of the grid with low CO₂-emission plants. Despite this, coal-fired power stations represent a major point source for CO₂ emissions, and if a consensus is reached on the need to reduce CO₂ emissions, a low-cost m

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5

Ogbuka, Chidi Premie. "Development of solid adsorbent materials for CO₂capture." Thesis, University of Nottingham, 2013. http://eprints.nottingham.ac.uk/13276/.

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The application of solid adsorbents for gas separation in pre-combustion carbon capture from gasification processes has gained attention in recent times. This is due to the potential of the technology to reduce the overall energy penalty associated with the capture process. However, this requires the development of solid adsorbent materials with large selectivity, large adsorption capacity, fast adsorption kinetics for CO2 coupled with good mechanical strength and thermal stability. In this work, results on CO2 adsorption performance of three different types of adsorbents; a commercial activat

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6

Bollini, Praveen P. "Amine-oxide adsorbents for post-combustion CO₂ capture." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/52908.

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Amine functionalized silicas are promising chemisorbent materials for post-combustion CO₂ capture due to the high density of active sites per unit mass of adsorbent that can be obtained by tuning the synthesis protocol, thus resulting in high equilibrium CO₂ adsorption capacities. However, when compared to physisorbents, they have a few disadvantages. Firstly, oxidative degradation of the amine groups reduces the lifetime of these adsorbent materials. Furthermore, rapid heat release following the reaction between amines and CO₂ results in large local temperature spikes which may adversely affe

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7

Didas, Stephanie Ann. "Structural properties of aminosilica materials for CO₂ capture." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/54020.

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Increased levels of carbon dioxide in the atmosphere are now widely attributed as a leading cause for global climate change. As such, research efforts into the capture and sequestration of CO2 from large point sources (flue gas capture) as well as the ambient atmosphere (air capture) are gaining increased popularity and importance. Supported amine materials have emerged as a promising class of materials for these applications. However, more fundamental research is needed before these materials can be used in a practically relevant process. The following areas are considered critical research n

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8

Li, Jia. "Options for introducing CO₂ capture and capture readiness for coal fired power plants in China." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/6393.

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China has been building at least 50GW of new coal‐fired power plants every year since 2004. Previous carbon capture and storage (CCS) research has mainly focussed on technology improvements or stakeholder opinion surveys, without picturing the overall concerns and barriers for deploying such technology in China. This thesis therefore explores the engineering and policy requirements to implement CCS and CO2 Capture Ready (CCR) in Chinese coal‐fired power plants, key enablers for future deployment. A preliminary study of the Chinese gasification industry shows there are early opportunities to ca

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9

Di, Felice Luca, Claire Courson, Katia Gallucci, et al. "One-step hydrocarbons steam reforming and CO 2 capture." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-192989.

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Di, Felice Luca, Claire Courson, Katia Gallucci, et al. "One-step hydrocarbons steam reforming and CO 2 capture." Diffusion fundamentals 7 (2007) 3, S. 1-2, 2007. https://ul.qucosa.de/id/qucosa%3A14159.

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11

Blamey, John. "Improved performance of CaO-based sorbent for CO₂ capture." Thesis, Imperial College London, 2012. http://hdl.handle.net/10044/1/9650.

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Calcium looping is a CO2 capture technology that is currently being developed on a 1 MWth pilot-scale. It has advantages including the ability to reclaim high-grade heat, the use of a relatively inexpensive, abundant and benign sorbent, and the potential to de-carbonise both power generation and cement manufacture. It makes use of the reversible carbonation of CaO to remove CO2 from a flue gas and provide pure CO2 for compression and storage, in a cyclical process. One aspect that is disadvantageous is the deactivation of CaO-sorbent upon cycling through reactive sintering; it is enhancement o

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12

Huang, Quanzhen. "THERMAL DEGRADATION OF AMINES FOR CO₂ CAPTURE." UKnowledge, 2015. http://uknowledge.uky.edu/chemistry_etds/51.

