Aromatization of alkenes by gallium/H-ZSM-5 zeolite catalysts

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dc.contributor.advisorDry, Marken_ZA
dc.contributor.authorNash, Robin Johnen_ZA
dc.date.accessioned2016-08-24T13:00:51Z
dc.date.available2016-08-24T13:00:51Z
dc.date.issued1994en_ZA
dc.description.abstractGallium/H-ZSM-5 zeolite catalysts have been extensively researched for the aromatization of liquified petroleum gas (LPG). In 1989 BP and UOP collaborated to commission a pilot plant in Grangemouth, Scotland, for the aromatization of propane and butane. This plant, based on a technology called the Cyclar process, used continuous catalyst regeneration (CCR) and a gallium impregnated ZSM-5 zeolite catalyst to achieve yields of ca. 65% aromatics, mainly benzene, toluene and xylenes (BTX) [Guisnet and Gnep, 1992]. As a result of the Fischer-Tropsch process used by SASOL Ltd., South Africa is in an internationally unique position, in that it has a surplus of long chain linear alkenes with carbon numbers in the range C6-C8 . There could be large economic incentives to convert these alkenes into more valuable products, like alcohols or aromatics. Thus the purpose of this project was to determine if gallium/H-ZSM-5 catalysts, similar to those used in the Cyclar process, would be suitable for the aromatization of long chain alkenes. Three methods were investigated for the introduction of gallium into ZSM-5: (i) physical mixing with gallium oxide; (ii) impregnation by incipient wetness with gallium nitrate; (iii) ion-exchange with gallium nitrate. The catalysts were. tested with regard to their catalytic activity for the aromatization of 1-hexene and 1-octene.en_ZA
dc.identifier.apacitationNash, R. J. (1994). <i>Aromatization of alkenes by gallium/H-ZSM-5 zeolite catalysts</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Catalysis Research. Retrieved from http://hdl.handle.net/11427/21518en_ZA
dc.identifier.chicagocitationNash, Robin John. <i>"Aromatization of alkenes by gallium/H-ZSM-5 zeolite catalysts."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Catalysis Research, 1994. http://hdl.handle.net/11427/21518en_ZA
dc.identifier.citationNash, R. 1994. Aromatization of alkenes by gallium/H-ZSM-5 zeolite catalysts. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Nash, Robin John AB - Gallium/H-ZSM-5 zeolite catalysts have been extensively researched for the aromatization of liquified petroleum gas (LPG). In 1989 BP and UOP collaborated to commission a pilot plant in Grangemouth, Scotland, for the aromatization of propane and butane. This plant, based on a technology called the Cyclar process, used continuous catalyst regeneration (CCR) and a gallium impregnated ZSM-5 zeolite catalyst to achieve yields of ca. 65% aromatics, mainly benzene, toluene and xylenes (BTX) [Guisnet and Gnep, 1992]. As a result of the Fischer-Tropsch process used by SASOL Ltd., South Africa is in an internationally unique position, in that it has a surplus of long chain linear alkenes with carbon numbers in the range C6-C8 . There could be large economic incentives to convert these alkenes into more valuable products, like alcohols or aromatics. Thus the purpose of this project was to determine if gallium/H-ZSM-5 catalysts, similar to those used in the Cyclar process, would be suitable for the aromatization of long chain alkenes. Three methods were investigated for the introduction of gallium into ZSM-5: (i) physical mixing with gallium oxide; (ii) impregnation by incipient wetness with gallium nitrate; (iii) ion-exchange with gallium nitrate. The catalysts were. tested with regard to their catalytic activity for the aromatization of 1-hexene and 1-octene. DA - 1994 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1994 T1 - Aromatization of alkenes by gallium/H-ZSM-5 zeolite catalysts TI - Aromatization of alkenes by gallium/H-ZSM-5 zeolite catalysts UR - http://hdl.handle.net/11427/21518 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/21518
dc.identifier.vancouvercitationNash RJ. Aromatization of alkenes by gallium/H-ZSM-5 zeolite catalysts. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Centre for Catalysis Research, 1994 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/21518en_ZA
dc.language.isoEngen_ZA
dc.publisher.departmentCentre for Catalysis Researchen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherCatalysis Researchen_ZA
dc.titleAromatization of alkenes by gallium/H-ZSM-5 zeolite catalystsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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