Oxidative dehydrogenation catalyst
AssigneeNOVA Chemicals (International) S.A.
InventorsVasily Simanzhenkov, Xiaoliang Gao, David Sullivan, Hanna Drag, Leonid Modestovich Kustov, Aleksey Victorovich Kucherov, Elena Dmitrievna Finashina
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Abstract
Oxidative dehydrogenation catalysts comprising MoVNbTeO having improved consistency of composition and a 25% conversion of ethylene at less than 420° C. and a selectivity to ethylene above 95% are prepared by treating the catalyst precursor with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor prior to calcining.
Claims10
A method for the oxidative dehydrogenation of a mixed feed comprising ethane and oxygen in a volume ratio from 70:30 to 95:5, wherein the method comprises passing the mixed feed over a calcined oxidative dehydrogenation catalyst of the empirical formula:
- Mo1.0V0.22-0.33Te0.10-0.16Nb0.15-0.19Od
- wherein d is a number to satisfy the valence of the oxide and the empirical formula is determined by PIXE;
- and
- wherein the calcined oxidative dehydrogenation catalyst is formed from a catalyst precursor that is treated with H2O2 and wherein the catalyst precursor is calcined at a temperature from 200° C. to 600° C.
Dependencies are inferred from the claim text.