OXIDATIVE DEHYDROGENATION CATALYST

摘要

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.

主权项

1. A method to improve the consistency of an oxidative dehydrogenation catalyst of the empirical formula (measured by PIXE);
Mo1.0V0.22-0.33Te0.10-0.16Nb0.15-0.19Od where d is a number to satisfy the valence of the oxide comprising treating a precursor prior to calcining with H2O2 in an amount equivalent to 0.30-2.8 mL H2O2 of a 30% solution per gram of catalyst precursor.