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In the selection of candidates for CO2 absorption, solvent thermal degradation has become a general concern due to the significant impact on operational cost and the intention to use thermal compression from high temperature stripping to minimize the overall process energy. In this research, the impact of flue gas contaminants on Monoethanolamine (MEA) thermal degradation was investigated at elevated temperatures consistent with those in the CO2 stripper. Nitrite, fly ash, sulfate and thiosulfate were each added to 5.0 M MEA and the contaminant-containing MEA solutions were degraded at 125 °C,

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13

Pandian, Babu Vinod Babu. "High-solids, mixed-matrix hollow fiber sorbents for CO₂ capture." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53435.

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Post-combustion carbon capture, wherein the CO2 produced as a result of coal combustion is trapped at the power plant exhaust, is seen as a bridging technology to reduce CO2 emissions and combat climate change. This capture process will however impose a parasitic load on the power plant and technologies need to be developed to minimize this energy penalty. This research focuses on a technology which uses solid sorbents fashioned into a hollow fiber form that allows water-moderated thermal cycling as a means of trapping CO2 from flue gas. While hollow fiber technology has intrinsic advantages o

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14

Sultan, Dewan Saquib Ishanur. "The capture of CO₂ from process streams using solid sorbents." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708420.

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15

Obhielo, Esgeboria. "Synthesis, characterisation and optimisation of novel adsorbents for CO₂ capture." Thesis, University of Strathclyde, 2015. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=24838.

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In this study, a suite of novel CO₂ capture sorbents were prepared employing three facile synthetic routes: amine assimilation (co-synthesis), wet impregnation and in situ-impregnation synthesis, to develop a range of materials capable of efficiently adsorbing CO₂ while demonstrating their applicability as alternative materials for CO₂ capture from coal and gas fired power plants via post-combustion carbon capture. Prepared sorbents were characterised for individual physical and chemical properties, using, scanning electron microscopy, infrared spectroscopy, thermogravimetric analysis, element

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16

Khurram, Aliza. "Combined CO₂ capture and electrochemical conversion in non-aqueous environments." Thesis, Massachusetts Institute of Technology, 2020. https://hdl.handle.net/1721.1/127053.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, May, 2020<br>Cataloged from the official PDF of thesis.<br>Includes bibliographical references (pages 234-253).<br>Carbon capture, utilization, and storage (CCUS) technologies have a central role to play in mitigating rising CO₂ emissions and enabling sustainable power generation. Most industrially mature CCS technologies based on amine chemisorption are highly energy-intensive, consuming up to 30% of the power generating capacity of the plant in order to thermally regenerate the sorbents for continued

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17

Lucquiaud, Mathieu. "Steam cycle options for capture-ready power plants, retrofits and flexible operation with post-combustion CO₂ capture." Thesis, Imperial College London, 2010. http://hdl.handle.net/10044/1/5942.

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The energy penalty for post‐combustion carbon dioxide capture from fossil‐fired power plants can be greatly reduced ‐ independently of the intrinsic heat of regeneration of the solvent used ‐ by effective thermodynamic integration with the power cycle. Yet expected changes in electricity generation mix and the current immaturity of post‐combustion capture technology are likely to make effective thermodynamic integration throughout the operating life of such plants a challenging objective to achieve because of a requirement for extensive part‐load operation and also for matching to future techn

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18

Li, Hailong. "Thermodynamic properties of CO₂ mixtures and their applications in advanced power cycles with CO₂ capture processes /." Stockholm : Department of chemical engineering and technology, Royal institute of technology, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-9109.

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Li, Fuyue. "Amine-functionalized polymeric hollow fiber sorbents for post-combustion CO₂ capture." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53119.

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Polymeric hollow fiber sorbents were functionalized with amine moieties for improving the carbon dioxide sorption capacity from flue gas to reduce the greenhouse gas emissions from coal-fired power plants. Three different experimental pathways were studied to form the amine-functionalized hollow fiber sorbents. Aminosilane functionalized cellulose acetate (CA) fibers, polyethyleneimine (PEI) functionalized polyamide-imide (PAI, Torlon® fibers and PEI post-infused and functionalized Torlon®-silica fibers were formed. CO₂ equilibrium sorption capacity data were collected by using the pressure de

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20

Archbold, Brad. "Using algae to capture CO₂ and as a feedstock for biofuel." Online pdf file accessible through the World Wide Web, 2007. http://archives.evergreen.edu/masterstheses/Accession86-10MES/Archbold_%20B%20MESThesis%202007.pdf.

