Publication:
Catalytic conversion of CO2 to hydrocarbons
Catalytic conversion of CO2 to hydrocarbons
dc.contributor.advisor | Cardona Martínez, Nelson | |
dc.contributor.author | Oyola Rivera, Oscar | |
dc.contributor.college | College of Engineering | en_US |
dc.contributor.committee | Martínez Iñesta, María | |
dc.contributor.committee | Curet Arana, María | |
dc.contributor.committee | Acevedo Rullán, Aldo | |
dc.contributor.department | Department of Chemical Engineering | en_US |
dc.contributor.representative | Rivera Montalvo, Luis | |
dc.date.accessioned | 2018-05-16T15:23:37Z | |
dc.date.available | 2018-05-16T15:23:37Z | |
dc.date.issued | 2014 | |
dc.description.abstract | The production of methanol and dimethyl ether via CO2 hydrogenation was studied using Pd catalysts supported on α-Ga2O3, α-β-Ga2O3 and β-Ga2O3 polymorphs. The catalytic activity improves with the increase in the content of Pd2Ga intermetallic compound over the surface. The content of Pd2Ga over Pd/Ga2O3, reduced at 573 K, depends on the Ga2O3 crystalline phase present on the catalyst. A slight catalytic deactivation with time on stream was observed. The catalyst supported over α-β-Ga2O3 displayed the largest deactivation. The deactivation of the material appears to be the result of a loss of basic sites over the catalysts surface. The selectivity to dimethyl ether is not dependent on the Pd2Ga content, but depends on the catalyst acidity. The content of Pd2Ga over Pd/Ga2O3 catalysts was identified to be a crucial parameter for CO2 hydrogenation to methanol and dimethyl ether. | |
dc.description.abstract | Se estudió la producción de metanol y éter dimetílico a través de la hidrogenación de CO2 utilizando catalizadores de Pd soportados sobre α-Ga2O3, α-β-Ga2O3 y β-Ga2O3. La actividad catalítica mejora con el aumento en el contenido del compuesto intermetálico Pd2Ga sobre la superficie. El contenido de Pd2Ga sobre los catalizadores de Pd/Ga2O3, reducidos a 573 K, depende del polimorfo de Ga2O3 presente en el catalizador. Se observó una desactivación catalítica leve con el tiempo en flujo. La desactivación aparenta ser mayor sobre el catalizador con soporte α-β-Ga2O3. La desactivación del material parece ser resultado de una pérdida de lugares básicos sobre la superficie de los catalizadores. La selectividad al éter dimetílico es independiente del contenido de Pd2Ga, pero depende de la acidez del catalizador. Se identificó que el contenido de Pd2Ga sobre catalizadores Pd/Ga2O3 puede ser un parámetro crucial para la hidrogenación de CO2 a metanol y éter de dimetílico. | |
dc.description.graduationSemester | Spring | en_US |
dc.description.graduationYear | 2014 | en_US |
dc.description.sponsorship | National Science Foundation (NSF) Partnership for Research and Education in Materials | en_US |
dc.identifier.uri | https://hdl.handle.net/20.500.11801/498 | |
dc.language.iso | en | en_US |
dc.rights.holder | (c) 2014 Oscar Oyola Rivera | en_US |
dc.rights.license | All rights reserved | en_US |
dc.subject | Pd catalysts supported | en_US |
dc.subject | CO2 hydrogenation | en_US |
dc.subject | Hydrocarbons | en_US |
dc.subject.lcsh | Hydrogenation | en_US |
dc.subject.lcsh | Palladium catalysts | en_US |
dc.subject.lcsh | Catalysis | en_US |
dc.subject.lcsh | Gallium | en_US |
dc.title | Catalytic conversion of CO2 to hydrocarbons | en_US |
dc.type | Thesis | en_US |
dspace.entity.type | Publication | |
thesis.degree.discipline | Chemical Engineering | en_US |
thesis.degree.level | M.S. | en_US |