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Dissertations / Theses on the topic 'CO₂ separation'

Author: Grafiati

Published: 6 July 2024

Last updated: 31 July 2025

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1

Xie, Xiaofeng. "CO₂-expanded liquids for separation and reaction." Diss., Georgia Institute of Technology, 2003. http://hdl.handle.net/1853/10077.

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2

Shen, Dawei. "Co-channel digital signal separation : application and practice." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/42408.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2008.<br>Includes bibliographical references (leaves 84-86).<br>This thesis studies the theory and application of co-channel digital signal separation techniques. We set up a test-bed with the GNU Software Defined Radio (SDR) platform where we implement and experiment with single-antenna signal separation algorithms. We mainly investigate linearly-modulated digital signals. To do this, we design a multiple RFID card reader capable of decoding multiple commodity ID card

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3

Jegede, Oluwatoyin Enitan. "Metastable liquid phase separation in Co-Cu alloys." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/19808/.

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Two Co – Cu alloys were studied by drop tube processing technique in a view of investigating the effects of rapid solidification on the phase transformations and microstructural evolution in the metastable alloys. The as – solidified samples had diameters ranging from 53 – 850+ μm and these were analysed using various characterization techniques such as optical (OM) and scanning electron (SEM) microscopy, x- ray diffraction (XRD) and differential thermal analysis (DTA). The Cu – 50 at. % Co alloy was observed to experience liquid phase separation at lower undercooling than the Cu – 68.5 at. %

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4

Woo, Grace R. "Demonstration and evaluation of co-channel DBPSK source separation." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/42170.

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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2007.<br>Includes bibliographical references (leaves 51-53).<br>This thesis presents a Differential Binary Phase Shift Key (DBPSK) source separation system implemented with the GNU Software Defined Radio (SDR) platform and interfaced with the existing MIT community Radio Frequency Identification (RFID) system. Source separation, well studied in the theoretical signal processing setting, presents an opportunity to achieve higher throughput in a practical SDR deployment.

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5

Kim, Sangil. "Modified ordered mesoporous silica membranes for CO₂ -N₂ separation." Cincinnati, Ohio : University of Cincinnati, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=ucin1070484926.

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6

Corcoran, Edward W., Ronald R. Chance, Harry W. Deckman, et al. "Molecular transport in inorganic membranes: CO 2 /CH 4 separation." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-194810.

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7

Corcoran, Edward W., Ronald R. Chance, Harry W. Deckman, et al. "Molecular transport in inorganic membranes: CO 2 /CH 4 separation." Diffusion fundamentals 3 (2005) 18, S. 1, 2005. https://ul.qucosa.de/id/qucosa%3A14307.

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8

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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9

Cowan, Oliver. "Co-occurrence and phenological niche separation in rodent pollinated Proteaceae." Bachelor's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/24855.

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Despite the numerous studies regarding rodent pollination in the Cape Floristic Region in the last few decades, little or no work has been done on patterns of co-occurrence and flowering phenology. The presence of three potentially rodent-pollinated Protea species at Fernkloof Nature Reserve, two of which were observed to co-occur, facilitated the following questions: i) are P. cordata, P. scabra and P. angustata therophilous? ii) do therophilous species co-exist at a fine scale? iii) do they have the same pollinator? iv) do they exhibit staggered flowering phenology? The floral characteristic

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10

Vaughn, Justin. "Development and evaluation of aromatic polyamide-imide membranes for H₂S and CO₂ separations from natural gas." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/47576.

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Over the past decade, membrane based gas separations have gained traction in industry as an attractive alternative to traditional thermally based separations due to their potential to offer lower operational and capital expenditures, greater ease of operation and lower environmental impact. As membrane research evolves, new state-of-the-art membrane materials as well as processes utilizing membranes will likely be developed. Therefore, their incorporation into existing thermally based units as a debottlenecking step or as a stand-alone separation unit is expected to become increasingly more co

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11

Nzama, Nosipho Mercy. "Adsorptive separation of Ce Co Ru Sb and Sr ions using inorganic ion exchangers." Diss., University of Pretoria, 2019. http://hdl.handle.net/2263/79295.

