Transition metal oxide catalysts and uses thereof

Details Transition metal oxide catalysts and uses thereof Transition metal oxide catalysts and uses thereof

B - Operations, Transporting

01

J

196/105, 196/130

B01J 23/16 (2006.01) C10G 11/04 (2006.01)

Patent

CA 1146933

ABSTRACT OF THE DISCLOSURE An acid catalyst comprising one or more catalytic components selected from the group consisting of oxides of tungsten, niobium and mixtures thereof and tungsten or niobium oxides in combination with one or more additional metal oxides selected from the group consisting of tantalum oxide, hafnium oxide, chromium oxide, titanium oxide and zirconium oxide supported on an inorganic refractory oxide support, in one embodiment the support is one which is not in itself an acid cracking catalyst. In another embodiment the support may be itself a silica-containing acid cracking catalyst, provided that the silica content thereof is less than 50 wt. %. These catalysts are useful for hydrocarbon conversion processes such as cracking and, during catalyst regeneration, one may simul- taneously produce a low BTU fuel gas. They exhibit enhanced activity and selectivity and resistance to coke make compared to conventional acid catalysts.

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