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Preparation and Properties of Pt-Mo Sulfide System Supported on Mesoporous Silica-Alumina
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SYSNO ASEP 0055053 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Preparation and Properties of Pt-Mo Sulfide System Supported on Mesoporous Silica-Alumina Title Příprava a vlastnosti Pt-Mo sulfidového systému naneseného na mesoporesní silica-alumině Author(s) Gulková, Daniela (UCHP-M) RID, ORCID, SAI
Vít, Zdeněk (UCHP-M) RID, SAISource Title Studies in Surface Science and Catalysis - ISSN 0167-2991
Roč. 162, - (2006), s. 489-496Number of pages 8 s. Action International Symposium Scienctific Bases for Heterogeneous Catalysts /9./ Event date 10.09.2006-14.09.2006 VEvent location Louvain-la-Neuve Country BE - Belgium Event type EUR Language eng - English Country NL - Netherlands Keywords silica-alumina ; Pt-Mo ; hydrotreating Subject RIV CI - Industrial Chemistry, Chemical Engineering R&D Projects GA104/06/0870 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40720504 - UCHP-M (2005-2011) Annotation The preparation and properties of Mo and Pt-Mo systems (14 wt.% Mo, ? 0.5 wt.% Pt) on a mesoporous silica-alumina (MSA) were studied. The Mo catalysts were characterized by X-Ray diffraction, N2 adsorption-desorption and transmission electron microscopy (TEM). The sulfided catalysts were tested in the simultaneous HDS of thiophene and HDN of pyridine. Deposition of ammonium heptamolybdate on MSA followed by sulfidation at 400oC for 4 h gave a well dispersed MoS2 phase, as confirmed by TEM. The addition of about 0.5 % Pt to the sulfided Mo(S)/MSA led to the significant improvements of HDS and HDN activities. Pt(acac)2 was more efficient Pt precursor than H2PtCl6 and Pt(NH3)4Cl2. The temperature of the sulfidation and the composition of the sulfiding gas during activation of the Pt promoted catalyst had only smaller influence on activity. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2007
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