Copper modified catalysts for oxidative dehydrogenation

An oxidative dehydrogenation catalyst comprising

• between 0.05 wt % and 20 wt % manganese;
• between 0.001 wt % and 10 wt % copper;
• optionally, between 0.005 wt % and 0.2 wt % of a promoter metal selected from the group consisting of palladium, iridium, rhodium, ruthenium, platinum, and any combination thereof;
• and
• a support comprising zirconia, alumina, or combinations thereof.

An oxidative dehydrogenation catalyst comprising

• manganese;
• copper;
• a promoter metal selected from the group consisting of palladium, iridium, platinum, rhodium, ruthenium, and combinations thereof;
• and
• a refractory support,
• wherein the catalyst has a molar ratio of copper to manganese greater than about 1:20.

A method for making an oxidative dehydrogenation catalyst comprising

• impregnating a base metal-containing precursor onto a support;
• calcining said base metal-modified support;
• impregnating a solution comprising copper and optionally a Groups 8, 9, or 10 promoter metal, onto said base metal-modified support to form a copper-modified catalyst precursor;
• calcining said copper-modified catalyst precursor;
• and
• reducing said calcined catalyst precursor to obtain a copper-modified catalyst.