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Ion exchange and adsorption (can both be referred to as ‘sorption’) are widely used as purification and concentration methods in the nuclear industry. Various mathematic models have been developed to describe the mechanisms of sorption using the kinetics and equilibrium data. In this study, the ion exchange and adsorption capability and efficacy of various inorganic sorbent materials to remove contaminants were investigated with the intent of applying the process in the purification of post reactor uranium for reuse and cleaning of research reactors pool water. The contaminants studied are Ce,

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12

Zhang, Naiyuan. "Hydrogen Isotope Separation in Metal-Organic Frameworks." Oberlin College Honors Theses / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1532013686771173.

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13

Kim, Danny Jinsoo. "Effects of polymerization conditions and imidization methods on performance of crosslinkable polymer membrane for CO₂/CH₄ separation." Thesis, Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/48938.

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Natural gas feeds often contain contaminants such as CO₂, H₂S, H₂O, and small hydrocarbons. Carbon dioxide is a major contaminant reducing the heating value of the gas and causing pipeline corrosion, so CO₂ level should be lowered to below 2% to meet the United States pipeline specifications. Membrane separation technology can be advantageous over cryogenic distillation and amine adsorption in terms of cost and efficiency. The key hurdle to overcome in polymeric membrane separation technology is improvement in selectivity, productivity, and durability without introducing significant additional

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14

Wilson, Graeme Barnetson. "Fathers as co-parents : how non-resident fathers construe family situations after divorce or separation." Thesis, University of Glasgow, 2003. http://theses.gla.ac.uk/1131/.

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A model of the co-parental role based on personal construct theory is described, with inter-parental conflict explained in terms of the constructivist concept of hostility. Four unstructured group interviews, on the theme of the experience of separated parenthood, were conducted with separated fathers (n=14) from throughout Strathclyde. Thematic analysis of the results suggests that while participants recognised the importance of maintaining relations with the other parent, that relationship was seen as adversarial, and fathers frequently feel controlled or powerless; different strategies for

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15

Kane, Dellwyn. "Hydrograph separation using end member mixing models in the Oona Water river catchment, Co Tyrone." Thesis, University of Ulster, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.529518.

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16

KIM, SANGIL. "MODIFIED ORDERED MESOPOROUS SILICA MEMBRANES FOR CO ₂ -N ₂ SEPARATION." University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1070484926.

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17

Popp, Nadine [Verfasser], and Jürgen [Akademischer Betreuer] Senker. "Poröse organische Netzwerke zur selektiven CO₂ Speicherung und Separation von Gasgemischen / Nadine Popp ; Betreuer: Jürgen Senker." Bayreuth : Universität Bayreuth, 2017. http://d-nb.info/1130243249/34.

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18

Bubier, Jennifer L. "Co-occurrence of Oppositional Defiant Disorder with Generalized and Separation Anxiety Disorders Among Inner-city Children." Diss., Temple University Libraries, 2010. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/48936.

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Psychology<br>Ph.D.<br>There is a paucity of research that has examined co-occurring oppositional defiant disorder and generalized anxiety disorder (ODD+GAD) symptoms and oppositional defiant disorder and separation anxiety disorder (ODD+SAD) symptoms among children. To address this gap, I investigated multiple explanations for the co-occurrence of ODD+GAD and ODD+SAD. Specifically, I investigated whether (a) GAD symptoms prospectively predicted ODD symptoms and SAD symptoms prospectively predicted ODD symptoms (Explanation 1), (b) ODD symptoms prospectively predicted GAD symptoms and ODD symp

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19

Foster, Paul J. "Continuous Co-Separation by Liquid Absorption in Aqueous Cuprous Chloride (CuCl) and Magnesium Chloride (MgCl2) Solution." Diss., CLICK HERE for online access, 2007. http://contentdm.lib.byu.edu/ETD/image/etd1789.pdf.

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20

Sahin, Mustafa. "Baseband receiver algorithms for 4G co-channel femtocells." [Tampa, Fla] : University of South Florida, 2009. http://purl.fcla.edu/usf/dc/et/SFE0003283.

