Direct and selective production of ethanol from acetic acid utilizing a platinum/ tin catalyst
AssigneeCelanese International Corporation
InventorsVictor J. Johnston, Laiyuan Chen, Barbara F. Kimmich, Josefina T. Chapman, James H. Zink
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Abstract
A process for the selective production of ethanol by vapor phase reaction of acetic acid over a hydrogenating catalyst composition to form ethanol is disclosed and claimed. In an embodiment of this invention reaction of acetic acid and hydrogen over a platinum and tin supported on silica, graphite, calcium silicate or silica-alumina selectively produces ethanol in a vapor phase at a temperature of about 250° C.
Claims20
A process for selective and direct formation of ethanol from acetic acid a carbon source comprising:
- (a) converting the carbon source into acetic acid;
- and
- (b) contacting a feed stream containing the acetic acid and hydrogen in vapor form at an elevated temperature with a hydrogenating catalyst consisting essentially of platinum and tin on a catalyst support selected from the group consisting of silica, alumina, silica-alumina, calcium silicate, carbon, zirconia, titania and combinations thereof, wherein at least about 80% by weight of the acetic acid consumed is converted to ethanol.
A process for selective and direct formation of ethanol from acetic acid carbon source comprising:
- (a) converting the carbon source into acetic acid;
- and (b) contacting a feed stream containing the acetic acid and hydrogen in vapor form at an elevated temperature with a hydrogenating catalyst consisting essentially of platinum and tin on a catalyst support, wherein the catalyst contains from about 0.5 weight percent to about 1 weight percent of platinum.
Dependencies are inferred from the claim text.