Novel modular electrocatalytic processing for simultaneous conversion of carbon dioxide and wet shale gas

Patent metadata

Field	Value
Publication number	US-2021262104-A1
Application number	US-201917284589-A
Country	US
Kind code	A1
Filing date	Oct 30, 2019
Priority date	Oct 30, 2018
Publication date	Aug 26, 2021
Grant date	—

Abstract

An apparatus for converting carbon dioxide and natural gas liquids into other chemicals and/or fuels, comprising at least one electrochemical cell, wherein the electrochemical cell reduces the endothermic load associated with electrochemical CO2 reduction, and a method for converting carbon dioxide and natural gas liquids into carbon monoxide and other chemicals and/or fuels, comprising converting CO2 into CO and converting C2H6 into C2H4 at a temperature in the range of 650° C.-750° C.

First claim

What is claimed is:

1 . An apparatus for converting carbon dioxide and natural gas liquids into other chemicals and/or fuels, comprising:
at least one electrochemical cell; wherein the electrochemical cell reduces the endothermic load associated with electrochemical CO 2 reduction.

2 . The apparatus of claim 1 , wherein the at least one electrochemical cell comprises a first electrochemical cell and a second electrochemical cell.

3 . The apparatus of claim 2 , wherein each of the first electrochemical cell and second electrochemical cell includes a cathode, a membrane, and an anode.

4 . The apparatus of claim 2 , wherein the first electrochemical cell is adapted to convert CO 2 into CO and convert C 2 H 6 into C 2 H 4 , and the second electrochemical cell is adapted to offset voltage and heat requirements of the first electrochemical cell.

5 . The apparatus of claim 4 , wherein the conversion of CO 2 into CO and conversion C 2 H 6 into C 2 H 4 in the first electrochemical cell occurs simultaneously.

6 . The apparatus of claim 4 , wherein the second electrochemical cell is adapted to convert C 2 H 6 into C 2 H 4 .

7 . The apparatus of claim 1 , wherein the at least one electrochemical cell is at least one component of an intermediate temperature solid oxide electrolyzer cell.

8 . The apparatus of claim 7 , wherein the temperature for operation of the intermediate temperature solid oxide electrolyzer cell is in the range of 650° C.-750° C.

9 . A method for converting carbon dioxide and natural gas liquids into carbon monoxide and other chemicals and/or fuels, comprising:
converting CO 2 into CO and converting C 2 H 6 into C 2 H 4 at a temperature in the range of 650° C.-750° C.

10 . The method of claim 9 , wherein converting of CO 2 into CO and converting of C 2 H 6 into C 2 H 4 occurs via a first electrochemical cell, and wherein the method further comprises offsetting voltage and heat requirements of the first electrochemical cell.

11 . The method of claim 10 , wherein offsetting voltage and heat requirements of the first electrochemical cell occurs via use of a second electrochemical cell.

12 . The method of claim 11 , further comprising converting C 2 H 6 into C 2 H 4 via the second electrochemical cell.

13 . The method of claim 9 , further comprising reducing an endothermic load associated with electrochemical CO 2 reduction that occurs during the conversion of CO 2 to CO.

14 . The method of claim 9 , wherein the converting of CO 2 into CO and converting of C 2 H 6 into C 2 H 4 occurs simultaneously.

15 . The method of claim 9 , wherein C 2 H 4 generated at the at least one electrochemical cell upon conversion of C 2 H 6 into C 2 H 4 is subsequently converted into a fuel or fuels using an oligomerization catalyst.

16 . The method of claim 15 , wherein flue gas is the source of CO 2 .

17 . The method of claim 16 , further comprising removing N 2 from the product of the electrochemical cell.

18 . The method of claim 17 , further comprising use of a complex containing cuprous ammonium salts of organic acids to form complexes with CO in order to assist in removing N 2 .

Assignees

• Univ Ohio

Inventors

• Trembly Jason Patrick

Classifications

• C25B3/25

  Reduction · CPC title

• C25B9/19

  with diaphragms · CPC title

• C25B1/00 Primary

  Electrolytic production of inorganic compounds or non-metals · CPC title

• C25B9/70

  Assemblies comprising two or more cells · CPC title

• C25B1/23 Primary

  Carbon monoxide or syngas · CPC title