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Prospective structured support and nanostructured active phase for oil upgrading Open Access


Other title
Structured support
Sintered Metal Fibers
Ir nanoparticles
Type of item
Degree grantor
University of Alberta
Author or creator
Chhabra, Arvind
Supervisor and department
Semagina, Natalia (Chemical and Materials Engineering)
Nychka, John A. (Chemical and Materials Engineering)
Examining committee member and department
Nazemifard, Neda (Chemical and Materials Engineering)
Prasad, Vinay (Chemical and Materials Engineering)
Department of Chemical and Materials Engineering
Chemical Engineering
Date accepted
Graduation date
Master of Science
Degree level
Selective ring opening of naphthenic compounds is a preferred reaction to increase cetane number of fuels. Indan ring opening was studied using both structured and powdered catalysts. A structured support of Sintered Metal Fibers (SMF) filter materials (FeCrAl alloy) was surface-oxidized to form α-alumina whiskers. Practical conversions were achieved with Ir nanoparticles preformed in the presence of polyvinylpyrrolidone stabilizer. The SMF unique structure was found to eliminate mass and heat transfer limitations. Due to the low surface area of SMF, Ir nanoparticle agglomeration was observed. Temperature effects on the product yield and conversion were evaluated. The catalyst thermal pretreatment was shown to remove 81% of the Ir organic stabilizer. The study may pave the way to the development of structured catalysts with enhanced mass and heat transfer limitations for fast catalytic reactions requiring low loading of catalytically active phase.
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File title: Prospective Structured Materials for Oil Upgrading: Size-controlled Nano Particles and arranged supports
File author: Arvind Chhabra
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