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21

Brunson, Kennard. "POLYURETHANE-BASED POLYMER SURFACE MODIFIERS WITH ALKYL AMMONIUM CO-POLYOXETANE SOFT BLOCKS: REACTION ENGINEERING, SURFACE MORPHOLOGY AND ANTIMICROBIAL BEHAVIOR." VCU Scholars Compass, 2010. http://scholarscompass.vcu.edu/etd/2258.

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Concentrating quaternary (positive) charge at polymer surfaces is important for applications including layer-by-layer polyelectrolyte deposition and antimicrobial coatings. Prior techniques to introduce quaternary charge to the surface involve grafting of quaternary ammonium moieties to a substrate or using polyurethanes with modified hard segments however there are impracticalities involved with these techniques. In the case of the materials discussed, the quaternary charge is introduced via polyurethane based polymer surface modifiers (PSMs) with quaternized soft segments. The particular adv

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22

Armstrong, Shannon Renee. "Novel Applications of Co-Extruded Multilayer Polymeric Films." Case Western Reserve University School of Graduate Studies / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=case1370531152.

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23

Salim, Witopo. "CO₂-selective Membranes for Fuel Cell H₂ Purification and Flue Gas CO₂ Capture: From Lab Scale to Field Testing." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1514889154359659.

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24

Wilson, Sean M. W. "Adsorption Separation of CO2 from CO in Syngas: Improving the Conversion of the Reverse Water Gas Shift Reaction." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/33169.

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In this research project, adsorption is considered for the separation of CO2 from CO for applications such as industrial syngas production and in particular to improve the conversion of the Reverse Water Gas Shift (RWGS) process. The use of adsorption technology for these applications requires an adsorbent that can effectively separate out CO2 from a gas mixture containing CO2, CO, and H2. However, adsorption of H2 is insignificant when compared to both CO2 and CO, with only CO2 and CO being the adsorbed species. The adsorption of CO2 and CO was investigated in this work for four major types o

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25

Gupta, Himanshu. "NOx reduction by Carbonaceous Materials and CO₂ separation using regenerative metal oxides from fossil fuel based flue gas /." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1486399160107212.

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26

Keller, Laura [Verfasser], Matthias [Akademischer Betreuer] Wessling, and Ryan P. [Akademischer Betreuer] Lively. "Microtubes made of carbon nanotube hybrid materials for CO$_2}$ separation / Laura Keller ; Matthias Wessling, Ryan P. Lively." Aachen : Universitätsbibliothek der RWTH Aachen, 2020. http://d-nb.info/1218787910/34.

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27

Anand, K. "Methods for Blind Separation of Co-Channel BPSK Signals Arriving at an Antenna Array and Their Performance Analysis." Thesis, Indian Institute of Science, 1995. https://etd.iisc.ac.in/handle/2005/123.

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Capacity improvement of Wireless Communication Systems is a very important area of current research. The goal is to increase the number of users supported by the system per unit bandwidth allotted. One important way of achieving this improvement is to use multiple antennas backed by intelligent signal processing. In this thesis, we present methods for blind separation of co-channel BPSK signals arriving at an antenna array. These methods consist of two parts, Constellation Estimation and Assignment. We give two methods for constellation estimation, the Smallest Distance Clustering and the Maxi

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28

Anand, K. "Methods for Blind Separation of Co-Channel BPSK Signals Arriving at an Antenna Array and Their Performance Analysis." Thesis, Indian Institute of Science, 1995. http://hdl.handle.net/2005/123.

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Capacity improvement of Wireless Communication Systems is a very important area of current research. The goal is to increase the number of users supported by the system per unit bandwidth allotted. One important way of achieving this improvement is to use multiple antennas backed by intelligent signal processing. In this thesis, we present methods for blind separation of co-channel BPSK signals arriving at an antenna array. These methods consist of two parts, Constellation Estimation and Assignment. We give two methods for constellation estimation, the Smallest Distance Clustering and the Maxi

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29

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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30

Maurer, Ronald W. "Competitive Adsorption of Poly(1-vinylpyrrolidone-co-styrene) and Kymene onto Wood Fibers: the Improved Effect of Sequential Adsorption." Thesis, Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/14075.

