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Tesis sobre el tema "Adsorption of CO2"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 20 de febrero de 2023

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1

Bogahawatta, Vimarsha. "CO2 Adsorption on Polyethylenimine-Impregnated Lamellar Silica." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41557.

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The increasingly stringent environmental regulations worldwide demand the use of efficient methods for air purification. Moreover, the alarming effect of greenhouse gases on the world climate requires the removal and sequestration of large quantities of anthropogenic carbon dioxide (CO2). This work is contributed towards the development of efficient, amine-containing, lamellar structured silica adsorbents for CO2 removal. Seven different materials were prepared by impregnation of various amounts of PEI, over as synthesized, or partially extracted or calcined lamellar silica. Materials were cha
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2

Westman, Snorre Foss. "Power plant with CO2 capture based on adsorption." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for energi- og prosessteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-18504.

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A dynamic one-dimensional homogeneous model for a packed bed sorption-enhanced water-gas shift (SEWGS) reactor has been developed, describing the non-isothermal, non-adiabatic and non-isobaric operation of this type of reactor. The model was developed to describe a SEWGS reactor designed to work under operating conditions and syngas feeds encountered in a coal-fed Integrated Gasification Combined Cycle power plant utilizing an oxygen-fed gasifier. Different from previous integration designs reported in literature, the feasibility of leaving out the conventional high-temperature water-gas shift
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3

Ertan, Aslı Özkan Fehime S. "CO2, N2 and ar adsorption on modified zeolites/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/kimyamuh/T000295.pdf.

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4

Liu, Jing. "Multilayered PEI-based Films for CO2 Adsorption and Diffusion." University of Akron / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1367839488.

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5

Abbassi, Maria. "Selective CO Adsorption Separation from CO2 via Cu-modified Adsorbents." Thesis, Université d'Ottawa / University of Ottawa, 2021. http://hdl.handle.net/10393/42151.

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CO2 capture and conversion appears to be a prominent solution to mitigate greenhouse gas emissions (GHG) and global warming issue. Among different CO2 conversion approaches, CO2 hydrogenation via reverse water gas shift (RWGS) reaction is one of the most promising technology to convert CO2 to CO. Subsequently, CO is transformed to value added chemicals or liquid fuels. To improve the overall CO2 conversion for RWGS reaction, product separation and recycling is being proposed. In this research, adsorption separation technology has been explored to selectively separate CO from CO2 in RWGS
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6

Rada, Zana Hassan. "Adsorption of gases (CO2, CH4) using novel porous materials (MOFs)." Thesis, Curtin University, 2016. http://hdl.handle.net/20.500.11937/1628.

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This research focuses on the synthesis, characterization, and capability of the metal organic frameworks (MOFs) as a candidate adsorbent for storage and separation of greenhouses gases. The performance and effectiveness of various synthesized MOFs were explored for the selectivity of CO2/N2 and CO2/CH4. The research contributes to the advances in synthesis of different MOFs and their application for gas uptake. This has potential advantages than other materials for future environmental science and materials applications.
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7

Wörmeyer, Kai [Verfasser]. "Aminofunctionalised Aerogels for CO2 Adsorption at Low Partial Pressures / Kai Wörmeyer." München : Verlag Dr. Hut, 2014. http://d-nb.info/1052375480/34.

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8

Oreggioni, Gabriel David. "Design and simulation of pressure swing adsorption cycles for CO2 capture." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/16198.

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Carbon capture and storage technologies (CCS) are expected to play a key role in the future energy matrix. Different gas separation processes are under investigation with the purpose of becoming a more economical alternative than solvent based post combustion configurations. Previous works have proved that pressure swing adsorption (PSA) cycles manage to reach similar carbon capture targets than conventional amine process but with approx. a 50% lower specific energy consumption when they are applied at lab scale. These encouraging results suggest that research must be undertaken to study the f
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9

Meghani, Bishan. "Moving bed temperature swing adsorption processes for post-combustion CO2 capture." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/29140/.

