Mixed metal iron oxides and uses thereof

Patent metadata

Field	Value
Publication number	US-2016158734-A1
Application number	US-201414908852-A
Country	US
Kind code	A1
Filing date	Jul 31, 2014
Priority date	Jul 31, 2013
Publication date	Jun 9, 2016
Grant date	—

Abstract

This invention is directed to novel mixed transition metal iron (II/III) catalysts for the extraction of oxygen from CO 2 and the selective reaction with organic compounds.

First claim

1 . A mixed transition metal iron (II/III) catalyst for catalyzing CO 2 oxidation of carbon or an organic compound.

2 . The mixed transition metal iron (II/III) catalyst of claim 1 , wherein the mixed transition metal iron (II/III) catalyst is an iron (II/III) and a second metal selected from the group consisting of Ag, Bi, Co, Cu, La, Mn, Sn, Ru, and Zn.

3 . The mixed transition metal iron (II/III) catalyst of claim 1 , further comprising a support.

4 . The mixed transition metal iron (II/III) catalyst of claim 1 , further comprising an alkali or alkaline-earth element promoter.

5 . The mixed transition metal iron (II/III) catalyst of claim 3 , wherein the support is Al 2 O 3 , SiO 2 , TiO 2 , ZrO 2 or a mixture thereof.

6 . The mixed transition metal iron (II/III) catalyst of claim 5 , having the formula Fe 2 O 3 (SnO 2 ) 0.1-10 (Al 2 O 3 ) 0.1-10 .

7 . The mixed transition metal iron (II/III) catalyst of claim 6 , having the formula Fe 2 O 3 (SnO 2 ) 1.0-3.0 (Al 2 O 3 ) 1.0-3.0 .

8 . The mixed transition metal iron (II/III) catalyst of claim 2 , having the formula (RuO 2 ) 0.001-0.2 Fe 2 O 3 .

9 . The mixed transition metal iron (II/III) catalyst of claim 2 , having the formula (RuO 2 ) 0.005-0.05 Fe 2 O 3 .

10 . A method for converting CO 2 and carbon to carbon monoxide which comprises contacting the mixed transition metal iron (II/III) catalyst of claim 1 with an appropriate CO 2 feed stream under appropriate temperature and pressure conditions.

11 . The method of claim 10 , wherein the carbon, the mixed transition metal iron (II/III) catalyst, and the appropriate CO 2 feed stream are reacted together at the same time.

12 . The method of claim 11 , wherein the carbon, the mixed transition metal iron (II/III) catalyst, and the appropriate CO 2 feed stream are reacted together in a fluidized bed.

13 . A method for converting a hydrocarbon to an oxygenated hydrocarbon which comprises contacting the mixed transition iron (II/III) metal catalyst of claim 1 with the hydrocarbon and an appropriate CO 2 feed stream under appropriate conditions so as to form the oxygenated hydrocarbon.

14 . The method of claim 13 , wherein the hydrocarbon is an alkane, an alkene, an alkyne, an aromatic compound, a cyclic compound, a polyaromatic compound or a polycyclic compound.

15 . The method of claim 14 , wherein the alkane is butane, ethane, methane, or propane.

16 . The method of claim 14 , wherein the alkene is ethylene or propylene.

17 . The method of claim 13 , wherein the oxygenated hydrocarbon is an alcohol, aldehyde, an anhydride, a carboxylic acid, an ester, an ether, an epoxide, or a ketone.

18 . The method of claim 17 , wherein the epoxide is ethylene oxide or propylene oxide.

19 . A method for oxidative dehydrogenation (ODH) of a first hydrocarbon comprising contacting the mixed transition iron (II/III) metal catalyst of claim 1 with the first hydrocarbon and an appropriate CO 2 feed stream under appropriate conditions so as to form a dehydrogenated second hydrocarbon.

20 . The method of claim 20 , wherein the first hydrocarbon is an alkane, an alkene, an alkyne, an aromatic compound, a cyclic compound, a polyaromatic compound or a polycyclic compound.

21 . The method of claim 20 , wherein the alkane is methane, ethane, propane or butane.

22 . The method of claim 20 , wherein the cyclic compound is cyclohexane.

23 . The method of claim 20 , wherein the aromatic compound is ethyl benzene.

24 . The method of claim 19 , wherein the first hydrocarbon is methane and the second hydrocarbon is ethane or a higher molecular weight hydrocarbon.

Assignees

• Res Triangle Inst

Inventors

• Shen Jian-Ping
• Lail Marty
• Turk Brian
• Mobley Paul D
• Norman Jason S
• Douglas Laura
• Peters Jonathan

Classifications

• B01J23/74

  Iron group metals · CPC title

• C07C2521/08

  Silica · CPC title

• C01B2203/0238

  the reforming step being a carbon dioxide reforming step · CPC title

• B01J23/835 Primary

  with germanium, tin or lead · CPC title

• B01J23/8892

  Manganese · CPC title