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Masnadi-Shirazi, Mohammad Sadegh. "Biomass/fossil fuel co-gasification with and without integrated CO2 capture." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/46917.

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Biomass/fossil fuel co-gasification could be a bridge between energy production based on fossil fuels and energy production based on renewable fuels. In this work, CO₂ co-gasification of switchgrass with coal and fluid coke was conducted in a thermogravimetric analyzer at 800°C. Coal gasification kinetics were inhibited or enhanced, depending on the switchgrass concentration in the mixture: for low K/Al and K/Si molar ratios in the mixture, it seemed that the coal ash sequestrated the biomass potassium needed for Kalsilite (KAlSiO4) formation, and thus, no catalytic effect was observed until t

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22

Binti, Ishak Nisrin Alyani. "Enacting organisational and consumer value capture : a social co-creation perspective." Thesis, Brunel University, 2018. http://bura.brunel.ac.uk/handle/2438/17138.

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The capability of the organisation in capturing customer value of experience (VoE) has led to continuous social interaction and spawned innovative ways to collaborate and co-create with the customers. This notion of reciprocal engagement is referred to as social co-creation. The co-creation paradigm represents value and is referred to as a function of experience other than the product itself. However, there is a critically needs for the organisation to formulate a 'value capture strategy' through the lens of social co-creation. It is evident that the fundamental question of the causal relation

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23

Fisher, James C. II. "The Reduction of CO₂ Emissions Via CO₂ Capture and Solid Oxide Fuel Cells." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1247250147.

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Ghasemian, Langeroudi Elahe. "Quantitative aspects of CO₂-grafted amine interactions in gas-liquid-solid solubility equilibrium : applications to CO₂ capture." Master's thesis, Université Laval, 2010. http://hdl.handle.net/20.500.11794/21467.

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Les effets liés à la présence d'eau liquide sur la capacité d'adsorption de CO₂ par une silice mésoporeuse de type SBA-15 fonctionnalisée au moyen des amines suivantes: aminopropyltrimethoxysilane (APS) et N-(2-aminoéthyl) -3 - (aminopropyl) trimethoxysilane (AEAPS) ont été examinés pour évaluer le potentiel de ce mode de contact dans des laveurs gaz-liquide-solide. Les résultats ont été comparés à la capacité d'adsorption de CO₂ des amines greffées dans des conditions humides et sèches ainsi qu'à la capacité d'absorption de CO₂ dans les systèmes gaz-liquide avec des solutions aqueuses d'aminé

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Wishrojwar, Anitha Suhas. "SYNTHESIS, CHARACTERIZATION AND DEVELOPMENT OF CATALYSTS FOR CO₂ CAPTURE." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/42.

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Fossil fuel and advanced industrialization techniques contribute to global warming through emissions of greenhouse gases such as CO2. In order to mitigate climate change, there is a desperate need to reduce CO2 emissions from different sources. CO2 capture and sequestration (CCS) play an important role in these reductions. Naturally occurring enzymes, e.g., carbonic anhydrase (CA), can catalyze these reactions in living systems. Much effort has been focused on complexes of zinc with ligands such as teta, cyclen and tripodal ligands including BIMA and Trispyrazolylborates. These complexes have

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Gallucci, Katia, Ferdinando Paolini, Felice Luca Di, Claire Courson, Pier Ugo Foscolo, and Alain Kiennemann. "SEM analysis application to study CO 2 capture by means of dolomite." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-193012.

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Gallucci, Katia, Ferdinando Paolini, Felice Luca Di, Claire Courson, Pier Ugo Foscolo, and Alain Kiennemann. "SEM analysis application to study CO 2 capture by means of dolomite." Diffusion fundamentals 7 (2007) 5, S. 1-11, 2007. https://ul.qucosa.de/id/qucosa%3A14163.