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Due to high regeneration energy demands for amine absorption processes for post-combustion CO2 capture, alternative technologies such as adsorption processes using solid adsorbents have been considered. Other practical issues such as corrosion of equipment and loss of solvent can be avoided with adsorption processes. Fixed bed adsorption processes, in which CO2 adsorption and adsorbent regeneration are performed successively in a vessel packed with adsorbent, are the most common adsorption processes. However, in fixed bed temperature swing adsorption (TSA) processes, large columns and long hea
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10

Ezeh, Collins Izuchukwu. "Novel materials for CO2 adsorption and reduction to methanol via hydrogenation." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/48570/.

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Sorption-enhanced catalysts are highly favored to improve the synthesis of methanol by hydrogenation process. This requires the development of selective catalysts and CO2 adsorbents that are sufficiently stable to tolerate cyclic regeneration during operation. The present work focuses on the assessment of the adsorption performance of novel layered double hydroxides acting as supports for copper based catalysts in the reduction of CO2 to methanol. Emphasis is placed on the stability and capacity of hybrids prepared using various preparation routes in order to optimize the CO2 uptake and conver
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11

Galinsky, Matthias, and Cornelia Breitkopf. "Diffusion of CO2 in 5Å-zeolites by Frequency Response – impact of assumed adsorption mechanisms: Diffusion of CO2 in 5Å-zeolites by Frequency Response –impact of assumed adsorption mechanisms." Diffusion fundamentals 24 (2015) 16, S. 1, 2015. https://ul.qucosa.de/id/qucosa%3A14530.

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12

Liao, Meng. "Modeling of fluid flows and heat transfer with interface effects, from molecular interaction to porous media." Thesis, Paris Est, 2018. http://www.theses.fr/2018PESC1054/document.

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Les objectifs de la thèse sont d'étudier le transport de fluide et le transfert de chaleur dans les pores micro et nanométriques. Les expériences et les simulations ont révélé des preuves de l'augmentation du flux provoquée par la vitesse de glissement à la paroi solide. D'autre part, la résistance thermique finie à l'interface fluide-solide est responsable de la différence de température des deux phases. Ces deux phénomènes d'interface peuvent avoir un impact considérable sur la perméabilité et la diffusivité thermique des milieux poreux constitués de micro et nanopores. La contribution se co
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13

Venet, Saphir. "Stockage du CO2 et séparation CO2/CH4 par des matériaux de silice à porosité et fonctionnalité contrôlées : étude expérimentale et modélisation de dynamique moléculaire." Thesis, Pau, 2018. http://www.theses.fr/2018PAUU3027/document.

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Ce travail vise à évaluer les performances de matériaux à base de silice et à rationaliser leur synthèse en fonction des propriétés d’adsorption recherchées (capacité et/ou sélectivité) en combinant des approches expérimentales et la modélisation de dynamique moléculaire. Ces matériaux devaient idéalement présenter une capacité d’adsorption CO2 mais également une sélectivité CO2 /CH4 élevées. Les différentes étapes de ce travail ont été :- la synthèse et la fonctionnalisation des matériaux de silice,- leur caractérisation texturale et chimique,- la détermination des capacités d’adsorption du C
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14

Garcia, Edder. "CO2 adsorption from synthesis gas mixtures : understanding selectivity and capacity of new adsorbents." Thesis, Lyon 1, 2012. http://www.theses.fr/2012LYO10195.

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Le développement de nouveaux adsorbants écologiques et efficaces pour la séparation du CO2 nécessite un lien quantitatif entre les propriétés des adsorbants et ses propriétés d'adsorption. Dans ce travail, nous développons une méthodologie qui prend en compte explicitement les propriétés des adsorbants, tels que le diamètre de pore, la densité, la forme de pore et la composition chimique. L'objectif est d'établir des corrélations quantitatives entre les paramètres mentionnés ci-dessus et les forces qui gouvernent la physisorption dans les milieux poreux, c'est à dire les interactions van der W
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15

Drese, Jeffrey Hayden. "The design, synthesis, and characterization of aminosilica adsorbents for CO2 capture from dilute sources." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/42829.

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The use of novel hyperbranched aminosilica (HAS) materials created through the ring-opening polymerization of aziridine from mesoporous silica supports was proposed for the adsorption of CO2 from dilute sources. The limits of the adsorptive performance of these adsorbents were investigated via the preparation of sets of materials with a range of aminopolymer loadings on several different silica supports with different pore space characteristics. Relationships were determined between the materials' amine loadings and the CO2 adsorption performance. Adsorbents with substantial remaining pore vol
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16

Alhwaige, Almahdi A. "NOVEL BIOBASED CHITOSAN/POLYBENZOXAZINE CROSS-LINKED POLYMERS AND ADVANCED CARBON AEROGELS FOR CO2 ADSORPTION." Case Western Reserve University School of Graduate Studies / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=case1396437860.

