Hydrogenation catalysts comprising a mixed oxide comprising a promoter metal

Patent metadata

Field	Value
Publication number	US-2016288105-A1
Application number	US-201615185326-A
Country	US
Kind code	A1
Filing date	Jun 17, 2016
Priority date	Apr 28, 2014
Publication date	Oct 6, 2016
Grant date	—

Abstract

A process is disclosed for producing ethanol, comprising contacting hydrogen and a feed stream comprising acetic acid in a reactor in the presence of a catalyst comprising a binder and a mixed oxide comprising a promoter metal and tin, and preferably also comprising cobalt. The promoter metal is selected from the group consisting of rhenium, ruthenium, rhodium, palladium, osmium, iridium, platinum, and combinations thereof. The feed stream may comprises pure acetic acid or may comprise a mixture of 50 to 95 wt. % acetic acid and 5 to 50 wt. % ethyl acetate.

First claim

1 - 20 . (canceled)

21 . A catalyst for producing ethanol comprising:
a binder; a mixed oxide comprising cobalt and tin, wherein the mixed oxide is present in an amount from 70 to 85 wt. %, based on the total weight of the catalyst; and a promoter metal selected from the group consisting of rhenium, ruthenium, rhodium, palladium, osmium, iridium, platinum, and combinations thereof, wherein the promoter metal is present in an amount from 0.01 to 10 wt. %, based on the total weight of the catalyst.

22 . The catalyst of claim 21 , wherein the combined metal amount of the mixed oxide is from 50 to 70 wt. %, based on the total weight of the catalyst.

23 . The catalyst of claim 21 , wherein the mixed oxide is present in an amount of 80 wt. %, based on the total weight of the catalyst.

24 . The catalyst of claim 21 , wherein the promoter metal is selected from the group consisting of rhenium, ruthenium, and combinations thereof.

25 . The catalyst of claim 21 , wherein the promoter metal is present in an amount from 0.05 to 3 wt. %, based on the total weight of the catalyst.

26 . The catalyst of claim 21 , wherein the promoter metal is present in an amount of 1 wt. %, based on the total weight of the catalyst.

27 . The catalyst of claim 21 , wherein the promoter metal is in a reduced state.

28 . The catalyst of claim 21 , wherein the total tin loading of the catalyst is from 10 to 60 wt. %, based on the metal content of the catalyst.

29 . The catalyst of claim 21 , wherein the total cobalt loading of the catalyst is from 10 to 60 wt. %, based on the metal content of the catalyst.

30 . The catalyst of claim 21 , wherein the catalyst has a molar ratio of cobalt to tin from 1.5:1 to 1:1.

31 . The catalyst of claim 21 , wherein the mixed oxide further comprises nickel and wherein the total nickel loading of the catalyst is from 2 to 40 wt. %, based on the metal content of the catalyst.

32 . The catalyst of claim 21 , wherein the catalyst is substantially free of zinc, zirconium, cadmium, copper, manganese, and molybdenum.

33 . The catalyst of claim 21 , wherein the binder is selected from the group consisting of silica, aluminum oxide, and titania.

34 . The catalyst of claim 21 , wherein the mixed oxide is anhydrous.

35 . The catalyst of claim 21 , wherein the surface area of the catalyst is from 100 to 250 m 2 /g.

36 . The catalyst of claim 21 , wherein the pore volume of the catalyst is between 0.18 and 0.35 mL/g.

37 . The catalyst of claim 21 , wherein the pore diameters of the catalyst is from 6 to 8 nm.

38 . The catalyst of claim 21 , wherein the morphology of the catalyst is selected from the group consisting of pellets, extrudates, spheres, spray dried microspheres, rings, pentarings, trilobes, quadrilobes, multi-lobal shapes, and flakes.

Assignees

• Celanese Int Corp

Inventors

• Zhou Zhenhua
• Johnston Victor J
• Weiner Heiko

Classifications

• B01J35/026

  Operations & Transport · mapped topic

• B01J35/1038

  Operations & Transport · mapped topic

• B01J35/1061

  Operations & Transport · mapped topic

• B01J35/1019

  Operations & Transport · mapped topic

• B01J21/08

  Silica · CPC title