The catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resin

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dc.contributor.advisorO'Connor, Cyril Ten_ZA
dc.contributor.authorSchumann, Werner Karlen_ZA
dc.date.accessioned2016-08-22T12:24:01Z
dc.date.available2016-08-22T12:24:01Z
dc.date.issued1984en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractThe use of ion exchange resins in the polymerization of a c 4 -mixture to liquid fuels has shown that the catalyst is highly active, deactivates at a slow rate and selectively produces mainly dimers. Macropore diffusion resistance strongly influences the overall rate of the reaction. An increase in liquid production rate is obtained with increasing macroporosity, increasing degree of functionalization and decreasing catalyst bead size. A minimum acid strength of pKA = -2.4 is required. The liquid production rate is increased by increasing the reaction temperature and weight hourly space velocity. Moreover, longer chain length product are obtained with increasing reaction temperature and at reaction conditions, which result in the complete conversion of monomers. Recycling liquid product reduces the liquid production and increases the production of trimer at the expense of dimer. At moderate reaction temperatures ion exchange resins are regenerable but the activity of the catalyst is destroyed at reaction temperatures greater than approximately 130°C. Deactivation occurs parallel to the main reaction and is due to cationic fouling. The liquid product obtained is highly branched. The R.O.N. of the -180°C fraction is approximately 97 and the cetane number of the +180°C fraction approximately 35.en_ZA
dc.identifier.apacitationSchumann, W. K. (1984). <i>The catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resin</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering. Retrieved from http://hdl.handle.net/11427/21419en_ZA
dc.identifier.chicagocitationSchumann, Werner Karl. <i>"The catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resin."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 1984. http://hdl.handle.net/11427/21419en_ZA
dc.identifier.citationSchumann, W. 1984. The catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resin. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Schumann, Werner Karl AB - The use of ion exchange resins in the polymerization of a c 4 -mixture to liquid fuels has shown that the catalyst is highly active, deactivates at a slow rate and selectively produces mainly dimers. Macropore diffusion resistance strongly influences the overall rate of the reaction. An increase in liquid production rate is obtained with increasing macroporosity, increasing degree of functionalization and decreasing catalyst bead size. A minimum acid strength of pKA = -2.4 is required. The liquid production rate is increased by increasing the reaction temperature and weight hourly space velocity. Moreover, longer chain length product are obtained with increasing reaction temperature and at reaction conditions, which result in the complete conversion of monomers. Recycling liquid product reduces the liquid production and increases the production of trimer at the expense of dimer. At moderate reaction temperatures ion exchange resins are regenerable but the activity of the catalyst is destroyed at reaction temperatures greater than approximately 130°C. Deactivation occurs parallel to the main reaction and is due to cationic fouling. The liquid product obtained is highly branched. The R.O.N. of the -180°C fraction is approximately 97 and the cetane number of the +180°C fraction approximately 35. DA - 1984 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1984 T1 - The catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resin TI - The catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resin UR - http://hdl.handle.net/11427/21419 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/21419
dc.identifier.vancouvercitationSchumann WK. The catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resin. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Mechanical Engineering, 1984 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/21419en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Mechanical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherMechanical Engineeringen_ZA
dc.titleThe catalytic conversion of low chain length hydrocarbons to liquid fuels using ion exchange resinen_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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