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dc.contributor.advisorSubramaniam, Bala
dc.contributor.authorGong, Kening
dc.date.accessioned2008-12-05T05:39:47Z
dc.date.available2008-12-05T05:39:47Z
dc.date.issued2008-10-23
dc.date.submitted2008
dc.identifier.otherhttp://dissertations2.umi.com/ku:2754
dc.identifier.urihttp://hdl.handle.net/1808/4285
dc.description.abstractDeveloping economically viable solid acid catalyzed alkylation processes continues to be a grand challenge. Economic and environmental impact assessments of a solid acid/CO2 alkylation process indicate that the solid acid catalyst must be at least four times more active than SiO2-supported Nafion while providing > 80% C 80% C8 alkylates selectivity for the process to be economically viable. A tapered element oscillating microbalance (TEOM) was used to elucidate for the first time the adsorption/desorption characteristics of alkylation reactants and products on promising large-pore beta- and USY-zeolites. A deeper understanding of the limitations of this instrument was gained for diffusivity measurements using large-pore zeolites with small crystal sizes. The desorption rates of 2,2,4-trimethylpentane (224-TMP, the desired alkylate product) from beta-zeolite by helium purging are extremely slow and discontinuous in nature. The significant buildup of 224-TMP causes significant mass transport limitations inside the beta-zeolite pores and will eventually lead to catalyst deactivation by fouling.
dc.format.extent179 pages
dc.language.isoEN
dc.publisherUniversity of Kansas
dc.rightsThis item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.
dc.subjectChemical engineering
dc.titleADSORPTION/DESORPTION STUDIES ON SOLID ACID ALKYLATION CATALYSTS USING A TAPERED ELEMENT OSCILLATING MICROBALANCE (TEOM)
dc.typeDissertation
dc.contributor.cmtememberRamachandran, Palghat A.
dc.contributor.cmtememberChaudhari, Raghunath V.
dc.contributor.cmtememberHutchenson, Keith W.
dc.contributor.cmtememberBarybin, Mikhail V.
dc.thesis.degreeDisciplineChemical & Petroleum Engineering
dc.thesis.degreeLevelPH.D.
kusw.oastatusna
kusw.oapolicyThis item does not meet KU Open Access policy criteria.
dc.rights.accessrightsopenAccess


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