Preparation of nano and Angstrom sized cobalt ensembles and their performance in the Fischer-Tropsch synthesis

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dc.contributor.advisorClaeys, Michaelen_ZA
dc.contributor.advisorVan Steen, Ericen_ZA
dc.contributor.authorFischer, Nicoen_ZA
dc.date.accessioned2014-12-28T20:14:59Z
dc.date.available2014-12-28T20:14:59Z
dc.date.issued2011en_ZA
dc.descriptionIncludes bibliographical references.en_ZA
dc.description.abstractIn Fischer-Tropsch synthesis carbon monoxide and hydrogen are converted in a surface polymerisation reaction over a heterogeneous catalyst to mainly long chain hydrocarbons and water. Although all group VIII metals are reported to show activity in this process, only iron and cobalt are used on an industrial scale due to availability and costs. In order to minimise the costs of these catalysts it is generally important to increase the mass specific active surface area by dispersing the active material on an inert carrier. Recent studies on nano sized iron, cobalt, ruthenium and rhodium crystallites indicate that below a certain crystallite size they display a decrease in surface specific activity. This work aims to study the crystallite size effect of cobalt, supported on an industrially relevant carrier material, on activity and selectivity in the Fischer-Tropsch synthesis.en_ZA
dc.identifier.apacitationFischer, N. (2011). <i>Preparation of nano and Angstrom sized cobalt ensembles and their performance in the Fischer-Tropsch synthesis</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering. Retrieved from http://hdl.handle.net/11427/10462en_ZA
dc.identifier.chicagocitationFischer, Nico. <i>"Preparation of nano and Angstrom sized cobalt ensembles and their performance in the Fischer-Tropsch synthesis."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2011. http://hdl.handle.net/11427/10462en_ZA
dc.identifier.citationFischer, N. 2011. Preparation of nano and Angstrom sized cobalt ensembles and their performance in the Fischer-Tropsch synthesis. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Fischer, Nico AB - In Fischer-Tropsch synthesis carbon monoxide and hydrogen are converted in a surface polymerisation reaction over a heterogeneous catalyst to mainly long chain hydrocarbons and water. Although all group VIII metals are reported to show activity in this process, only iron and cobalt are used on an industrial scale due to availability and costs. In order to minimise the costs of these catalysts it is generally important to increase the mass specific active surface area by dispersing the active material on an inert carrier. Recent studies on nano sized iron, cobalt, ruthenium and rhodium crystallites indicate that below a certain crystallite size they display a decrease in surface specific activity. This work aims to study the crystallite size effect of cobalt, supported on an industrially relevant carrier material, on activity and selectivity in the Fischer-Tropsch synthesis. DA - 2011 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2011 T1 - Preparation of nano and Angstrom sized cobalt ensembles and their performance in the Fischer-Tropsch synthesis TI - Preparation of nano and Angstrom sized cobalt ensembles and their performance in the Fischer-Tropsch synthesis UR - http://hdl.handle.net/11427/10462 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/10462
dc.identifier.vancouvercitationFischer N. Preparation of nano and Angstrom sized cobalt ensembles and their performance in the Fischer-Tropsch synthesis. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Chemical Engineering, 2011 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/10462en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Chemical Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherChemical Engineeringen_ZA
dc.titlePreparation of nano and Angstrom sized cobalt ensembles and their performance in the Fischer-Tropsch synthesisen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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