0312035 - ÚCHP 2009 RIV SK eng C - Conference Paper (international conference)
Gulková, Daniela - Vít, Zdeněk
Effect of Pt Loading on HDS and HDN Activity of Silica-Alumina Supported Pt-Mo- Sulfide Catalysts.
[Vliv platiny na aktivitu Pt-Mo katalyzatorů, nanesených na silica-alumine, v HDS a HDN reakcích.]
Book of Abstracts. Bratislava: Slovak University of Technology, 2008 - (Horváth, B.; Hronec, M.), s. 244-249. ISBN 978-80-227-2923-9.
[9th Pannonian International Symposium On Catalysis. Štrbské Pleso (SK), 08.09.2008-12.09.2008]
R&D Projects: GA ČR GA104/06/0870
Institutional research plan: CEZ:AV0Z40720504
Keywords : silica-alumina * HDS catalyst * platinum
Subject RIV: CF - Physical ; Theoretical Chemistry

Platinum has recently been studied as promoter of the Mo sulfide phase. Lately we found that a Pt-Mo/alumina catalyst exhibited unusual activity features. In comparison to conventional CoMo and NiMo catalysts, the HDN of pyridine was easier than HDS of thiophene, which resulted in a high HDN/HDS selectivity. It is known that acidity of supports plays a positive role both in HDS and HDN. Thus, the Pt-Mo system was now deposited on a more acidic support than alumina, i.e. on an amorphous silica-alumina in attempt to further enhance the activities in both reactions. The objective was to find how acidic support may affect the catalytic properties of the Pt-Mo system.

Průzkum hydrodesulfurizace a její inhibice hydrogenací (denitrogenací) na katalyzátorech obsahujících malá množství platiny. Vliv aktivní fáze, typ a modifikace nosiče silica - alumina, studium synergického efektu a inhibiční vliv HDN na HDS. Získané výsledky porovnány s výsledky získanými na konvenčních CoMo (NiMo) katalyzátorech.
Permanent Link: http://hdl.handle.net/11104/0163204