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Fei, Yang. "Computational fluid dynamics and process co-simulation applied to carbon capture technologies." Thesis, University of Leeds, 2015. http://etheses.whiterose.ac.uk/11521/.

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In the energy supply sector, coal will still remain as a dominate role in the foreseeable future because: it is comparatively cheap and widely distributed around the world and more importantly, carbon capture and storage (CCS) technologies make it possible to depend on coal with almost zero emission of carbon dioxide (CO2). CCS involves capturing and purifying CO2 from the emission source and then sequestering it safely and securely to avoid emission to the atmosphere. Both the post-combustion and the oxy-fuel technologies can be applied to existing power plants for CCS retrofit. Accurate pred

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Chowdhury, Mohammad. "Effects of brown coal fly ash on 30% monoethanolamine CO₂ capture systems." Thesis, Federation University Australia, 2019. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/171010.

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Accumulation of fly ash during post-combustion capture (PCC) of CO2 is an emerging concern. This work assesses concerns that soluble ash components (e.g. Na, Ca, Mg) increase conductivity of amine systems increasing corrosion rates, and decreasing CO2 capture e ciency; slightly soluble metals ions (e.g. Fe) may catalyse amine oxidation; and insoluble ash components cause erosion and blockages in the PCC plants as well as providing catalytic surfaces. Loy Yang brown-coal y ashes (using XRD, SEM, EDS and ICP-MS) are rst characterised and separated into soluble, insoluble and char fractions. The

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Hassan, S. M. Nazmul. "Techno-Economic Study of CO₂ Capture Process for Cement Plants." Thesis, University of Waterloo, 2005. http://hdl.handle.net/10012/925.

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Carbon dioxide is considered to be the major source of GHG responsible for global warming; man-made CO<sub>2</sub> contributes approximately 63. 5% to all greenhouse gases. The cement industry is responsible for approximately 5% of global anthropogenic carbon dioxide emissions emitting nearly 900 kg of CO<sub>2</sub> for every 1000 kg of cement produced! Amine absorption processes in particular the monoethanolamine (MEA) based process, is considered to be a viable technology for capturing CO<sub>2</sub> from low-pressure flue gas streams because of its fast reaction rate with CO<sub>2</sub

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Kahr, Juergen. "Investigation of metal-organic frameworks as adsorbents for CO₂ capture from flue gas." Thesis, University of St Andrews, 2014. http://hdl.handle.net/10023/7045.

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The post-synthetic modification of CPO-27(Mg) by introducing nickel cations into the framework is described. A combination of surface sensitive XPS analysis, synchrotron powder X-ray diffraction and selected area and bulk EDX measurements revealed the distribution of Ni²⁺ throughout the crystal with the highest concentration towards the external surface forming a nickel-rich rim. By adding nickel acetate and chloride salts in combination with a weak acid, Ni²⁺ contents of up to 67% for the bulk material were achieved via a one-pot preparative procedure. A combined mechanism of overgrowth and i

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Hong, Jongsup. "Techno-economic analysis of pressurized oxy-fuel combustion power cycle for CO₂ capture." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/50567.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.<br>Includes bibliographical references (leaves 124-127).<br>Growing concerns over greenhouse gas emissions have driven extensive research into new power generation cycles that enable carbon dioxide capture and sequestration. In this regard, oxy-fuel combustion is a promising new technology for capturing carbon dioxide in power generation systems utilizing hydrocarbon fuels. Combustion of a fuel in an environment of oxygen and recycled combustion gases yields flue gases consisting predominantly of carbo

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Hong, Jongsup. "Numerical simulations of ion transport membrane oxy-fuel reactors for CO₂ capture applications." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/81700.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 185-190).<br>Numerical simulations were performed to investigate the key features of oxygen permeation and hydrocarbon conversion in ion transport membrane (ITM) reactors. ITM reactors have been suggested as a novel technology to enable air separation and fuel conversion to take place simultaneously in a single unit. Possessing the mixed ionic and electronic conductivity, perovskite membranes or ion transport membrane

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Lassagne, Olivier. "Analyse techno-économique de l'implantation de la capture du CO₂ dans une aluminerie." Master's thesis, Université Laval, 2013. http://hdl.handle.net/20.500.11794/24766.