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17

Ficicilar, Berker. "Carbon Dioxide Removal In Steam Reforming: Adsorption Of Co2 Onto Hydrotalcite And Activated Soda." Master's thesis, METU, 2004. http://etd.lib.metu.edu.tr/upload/12605346/index.pdf.

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Conversion of natural gas and other light hydrocarbons via steam reforming is currently the major process for hydrogen production. However, conventional hydrogen production technologies are not cost effective and therefore, cost is the biggest impediment to use hydrogen in fuel cell applications. In order to optimize and overcome cost problems in hydrogen production, sorption and membrane enhanced reaction processes are the two novel technologies for in situ operation of reforming and removal of carbon dioxide. Adsorption of carbon dioxide onto activated hydrotalcite and activated soda, obtai
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18

Galinsky, Matthias, and Cornelia Breitkopf. "Diffusion of CO2 in 5Å-zeolites by Frequency Response – impact of assumed adsorption mechanisms." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-198155.

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19

Chronopoulos, Theodore. "Microwave Swing Adsorption for post-combustion CO2 capture from flue gases using solid sorbents." Thesis, Heriot-Watt University, 2016. http://hdl.handle.net/10399/3199.

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In recent years, there has been an increasing global interest in carbon dioxide capture and storage (CCS) as an important technology for climate change mitigation. However, improved technologies for the CO2 capture process that could possibly lead CCS to be highly competitive against the renewable energy market, are necessary. The evaluation of a CO2 capture system is often driven by energy demands and in adsorption technology this energy is particularly required for the desorption step. As a result, efficient regeneration systems ensuring multiple re-use of adsorbent materials, while minimizi
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20

Wang, Sihan. "Preparation And Modification Of Amine-Functionalized Solid Sorbents For CO2 Adsorption And SO2 Resistance." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1460413002.

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21

Muvumbu, Jean-Luc Mukaba. "Cation-exchanged zeolites-A prepared from South African fly ash feedstock for CO2 adsorption." University of the Western Cape, 2015. http://hdl.handle.net/11394/4699.

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>Magister Scientiae - MSc<br>In South Africa coal combustion constitutes up to 90 % of the country’s energy need. This coal combustion activity is known to contribute to the amount of about 40 % of the total CO2 atmospheric emissions worldwide that are responsible for global warming effects. In addition burning of coal generates a large quantity of fly ash which creates environmental pollution since only a small portion of it is currently used in some applications. In order, on one hand to mitigate and sequester CO2 and on the other hand to reprocess fly ash and reuse it, this study focuses on
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22

Mirabella, Francesca. "Water and CO2 Adsorption on Magnetite Surfaces: a Combined Molecular Beam and IRAS Study." Doctoral thesis, Humboldt-Universität zu Berlin, 2018. http://dx.doi.org/10.18452/19331.

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Die Wechselwirkung von Wasser und CO2 mit Oxidoberflächen ist vor allem ein bedeutsames Thema für Umweltnaturwissenschaftler. Der Gebrauch von Wasser als Wasserstoff-Ressource für die Reduktion/Hydrierung von CO2 würde zu einer Reduktion der CO2-Emmissionen in der Atmosphäre führen. Trotz einiger Fortschritte in diesem Bereich sind weitere grundlegende Studien notwendig, um die Wechselwirkung von Wasser und CO2 mit Metalloxidoberflächen zu verstehen und darauf aufbauend eine rationale Gestaltung Katalyse-Prozesse zu ermöglichen. Die vorliegende Arbeit präsentiert grundlegende Studien der Adso
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23

Ravon, Ugo. "L'élaboration de nouveaux matériaux de type MOFs, pour le captage du CO2 et l'alkylation de composés aromatiques." Phd thesis, Université Claude Bernard - Lyon I, 2010. http://tel.archives-ouvertes.fr/tel-00817254.

