Methods for producing C2 to C5 paraffins using a hybrid catalyst comprising a high acidity microporous component

Patent metadata

Field	Value
Publication number	US-12227465-B2
Application number	US-202017613241-A
Country	US
Kind code	B2
Filing date	May 7, 2020
Priority date	May 23, 2019
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

A method for preparing C 2 to C 5 paraffins including introducing a feed stream of hydrogen gas and a carbon-containing gas selected from carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor. Converting the feed stream into a product stream that includes C 2 to C 5 paraffins in the reaction zone in the presence of a hybrid catalyst. The hybrid catalyst including a microporous catalyst component; and a metal oxide catalyst component. The metal oxide catalyst component including a metal component present on a metal oxide support material. The metal oxide support material includes at least one oxide of a metal selected from Group 4 of the IUPAC periodic table of elements. The product stream has a C 3 /C 2 carbon molar ratio greater than or equal to 4.0.

First claim

The invention claimed is:

1. A method for preparing C 2 to C 5 paraffins comprising:
introducing a feed stream comprising hydrogen gas and a carbon-containing gas selected from the group consisting of carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor; and
converting the feed stream into a product stream comprising C 2 to C 5 paraffins in the reaction zone in the presence of a hybrid catalyst, the hybrid catalyst comprising:
a microporous catalyst component; and
a metal oxide catalyst component comprising a metal component present on a metal oxide support material, wherein the metal oxide support material comprises at least one oxide of a metal selected from Group 4 of the IUPAC periodic table of elements,

wherein the product stream has a C 3 /C 2 carbon molar ratio greater than or equal to 4.0.

2. The method of claim 1 , wherein the microporous catalyst component is a molecular sieve having 8-MR pore openings.

3. The method of claim 1 , wherein the microporous catalyst component is silico-aluminate having a Chabazite structure.

4. The method of claim 1 , wherein the microporous catalyst component is SSZ-13.

5. The method of claim 1 , wherein a Brönsted acid site concentration of the microporous catalyst component is greater than or equal to 0.25 mmol/g, and a Brönsted acid site strength from 380° C. to 500° C. measured as NH 3 -desorption at rate of 5° C./min.

6. The method of claim 1 , wherein a Brönsted acid site concentration of the microporous catalyst component is greater than or equal to 0.35 mmol/g, and a Brönsted acid site strength from 400° C. to 500° C. measured as NH 3 -desorption at rate of 5° C./min.

7. The method of claim 1 , where in the metal component of the metal oxide catalyst component is selected from the group consisting of zinc, gallium, indium, lanthanum, chromium and mixtures thereof.

8. The method of claim 1 , wherein the metal oxide support material comprises titania or zirconia.

9. The method of claim 1 , wherein the metal component comprises from 0.1 wt % to 10.0 wt % of the metal oxide catalyst component.

10. The method of claim 1 , wherein an amount of C 3 paraffins in the product stream as a carbon mole percent of a total of C 1 to C 5 hydrocarbons in a product stream is greater than or equal to 50.0 mol %.

11. The method of claim 1 , wherein an amount of C 3 paraffins in the product stream as a carbon mole percent of a total of C 1 to C 5 hydrocarbons in a product stream is greater than or equal to 70.0 mol %.

12. The method of claim 1 , wherein the product stream has a C 3 /C 2 carbon molar ratio greater than or equal to 5.0.

13. The method of claim 1 , wherein the product stream has a C 3 /C 2 carbon molar ratio greater than or equal to 8.0.

Assignees

• Dow Global Technologies Llc

Inventors

• Kirilin Alexey
• Chojecki Adam
• Dewilde Joseph F
• Pollefeyt Glenn
• Nieskens Davy L S
• Malek Andrzej

Classifications

• C10G2/334

  containing molecular sieve catalysts · CPC title

• C10G2/33

  characterised by the catalyst used · CPC title

• C10G2/50

  from carbon dioxide with hydrogen · CPC title

• B01J35/635

  0.5-1.0 ml/g · CPC title

• B01J35/633

  less than 0.5 ml/g · CPC title