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Comme de nombreuses industries, les alumineries se retrouvent face au nouveau défi de réduction des émissions de gaz à effet de serre (GES). La capture du CO₂ émis par les cuves d'électrolyse permettrait de réduire drastiquement les GES sans nécessiter des changements importants de la technologie actuelle de production. Ce travail présente deux analyses technico-économiques de la capture du CO₂ émis par les cuves d'électrolyse afin d'en évaluer la faisabilité. La première étude vérifie si la capture par la monoethanolamine (MEA), une alkano amine primaire couramment employée pour la séparation

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Nourouzilavasani, Samira. "Technico-economic evaluation of bitumen-coke integrated gasification combined cycle with CO₂ capture." Master's thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25542/25542.pdf.

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Miocic, Johannes Marijan. "A study of natural CO₂ reservoirs : mechanisms and pathways for leakage and implications for geologically stored CO₂." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/17881.

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Carbon Capture and Storage (CCS) is a suite of technologies available to directly reduce carbon dioxide (CO2) emissions to the atmosphere from fossil fuelled power plants and large industrial point sources. For a safe deployment of CCS it is important that CO2 injected into deep geological formations does not migrate out of the storage site. Characterising and understanding possible migration mechanisms and pathways along which migration may occur is therefore crucial to ensure secure engineered storage of anthropogenic CO2. In this thesis naturally occurring CO2 accumulations in the subsurfac

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Zhu, Yibing. "CO₂ Adsorption on amine-coated elastomers: an IR study." University of Akron / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=akron1522426264764055.

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Occhineri, Lorenzo. "Technical and economic assessments of CO₂ capture processes in power plants." Thesis, Mälardalen University, School of Sustainable Development of Society and Technology, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-4705.

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Bhaduri, Gaurav Ashok. "Catalytic enhancement of hydration of CO₂ using nickel nanoparticles for carbon capture and storage." Thesis, University of Newcastle upon Tyne, 2018. http://hdl.handle.net/10443/4135.

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The capture and storage of atmospheric CO2 as mineral carbonates, is one of the safest ways to combat global warming. The slow CO2 hydration rate is one limitation of the mineralization process. The current study presents the discovery of nickel nanoparticles (NiNPs) as a catalyst for enhancing the rate of CO2 hydration for mineralization carbon capture and storage. The NiNPs at an optimum concentration of 30 ppm, increased the saturation concentration by three folds as compared with deionized water alone. The mechanism of the reaction on NiNPs surface is also proposed. The kinetics of catalys

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Hasib-ur-Rahman, Muhammad. "CO₂ capture using alkanolamine/room-temperature ionic liquid blends : absorption, regeneration, and corrosion aspects." Doctoral thesis, Université Laval, 2013. http://hdl.handle.net/20.500.11794/24209.

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Le réchauffement climatique, résultant essentiellement des émissions anthropiques de dioxyde de carbone, demeure un sujet de grande préoccupation. Le captage et la séquestration du dioxyde de carbone est une solution viable permettant de prévoir une baisse des émissions de CO2 issues des importantes sources ponctuelles qui impliquent la combustion des carburants fossiles. Dans cette perspective, les systèmes aqueux d’alcanolamines offrent une solution prometteuse à court terme pour la capture du CO2 dans les installations de production d'électricité. Cependant, ces systèmes sont confrontés à d

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Koumpouras, Georgios. "Mathematical modelling of a low-temperature hydrogen production process with in situ CO₂ capture." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/8211.

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Tarun, Cynthia. "Techno-Economic Study of CO₂ Capture from Natural Gas Based Hydrogen Plants." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/2837.

