Activity of CoMo/MSA Catalysts in Benzothiophene Hydrodesulfurization, Cumene Cracking and Cyclohexene Isomerization

0381783 - ÚCHP 2013 CZ eng C - Konferenční příspěvek (zahraniční konf.)
Gulková, Daniela - Kaluža, Luděk - Zdražil, Miroslav - Vít, Zdeněk
Activity of CoMo/MSA Catalysts in Benzothiophene Hydrodesulfurization, Cumene Cracking and Cyclohexene Isomerization.
Final Program. Praha: Orgit, 2012, P3.13. ISBN 978-80-905035-1-9.
[International Congress of Chemical and Process Engineering CHISA 2012 and 15th Conference PRES 2012 /20./. Prague (CZ), 25.08.2012-29.08.2012]
Grant CEP: GA ČR GAP106/11/0902; GA ČR GA104/09/0751
Institucionální podpora: RVO:67985858
Klíčová slova: catalyst * hds * izomerization
Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství
www.chisa.cz/2012

It was found that MoO3 does not adsorb onto pure SiO2 despite its relatively high surface area (400 m2/g). In contrast, SA52, MSA30, and MSA19 with surface areas 430, 580 and 600 m2/g adsorbed about 14, 7 and 3 wt. % of MoO3, respectively. The content of Al2O3 in the SA based materials thus well correlated with the adsorption loadings of MoO3 achieved by the saturation experiments. Moreover, it was acquired that the highest dispersion and HDS activities were achieved over catalysts containing dealuminated MSA supports despite of relatively low loadings of Mo. After Co deposition, the weight normalized activities in BT HDS increased 2.2 and 4.3 times on effective MoS2 promotion by Co on more acidic supports. Furthermore, those catalysts keep the high acidities of the original supports, as it was determined by cyclohexene isomerization and cumene cracking, while industrial reference CoMo catalysts supported onto gamma-Al2O3 was found to exhibit low acidity.
Trvalý link: http://hdl.handle.net/11104/0212174