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Cette thèse s'inscrit dans un projet Européen TOPCOMBI de 22 partenaires. Plus spécifiquement, ce travail estle résultat d'une collaboration entre ENI (Italie), ITQ (Espagne), Repsol (Espagne) et IRCELYON (France).Ce travail est composé de 2 thématiques différentes dont les améliorations peuvent s'obtenir en trouvant denouveaux matériaux adaptés aux besoins.Les demandes énergétiques mondiales sont et seront en constante hausse ces prochaines années. Dans l'optiquede pallier à ce besoin, de nouvelles ressources doivent être trouvées et d'autres optimisées. Les énergies fossiles fontparties des
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24

Lalitha, Anusha. "Modelling of MOF/Graphene oxide composites and their performances for CO2 capture." Thesis, Montpellier, 2020. http://www.theses.fr/2020MONTS003.

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La problématique du réchauffement de la planète causé par l’émission de gaz à effet de serre est actuellement un enjeu sociétal majeur. La capture de CO2 par l’utilisation de matériaux poreux apparait comme une solution viable. Des composites construits à partir de l’assemblage d’oxyde de graphène (GO) et de matériaux hybrides poreux de type MOFs ont récemment été proposés comme des candidats prometteurs pour l’adsorption sélective du CO2 vis-à-vis d’autres gaz, comme N2 et CH4. Dans cette thèse, une attention particulière a été portée à la construction de modèles structuraux pour le GO incorp
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25

Marszewska, Jowita E. "Development of microporosity in carbons for carbon dioxide adsorption." Kent State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=kent1492043634249216.

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26

Chihara, Kazuyuki, Shingo Ito, Hideaki Nagashima, Mai Hikita, and Ryota Suzuki. "Adsorption of organics on MSC5A in supercritical CO2, chromatographic measurements & stop & go simulation." Diffusion fundamentals 16 (2011) 41, S. 1-2, 2011. https://ul.qucosa.de/id/qucosa%3A13776.

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27

Zhai, Yuxin. "Spectroscopic Evaluation of the CO2 Adsorption Properties on Amine Functionalized Polyvinyl Alcohol and Silica Sorbents." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1397665897.

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28

Chihara, Kazuyuki, Shingo Ito, Hideaki Nagashima, Mai Hikita, and Ryota Suzuki. "Adsorption of organics on MSC5A in supercritical CO2, chromatographic measurements & stop & go simulation." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-185005.

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29

Muschi, Mégane. "Composites à base de metal-organic frameworks pour la capture du CO2." Electronic Thesis or Diss., Paris Sciences et Lettres (ComUE), 2019. https://pastel.hal.science/tel-03003433.

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Pour faire face au réchauffement climatique, la capture du CO2 anthropogénique apparaît comme une solution indispensable étant donné l’utilisation toujours prédominante d’énergies fossiles. Pour y parvenir, de nombreuses solutions sont à l’étude, dont l’utilisation d’adsorbants solides. Parmi ceux-ci, les metal-organic frameworks (MOFs) offrent des propriétés de choix comme leur bonne affinité pour ce gaz. Dans les procédés industriels, une fois le CO2 adsorbé, il est nécessaire de régénérer le matériau pour rendre le procédé économiquement viable. Cette étape de régénération est réalisée par
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30

Brochard, Laurent. "Poromechanics and adsorption : application to coal swelling during carbon geological storage." Thesis, Paris Est, 2011. http://www.theses.fr/2011PEST1067/document.

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Le stockage géologique du carbone dans les veines de charbon est une solution transitoire pour lutter contre le réchauffement climatique. La faisabilité de ce stockage à un coût abordable reste incertaine, en particulier parce que l'injection de dioxide de carbone dans les veines de charbon est lente. Les projets pilotes ont montré que la perméabilité du réservoir diminue lors de l'injection, suite au gonflement du charbon induit par l'adsorption préférentielle du dioxyde de carbone par rapport au méthane présent naturellement. Ce mémoire de thèse est consacré à l'étude de ce gonflement. Un pr
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31

Abdollahi, Farhang. "Gas Separation by Adsorption in Order to Increase CO2 Conversion to CO via Reverse Water Gas Shift (RWGS) Reaction." Thèse, Université d'Ottawa / University of Ottawa, 2013. http://hdl.handle.net/10393/23993.

