Patent ID: 8658843
Filing Date: 2014-02-25
Classification: B01J,C07C

Abstract:
1. A process for producing ethanol comprising the steps of: passing a gaseous stream comprising hydrogen and an alkanoic acid in the vapor phase over a hydrogenation catalyst to form a product comprising an alcohol and less than about 0.25% ether based on the total weight of the product, wherein the hydrogenation catalyst is produced by the process comprising the steps of: impregnating a support modifier from ammonium metatungstate, ammonium heptamolybdate tetrahydrate, silicotungstic acid hydrate, phosphotungstic acid, silicomolybdic acid, phosphomolybdic acid, niobium oxalate hexahydrate, or vanadium oxide on a support to form a first impregnated support; calcining the first impregnated support to form a calcined support; impregnating one or more active metals from one or more metal precursors on the calcined support to form a second impregnated support, wherein the one or more active metals are selected from the group consisting of iron, cobalt, nickel, ruthenium, rhodium, platinum, palladium, osmium, iridium, titanium, zinc, chromium, molybdenum, tungsten, tin, lanthanum, cerium, manganese, and gold; and calcining the second impregnated support to form the catalyst.