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Non-ionic copolymers, such as poly(1-vinylpyrrolidone-co-styrene), are used in the production of filtration membranes and fibers because of their ability to provide both hydrophilic and hydrophobic character. However, their non-ionic character and solubility in water prevents inexpensive recovery from waste streams. Wood fibers show potential as recovery agents because they are inexpensive, environmentally friendly, and have a large surface area per unit mass (200 m2/g). However, due to the anionic nature of the fiber surface, their adsorptive behavior is often limited to cationic species. We

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31

Landaverde, Alvarado Carlos Jose. "Sorption, Transport and Gas Separation Properties of Zn-Based Metal Organic Frameworks (MOFs) and their Application in CO₂ Capture." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/73214.

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Adsorption, separation and conversion of CO₂ from industrial processes are among the priorities of the scientific community aimed at mitigating the effects of greenhouse gases on the environment. One of the main focuses is the capture of CO₂ at stationary point sources from fossil fuel emissions using porous crystalline materials. Porous crystalline materials can reduce the energy costs associated with CO₂ capture by offering high adsorption rates, low material regeneration energy penalties and favorable kinetic pathways for CO₂ separation. MOFs consist of polymeric inorganic networks with adj

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32

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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33

Vinnakota, Keerthi. "Chemical Recycling of Poly (Ethylene Terephthalate) and its Co-polyesters with 2, 5-Furandicarboxylic Acid using Alkaline Hydrolysis." University of Toledo / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1535106967389994.

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34

Ghafouri-Bakhsh, Shakour. "Morphological studies of polymer blends by scanning tunneling microscopy, phase separation in poly(methyl methacrylate)/poly(styrene- co-methylmethacrylate) systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1994. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/MQ51530.pdf.

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35

Jung, Kyung Sook. "CO₂ Separation and Regeneration Study From Power Plant Flue Gases With Reclaimed Mg(OH)₂." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1122333773.

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36

Zago, Gustavo Pereira. "Estudo da co-cristalização em sistema ternário NaCI-CaSO4-H2O para dessalinização de água." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/3/3137/tde-15012018-132007/.

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O crescimento acelerado da população mundial e o consequente aumento da produção de bens de consumo tem impulsionado uma crise na disponibilidade de recursos naturais, principalmente os hídricos. Diante da escassez de recursos hídricos, processos de tratamento de efluentes industriais e domésticos que visam o descarte zero de líquido (ZLD - Zero Liquid Discharge) vêm sendo cada vez mais estudados. Atualmente, diversos processos têm sido empregados com este propósito. No entanto, ainda há a geração, juntamente com a água recuperada, de uma corrente composta por uma solução salina concentrada, c

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37

Wang, Di. "Ιnnοvative cοmpοsite pοlymer materials fοr CΟ2 separatiοn". Electronic Thesis or Diss., Normandie, 2024. http://www.theses.fr/2024NORMIR09.

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Actuellement, les émissions de CO₂, principal responsable du réchauffement climatique, augmentent à un rythme alarmant. Par conséquent, il existe un besoin mondial croissant de technologies de pointe capables de séparer et de capturer efficacement le CO₂. Dans ce travail, une série de membranes composites PSF/IL et PES/IL pour la séparation du CO₂ ont été étudiées. Six IL ([Meim][TFSO₃], [Vim][TFSO₃], [Meim][Tf₂N], [Vim][Tf₂N], Li(DOBA)[Tf₂N] et Li(HDA)[Tf₂N]) ont été synthétisés avec succès et caractérisés par FT-IR, 1H RMN, TGA et DSC. Des membranes composites avec différentes quantités d'IL

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38

Vogel, Jörn-Oliver. "Co-deposited films of rod-like conjugated molecules." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2009. http://dx.doi.org/10.18452/15978.

