Analysis of Liquid Chemisorbent for CO2 removal and Solvent Vapor Processing of Ternary Polymer Blends

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dc.contributor.advisorVerduzco, Rafaelen_US
dc.creatorSharma, Saurabhen_US
dc.date.accessioned2019-05-17T14:58:21Zen_US
dc.date.available2019-05-17T14:58:21Zen_US
dc.date.created2018-05en_US
dc.date.issued2018-04-20en_US
dc.date.submittedMay 2018en_US
dc.date.updated2019-05-17T14:58:21Zen_US
dc.description.abstractA robust, reliable, and low-power system is needed for carbon dioxide (CO2) remediation in deep-space exploration systems. The current CO2 removal system on the International Space Station relies on zeolites, but an alternative CO2 scrubbing technology based on liquid amines has recently been proposed and demonstrated. In this project, we critically evaluate the use of liquid amines to uptake CO2 and provide recommendations for implementation and optimization. We model CO2 uptake using COMSOL and generate concentration profiles for liquid amine and CO2 in gas and liquid phases. We show that liquid amines have significant capacity for CO2 uptake, and the rate of uptake is limited by the available surface area and CO2 diffusion in the gas phase. Higher surface areas, gas mixing, and increased gas velocities can produce uptake rates needed for CO2 removal. The second project focusses on solvent vapor processing of ternary polymer blends to produce co-continuous phases. Co-continuous phases are of interest for a broad range of applications including separations, energy storage, photovoltaics, among other applications. However, most methods for producing co-continuous phases rely on kinetically-arrested phase separation. Here, we pursue the development of equilibrium co-continuous phases through ternary polymer blends consisting of two homopolymers and a compatibilizing block copolymer. We specifically focus on solvent-vapor annealing to equilibrate blends and achieve co-continuous structures in polymer films. Our work shows that solvent-vapor annealing can be used to target and tailor the domain sizes of co-continuous polymer blend films.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationSharma, Saurabh. "Analysis of Liquid Chemisorbent for CO2 removal and Solvent Vapor Processing of Ternary Polymer Blends." (2018) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/105733">https://hdl.handle.net/1911/105733</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/105733en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectCO2 Chemisorptionen_US
dc.subjectDeep space explorationen_US
dc.subjectCOMSOLen_US
dc.subjectSolvent Vapor processingen_US
dc.subjectGISAXSen_US
dc.subjectternary polymer blendsen_US
dc.titleAnalysis of Liquid Chemisorbent for CO2 removal and Solvent Vapor Processing of Ternary Polymer Blendsen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentChemical and Biomolecular Engineeringen_US
thesis.degree.disciplineEngineeringen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelMastersen_US
thesis.degree.majorPolymer Scienceen_US
thesis.degree.nameMaster of Scienceen_US
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