Method for carbon dioxide hydrogenation of syngas

Patent metadata

Field	Value
Publication number	US-2016332874-A1
Application number	US-201515109725-A
Country	US
Kind code	A1
Filing date	Jan 6, 2015
Priority date	Jan 6, 2014
Publication date	Nov 17, 2016
Grant date	—

Abstract

Processes for making a syngas mixture including hydrogen, carbon monoxide, and carbon dioxide are provided. In an exemplary embodiment, the processes include contacting a gaseous feed mixture that includes carbon dioxide, hydrogen and methane with a metal oxide catalyst that includes molybdenum and nickel. Catalysts for making a syngas mixture, including molybdenum and nickel are also provided.

First claim

I/We claim:

1 . A process of making a syngas mixture comprising hydrogen and carbon monoxide, comprising: contacting a gaseous feed mixture that comprises carbon dioxide, hydrogen, and methane with a metal oxide catalyst comprising molybdenum and nickel to produce the syngas mixture.

2 . The process of claim 1 , wherein the process is carried out at a temperature of about 600° C. to about 800° C.

3 . The process of claim 1 , wherein the metal oxide catalyst further comprises a support material.

4 . The process of claim 3 , wherein the support material is selected from the group consisting of aluminum oxide, magnesium oxide, lanthanum oxide, and silica.

5 . The process of claim 1 , wherein the syngas mixture further comprises methane and carbon dioxide.

6 . The process of claim 1 , wherein the syngas mixture has a stoichiometric number of about 1.0 to about 3.0.

7 . The process of claim 1 , wherein the carbon dioxide, methane, and hydrogen and are present in the gaseous feed mixture in a ratio of about 1.0:1.0:2.0.

8 . The process of claim 1 , wherein the process is carried out at a temperature of about 720° C.

9 . The process of claim 1 , wherein the process is carried out at atmospheric pressure.

10 . The process of claim 1 , wherein the contact time for contacting the gaseous feed mixture with the catalyst is about 0.5 seconds to about 7.5 seconds.

11 . A catalyst for making a syngas mixture, comprising molybdenum and nickel, wherein the molybdenum is present in an amount of about 2 wt % to about 20 wt % and the nickel is present in an amount of about 2 wt % to about 25 wt %, based upon a total weight of the catalyst.

12 . The catalyst of claim 11 , wherein the catalyst further comprises a support.

13 . The catalyst of claim 12 , wherein the support material is selected from the group consisting of aluminum oxide, magnesium oxide, lanthanum oxide, and silica.

14 . The process of claim 1 , wherein the nickel is present in an amount of 12 wt % to about 15 wt %, based upon a total weight of the catalyst.

15 . A process of making a syngas mixture comprising hydrogen and carbon monoxide, comprising: contacting a gaseous feed mixture that comprises carbon dioxide, hydrogen, and methane with a metal oxide catalyst to produce the syngas mixture;
wherein the process is carried out at a temperature of about 600° C. to about 800° C.; and wherein the metal oxide catalyst comprises molybdenum in an amount of about 2 wt % to about 20 wt % and nickel in an amount of about 2 wt % to about 25 wt %, based upon a total weight of the metal oxide catalyst.

16 . The process of claim 15 , wherein the process is carried out at atmospheric pressure.

17 . The process of claim 16 , wherein the contact time for contacting the gaseous feed mixture with the catalyst is about 0.5 seconds to about 7.5 seconds.

18 . The process of claim 15 , wherein the contact time for contacting the gaseous feed mixture with the catalyst is about 0.5 seconds to about 7.5 seconds.

Assignees

• Saudi Basic Ind Corp

Inventors

• Mamedov Aghaddin

Classifications

• Y02P20/52

  using catalysts, e.g. selective catalysts · CPC title

• C10K3/026

  Increasing the carbon monoxide content, e.g. reverse water-gas shift [RWGS] · CPC title

• C01B2203/1058

  Nickel catalysts · CPC title

• C01B2203/1041

  Composition of the catalyst · CPC title

• B01J23/8872

  Alkali or alkaline earth metals · CPC title