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In dieser Arbeit wird die Phasenseparation und Mischung zwischen konjugierten Stäb-chenmolekülen in dünnen Filmen untersucht. Hauptaugenmerk liegt darauf zu ergrün-den welche molekularen Eigenschaften zu Mischung und/ oder Phasenseparation füh-ren. Mit den 5 Molekülen Pentacen (PEN), Quaterthiophen (4T), Sexithiophen (6T), p-Sexiphenylen (6P), alpha,omega-Dihexylsexithiophen (DH6T) werden Materialpaare zusammen gestellt, die sich in den Parametern „optische und elektrische Eigenschaf-ten“, „Länge des konjugierten Kerns“ und Alkylkettensubstitution unterscheiden. Alle Schichten werden mittels o

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39

Wieczorek, Jens [Verfasser], and Uwe [Akademischer Betreuer] Bovensiepen. "Separation von laserinduzierten- ultraschnellen Transporteffekten und Spin-Flip-Streuung in Co/Cu(001) - Eine schichtdickenabhängige Magnetisierungsprofilanalyse mittels magnetooptischen Methoden / Jens Wieczorek. Betreuer: Uwe Bovensiepen." Duisburg, 2015. http://d-nb.info/1079793526/34.

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40

Huang, Jin. "CO₂(H₂S) membrane separations and WGS membrane reactor modeling for fuel cells." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1166640509.

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41

Tzou, Nicholas. "Low-cost sub-Nyquist sampling hardware and algorithm co-design for wideband and high-speed signal characterization and measurement." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/51876.

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Cost reduction has been and will continue to be a primary driving force in the evolution of hardware design and associated technologies. The objective of this research is to design low-cost signal acquisition systems for characterizing wideband and high-speed signals. As the bandwidth and the speed of such signals increase, the cost of testing also increases significantly; therefore, innovative hardware and algorithm co-design are needed to relieve this problem. In Chapter 2, a low-cost multi-rate system is proposed for characterizing the spectra of wideband signals. The design is low-cost in

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42

Lima, Juliana Aristeia de. "Comportamento de fases de soluções binarias e ternarias de poli(etileno-co-alcool vinilico), poli(metacrilato de metila) e dimetilformamida." [s.n.], 2008. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248789.

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Orientador: Maria Isabel Felisberti<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-12T12:37:28Z (GMT). No. of bitstreams: 1 Lima_JulianaAristeiade_D.pdf: 4425741 bytes, checksum: e0c47d6335f66cc31a0fe6e5ac1c0457 (MD5) Previous issue date: 2008<br>Resumo: Neste trabalho foram estudadas blendas de poli(etileno-co-álcool vinílico) (EVOH), um copolímero semicristalino que combina segmentos hidrofílicos e hidrofóbicos e poli(metacrilato de metila) (PMMA), um polímero amorfo e hidrofílico. As blendas de EVOH, com teor de etileno

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43

Elmsjö, Albert. "Selectivity in NMR and LC-MS Metabolomics : The Importance of Sample Preparation and Separation, and how to Measure Selectivity in LC-MS Metabolomics." Doctoral thesis, Uppsala universitet, Avdelningen för analytisk farmaceutisk kemi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-318296.

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Until now, most metabolomics protocols have been optimized towards high sample throughput and high metabolite coverage, parameters considered to be highly important for identifying influenced biological pathways and to generate as many potential biomarkers as possible. From an analytical point of view this can be troubling, as neither sample throughput nor the number of signals relates to actual quality of the detected signals/metabolites. However, a method’s selectivity for a specific signal/metabolite is often closely associated to the quality of that signal, yet this is a parameter often ne

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44

Marchand, Jean-Pierre. "Relaxation magnétique nucléaire dans les solutions ternaires de polyacrylonitrile ou de polyacrylonitrile-co-méthallylsulfonate de sodium : détermination et caractérisation du diagramme de phases." Grenoble 1, 1993. http://www.theses.fr/1993GRE10193.

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Ce travail concerne l'etude des proprietes des solutions de polyacrylonitrile (pan) et des copolymeres d'acrylonitrile et de methallylsulfonate de sodium observees a l'equilibre ou hors equilibre thermodynamique. Utilisees dans la fabrication de membranes de dialyse renale, ces solutions ont ete explorees par rmn a une echelle d'espace caracteristique des processus physiques (cristallisation, demixtion) responsable des proprietes de permeabilite de ces membranes. Le pan et son copolymere presentent en solution un diagramme de phases typiques d'un polymere semi-cristallin; les conditions d'etab

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45

Tilli, Paola. "Production, characterization and modeling of hollow fiber membranes for biogas purification." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018.

