Patent ID: 8772553
Filing Date: 2014-07-08
Classification: C07C,Y02E

Abstract:
1. A process for producing ethanol, comprising contacting hydrogen with a feed stream comprising acetic acid and/or ethyl acetate in a reactor at a temperature greater than 225° C. in the presence of a catalyst, under conditions effective to form ethanol, provided that the liquid hourly space velocity of the feed stream to the reactor is from 0.2 hr −1 to 1 hr −1 , wherein the catalyst comprises a precious metal and one or more active metals on a modified support, wherein the modified support comprises (i) support material, and (ii) a support modifier comprising a metal selected from the group consisting of tungsten, molybdenum, vanadium, niobium and tantalum, and further wherein the one or more active metals are selected from the group consisting of copper, iron, cobalt, vanadium, nickel, titanium, zinc, chromium, molybdenum, tungsten, tin, lanthanum, cerium, manganese and mixtures thereof.