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As reserves of conventional crude oil are depleted, there is a growing need to develop unconventional oils such as heavy oil and bitumen from oil sands. In terms of recoverable oil, Canadian oil sands are considered to be the second largest oil reserves in the world. However, the upgrading of bitumen from oil sands to synthetic crude oil (SCO) requires nearly ten times more hydrogen (H<sub>2</sub>) than the conventional crude oils. The current H<sub>2</sub> demand for oil sands operations is met mostly by steam reforming of natural gas. With the future expansion of oil sands operat

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Lacroix, Olivier. "CO₂ capture using immobilized carbonic anhydrase in Robinson-Mahoney basket and packed absorption column reactors." Master's thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25183/25183.pdf.

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Tong, Zi Tong. "CO₂ facilitated transport membranes for hydrogen purification and flue gas carbon capture." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu150051302573791.

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Hoteit, Ali. "Etude expérientale des mécanismes de capture de Co² par cycle calcium en lit fluidisé circulant." Mulhouse, 2006. http://www.theses.fr/2006MULH0832.

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Les travaux menés dans cette thèse en partenariat avec le département R&D d'ALSTOM POWER BOILERS, CEMEX et l'ADEME, concernent l'étude expérimentale de différents phénomènes associés à la capture de CO2 par la chaux en lit fluidisé circulant. La taille des particules, la température et la concentration en CO2 du milieu ont une influence sur la réaction de calcination du calcaire. La réaction de carbonatation de la chaux formée n'est pas totale. Au cours des cycles successifs de calcination/carbonatation, les taux de carbonatation obtenus avec la chaux hydratée sont toujours plus élevés que

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Zhang, Wei. "Simulation of Solid Oxide Fuel Cell - Based Power Generation Processes with CO₂ Capture." Thesis, University of Waterloo, 2006. http://hdl.handle.net/10012/946.

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The Solid Oxide Fuel Cell (SOFC) is a promising technology for electricity generation. It converts the chemical energy of the fuel gas directly to electricity energy and therefore, very high electrical efficiencies can be achieved. The high operating temperature of the SOFC also provides excellent possibilities for cogeneration applications. In addition to producing power very efficiently, the SOFC has the potential to concentrate CO<sub>2</sub> with a minimum of an overall efficiency loss. Concentration of CO<sub>2</sub> is a desirable feature of a power generation process so that th

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Iloeje, Chukwunwike Ogbonnia. "Rotary (redox) reactor-based oxy combustion chemical looping power cycles for CO₂ capture : analysis and optimization." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/104249.

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Thesis: Ph. D., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 224-229).<br>A number of CO₂ capture-enabled power generation technologies have been proposed to address the negative environmental impact of CO₂ emission. An important barrier to adopting these technologies is the associated energy and economic penalties. Chemical-looping (CLC) is an oxycombustion technology that can significantly lower such penalties, utilizing a redox process to eliminate the need for an air

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Long, Henry A. III. "Analysis of Biomass/Coal Co-Gasification for Integrated Gasification Combined Cycle (IGCC) Systems with Carbon Capture." ScholarWorks@UNO, 2011. http://scholarworks.uno.edu/td/1371.

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In recent years, Integrated Gasification Combined Cycle Technology (IGCC) has become more common in clean coal power operations with carbon capture and sequestration (CCS). Great efforts have been spent on investigating ways to improve the efficiency, reduce costs, and further reduce greenhouse gas emissions. This study focuses on investigating two approaches to achieve these goals. First, replace the subcritical Rankine steam cycle with a supercritical steam cycle. Second, add different amounts of biomass as feedstock to reduce emissions. Finally, implement several types of CCS, including swe

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Silva, Mojica Ernesto. "CO₂ and SO₂ Capture by Aromatic and Aliphatic Amine Sorbents." University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1312042029.

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Kulkarni, Ambarish R. "Multiscale modeling of nanoporous materials for adsorptive separations." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/53053.

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The detrimental effects of rising CO₂ levels on the global climate have made carbon abatement technologies one of the most widely researched areas of recent times. In this thesis, we first present a techno-economic analysis of a novel approach to directly capture CO₂ from air (Air Capture) using highly selective adsorbents. Our process modeling calculations suggest that the monetary cost of Air Capture can be reduced significantly by identifying adsorbents that have high capacities and optimum heats of adsorption. The search for the best performing material is not limited to Air Capture, but i

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