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One type of technology for biogas purification which has experienced substantial growth during past decades is membrane-based technology which presents the advantage of high energy efficiency, simplicity in design and environmental compatibility. The market for CO₂ is dominated by polymeric membranes due to their relatively low manufacturing cost. In this work, the performance of different P84 hollow fibers membranes for CO₂/CH₄ separation is investigated. Different spinning parameters are studied on their effect on gas separation performance of the produced fibers. The attention is focused on

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Marques, Rosalva dos Santos. "Comportamento de fases de soluções de poliolefinas funcionalizadas e implicação na obtenção de membranas pelo processo TIPS." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248781.

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Orientador: Maria Isabel Felisberti<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Química<br>Made available in DSpace on 2018-08-26T22:37:44Z (GMT). No. of bitstreams: 1 Marques_RosalvadosSantos_D.pdf: 38406911 bytes, checksum: 574d251b2b2578b4a3d9fd0b4e82fcf7 (MD5) Previous issue date: 2014<br>Resumo: Neste trabalho, estudou-se o comportamento de fases de soluções binárias e ternárias de poliolefinas funcionalizadas com hidroxilas (EVOH) e ácido carboxílico (PEAA) nos solventes dimetilformamida e álcool benzílico. Utilizou-se EVOH contendo 27 e 44 mol % e PEAA conten

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47

Anselmi, Hélène. "Modélisation et évaluation environnementale d’une unité de captage de CO₂ intégrée à un procédé industriel." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0080.

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Limiter les émissions de dioxyde de carbone (CO2) est devenu un enjeu d’envergure internationale, notamment pour les industries des secteurs énergétique, chimique et métallurgique. À cette fin, des technologies de captage de CO2 ont été développées durant ces dernières décennies. Dans cette étude, nous nous intéressons à trois types de technologies de captage de CO2 : par absorption chimique à la MEA, par séparation membranaire et par adsorption sur charbon actif. Le CO2 considéré est émis par une centrale à charbon puis directement valorisé au sein d’un procédé de fabrication sur le même site

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48

Anselmi, Hélène. "Modélisation et évaluation environnementale d’une unité de captage de CO₂ intégrée à un procédé industriel." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0080.

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Limiter les émissions de dioxyde de carbone (CO2) est devenu un enjeu d’envergure internationale, notamment pour les industries des secteurs énergétique, chimique et métallurgique. À cette fin, des technologies de captage de CO2 ont été développées durant ces dernières décennies. Dans cette étude, nous nous intéressons à trois types de technologies de captage de CO2 : par absorption chimique à la MEA, par séparation membranaire et par adsorption sur charbon actif. Le CO2 considéré est émis par une centrale à charbon puis directement valorisé au sein d’un procédé de fabrication sur le même site

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49

Barrera, Bogoya Anamaria. "New poly(ionic liquid)s for CO₂ separations." Electronic Thesis or Diss., Université de Lorraine, 2025. http://www.theses.fr/2025LORR0036.

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Behloul, Chakib Rafik. "Méthodes de conception de réacteurs multifonctionnels (réacteur-échangeur-séparateur) : application à la synthèse directe de DME à partir de CO₂ et d’H₂." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0249.

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L'épuisement des ressources et l'accumulation des gaz polluants dans l'atmosphère suscitent aujourd'hui des inquiétudes grandissantes. La transition énergétique en cours nécessite que certains procédés de transformation de la matière et de l'énergie soient partiellement modifiés ou profondément repensés pour s'adapter à des conditions de fonctionnement plus durables. L'électricité et l'hydrogène bas carbone peuvent se substituer aux énergies fossiles conduisant ainsi à un mix énergétique dont l'empreinte Gaz à Effet de Serre (GES) est faible. Outre l'hydrogène, la production de carburants alte

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