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In this research project, adsorption is considered in conjunction with the reverse water gas shift reaction in order to convert CO2 to CO for synthetic fuel production. If the CO2 for this process can be captured from high emitting industries it can be a very good alternative for reduced fossil fuel consumption and GHG emission mitigation. CO as an active gas could be used in Fischer-Tropsch process to produce conventional fuels. Literature review and process simulation were carried out in order to determine the best operating conditions for reverse water gas shift (RWGS) reaction. Increasing
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32

Orsikowsky, Sánchez Alejandro. "Propriétés d'adsorption de différents substrats microporeux à la séparation de gaz modélisation, caractérisation et méthodologie de sélection." Thesis, Pau, 2019. http://www.theses.fr/2019PAUU3037.

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L'objectif de cette thèse est de caractériser et modéliser l'adsorption de gaz (dioxyde de carbone, méthane et azote) sur un adsorbant donné et d’extrapoler les résultats obtenus au comportement macroscopique d'un mélange gazeux dans un procédé d’adsorption industriel afin de mieux comprendre les phénomènes liant la structure des adsorbants à la performance du procédé. Puisque le développement de la méthodologie nécessite la description des mécanismes d’adsorption, il a été décidé de démarrer l’étude avec la famille d’adsorbants la mieux connue et la plus répandue dans l’industrie du fait de s
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33

Gao, Weihong. "Adsorption of supercritical carbon dioxide on microporous adsorbents experiment and simulation /." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1114617964.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xii, 115 p.; also includes graphics. Includes bibliographical references (p. 107-115). Available online via OhioLINK's ETD Center
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34

Lima, Adriano Erique de Oliveira. "Estudo da captura de CO2 utilizando adsorventes modificados via simulaÃÃo molecular." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=8490.

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nÃo hÃ<br>Os altos nÃveis de emissÃo de CO2 neste Ãltimo sÃculo tÃm gerado alerta e preocupaÃÃo Ãs autoridades a nÃvel mundial. Incentivos para desenvolver tecnologias de captura e armazenamento de CO2 ganham destaque nesse cenÃrio. Dentre as alternativas viÃveis para captura do referido gÃs està o processo de adsorÃÃo. A literatura à vasta nos estudos experimentais de adsorÃÃo de CO2 em diversos materiais impregnados, entretanto poucos trabalhos se dedicam ao entendimento dos fenÃmenos em nÃvel atÃmico. O presente estudo objetiva investigar a adsorÃÃo de CO2 em faujasitas do tipo X e carbonos
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35

Mirabella, Francesca [Verfasser]. "Water and CO2 Adsorption on Magnetite Surfaces: a Combined Molecular Beam and IRAS Study / Francesca Mirabella." Berlin : Humboldt-Universität zu Berlin, 2018. http://d-nb.info/1185579338/34.

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36

Silva, Francisco Wilton Miranda da. "Microcalorimetria de adsorÃÃo aplicada à caracterizaÃÃo de adsorventes para a captura de CO2." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=7102.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>As emissÃes de gases poluentes devido à queima de combustÃveis fÃsseis sÃo as principais fontes emissoras de gases, tais como o CO2, que causam o efeito estufa. Neste Ãmbito, a remoÃÃo de CO2 por adsorÃÃo tem sido estudada como uma alternativa para atenuar os efeitos ao ambiente. Este estudo apresenta o projeto, montagem e validaÃÃo experimental de um sistema microcalorimÃtrico de adsorÃÃo para mediÃÃes simultÃneas de isotermas e calores de adsorÃÃo aplicados à caracterizaÃÃo de materiais adsorventes. A metodologia experimental div
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37

Debost, Maxime. "Synthèse et étude structurale de nanozeolites à petits micropores pour la capture du CO2." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC232.

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L’objectif de ce travail consiste à préparer des zéolithes à petits micropores en utilisant une voie de synthèse « verte ». Pour cela, il a été choisi de synthétiser directement des nanocristaux de zéolithe CHA et RHO sans agent organique structurant, avec un rapport Si/Al le plus adéquat pour la séparation du CO2 du CH4. La réduction de la taille des cristaux leur confère une meilleure stabilité et augmente la surface d’échange entre le matériau et les gaz. La première partie concerne l’élaboration d’une nouvelle voie de synthèse. Des nanocristaux compris entre 30 et 200 nm avec un rapport Si
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38

Miller, Duane D. "In Situ Infrared Study of G-S/L-S Adsorption and Photocatalytic Processes." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1248780285.

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39

Huang, Jing. "Functional Polymers Containing Semi-Rigid Alternating Sequences." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/89884.

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Alternating copolymers represent a special class of copolymers in which the two comonomers copolymerize in a regular alternating sequence along the polymer chain. Of particular interest in our group are the stilbene-maleic anhydride/maleimide alternating copolymers. These copolymers possess sterically congested backbones and precisely placed functional groups arising from the strictly alternating copolymerization. The research in this dissertation is focused on the synthesis, characterization, and potential application of functionalized copolymers that contain semi-rigid alternating copolymer
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40

Benoit, Virginie. "Relation entre structure et texture de matériaux poreux et l'évaluation de leurs propriétés de piégeage du CO2." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0635/document.

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Les Membranes à Matrices Mixtes (MMM’s) sont des matériaux prometteurs pour la capture de CO2 en comparaison aux technologies actuelles telles que l’absorption par solvants aminés (monoéthanolamine). Les ‘Metal-Organic Frameworks’ (MOFs) sont des matériaux poreux cristallins envisagés pour être intégrés sous forme de nanoparticules aux polymères des MMM’s. Ils résultent de la combinaison de nœuds métalliques et de ligands organiques pour former des structures tridimensionnelle (3D) organisées. Ils possèdent divers avantages : des aires spécifiques et des volumes poreux élevés, des tailles de p
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41

Peixoto, Hugo Rocha. "Modeling of CO2 separation in post-combustion processes by PSA." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=14096.

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CoordenaÃÃo de AperfeÃoamento de Pessoal de NÃvel Superior<br>Adsorption processes involving carbon dioxide (CO2) capture and sequestration have been objects of different studies. A typical problem is the separation of CO2 from fuel gases emitted in power plants in order to mitigate the global warming effects. Recently, Pressure Swing Adsorption (PSA) technology is being applied to this separation. However, design and analysis of adsorption processes are a difficult task due to the large number of parameters involved. This work studies the dynamics of this separation in activated carbons C141
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Fiandaca, G. "A multi-criteria design framework for the synthesis of complex pressure swing adsorption cycles for CO2 capture." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/19300/.

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Pressure Swing Adsorption (PSA) is the most efficient option for middle scale separation processes. PSA is a cyclic process whose main steps are adsorption, at high pressure, and regeneration of the adsorbent, at low pressure. The design of PSA cycles is still mainly approached experimentally due to the computational challenges posed by the complexity of the simulation and by the need to detect the performance at cyclic steady state (CSS). Automated tools for the design of PSA processes are desirable to allow a better understanding of the the complex relationship between the performance and th
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Beck, J. H. "Efficient targeted optimisation for the design of pressure swing adsorption systems for CO2 capture in power plants." Thesis, University College London (University of London), 2014. http://discovery.ucl.ac.uk/1429983/.

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Pressure swing adsorption (PSA) is a cyclic adsorption process for gas separation and purification, and can be used in a variety of industrial applications, for example, hydrogen purification and dehydration. PSA is, due to its low operational cost and its ability to efficiently separate CO2 from flue gas, a promising candidate for post-combustion carbon capture in power plants, which is an important link in the Carbon Capture and Storage technology chain. PSA offers many design possibilities, but to optimise the performance of a PSA system over a wide range of design choices, by experimental
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44

Wilson, Sean. "Adsorption Separation of CO2 in Low Concentrations for Applications in Direct Air Capture and Excimer Gas Separation." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/40561.

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The overall objective of this thesis is to evaluate the fundamentals of current low concentration CO2 separation technologies and to provide an alternate method using adsorption technology with existing as well as new adsorbents. Two different applications for the adsorption of CO2 are explored; Direct Air Capture (DAC) and excimer gas purification. The investigation of aerogels as possible adsorbent for these applications was also explored. The first application, DAC of CO2 using adsorbents, addresses climate change by reducing the amount of atmospheric CO2 levels that are directly correlat
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Benevides, Ferreira José Flavio. "La mise au point de méthodes thermiques et spectrométriques pour la caractérisation des catalyseurs pour le stockage de CO2." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00858419.

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La capture de CO2 par adsorption sur des solides poreux (adsorbants) est une alternative prometteuse en raison de sa sélectivité et de sa faible consommation d'énergie. Nous avons étudié l'adsorption in-situ de CO2 sur des adsorbants solides en combinant la spectroscopie infrarouge par réflexion diffuse (DRIFT) avec la thermographie infrarouge afin de mieux comprendre les mécanismes d'interaction CO2-adsorbant et ainsi optimiser sa captation dans des procédés de capture en post-combustion. La thermographie IR est utilisée pour détecter la source de chaleur transitoire provenant de la surface d
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Chang, Te-Wei, and 張德威. "CO2 Capture by Fluidized Adsorption Absorption." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/99smtv.

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碩士<br>國立清華大學<br>化學工程學系所<br>106<br>Increasing CO2 emissions from using fossil fuels and the resulting greenhouse effect have received extensive concerns, and the reduction of CO2 has become the global trend. In this study, we select cheap mesoporous materials, AC (activated carbon) as adsorbents. Moreover, we also modify AC with impregnation method to improve its CO2 capture capacity. For solution, we select EG(ethylene glycol), DEG(diethylene glycol) and PEG-400(polyethylene glcol) for CO2 capture in flue gas. TGA was used to determine the adsorption capacity of the adsorbent and a break th
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Maphada, Mulanga. "Verification of a CO2 volumetric adsorption system." Thesis, 2013. http://hdl.handle.net/10539/12823.

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Carbon dioxide (CO2) atmospheric emissions are regarded as the major cause of global climate change. South Africa aims to reduce its current emissions of over 400 Mton per annum through carbon dioxide capture and storage (CCS) technology by initially implementing the storage phase. Storage of captured CO2 into various sites (such as coal, rocks, aquifers and etc) is a globally accepted means to mitigate the accumulation of greenhouse gases (GHG) in the atmosphere. Before storing CO2, adsorption isotherms must be generated using a volumetric adsorption system (VAS). A VAS is used to dete
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Lin, Yichen, and 林誼真. "The CO2 adsorption on modified ordered mesoporouscarbon." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/09014942549607300901.

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碩士<br>國立臺灣大學<br>地質科學研究所<br>103<br>In this study, the ordered mesoporous carbon (OMC) with high surface areas and high pore volume was prepared by hydrothermal method, and then modified by nitric acid solution, which was named OMCA. OMCA materials were modified by grafting different amine separately, which were tetraethylenepentamine (TEPA) , tris（2-aminoethyl）amine (TAEA) and polyethylenimine (PEI), and loaded with varied amounts (5, 10 and 20 wt%). The textual, structural properties, and surface morphology of all prepared materials were characterized by powder X-ray diffraction (XRD), N2 sorp
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Ya-WenSu and 蘇雅雯. "Study on CO2 adsorption by porous alumina." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/44317323796066845848.

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碩士<br>國立成功大學<br>地球科學系碩博士班<br>100<br>It is well known that carbon dioxide (CO2) has become an important global issue due to the continuous rise in CO2 emissions to the atmosphere and it induces the global climate change. Therefore, it is necessary to reduce CO2 concentration by storage or mineralization techniques from the current level. The adsorption of carbon dioxides onto porous materials for recycling is one of the effective reduction of carbon dioxides. In this study, we use porous alumina, CaO-coating and amine-modification porous aluminas to capture CO2. The crystal structure, morph
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LIU, CHIA-CHENG, and 劉家呈. "CO2 adsorption using Ethylenediamine graft to SBA-15." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/dcfrmj.

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碩士<br>國立聯合大學<br>環境與安全衛生工程學系碩士班<br>104<br>Different synthetic temperatures (70, 100 and 130℃) and reaction times (24 and 72 hours) are used to make SBA-15 of pore diameters, which is functionalized. The acrylate-based amine dendrimers is grafted by stepwise polymerization the functionalized SBA-15. The grafting efficiency of the absorbent and the absorption effect of carbon dioxide are discussed, and problems such as pore filling are improved. The data of BET analysis shows that the pore diameter will increase from 3.55 nm to 7.91 nm as the hydrothermal temperature increases, and will also incr
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