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Method and system for the electrochemical co-production of halogen and carbon monoxide for carbonylated products

  • US 8,691,069 B2
  • Filed: 12/21/2012
  • Issued: 04/08/2014
  • Est. Priority Date: 07/26/2012
  • Status: Active Grant
First Claim
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1. A method for co-producing carbon monoxide from a first region of an electrochemical cell having a cathode and a halogen from a second region of the electrochemical cell having an anode, the method comprising the steps of:

  • contacting the first region of the electrochemical cell with a catholyte comprising carbon dioxide;

    contacting the second region of the electrochemical cell with an anolyte comprising a recycled reactant, wherein the recycled reactant is HX, where X is selected from the group consisting of F, Cl, Br, and I; and

    applying an electrical potential between the anode and the cathode of the electrochemical cell sufficient to reduce the carbon dioxide and co-produce the carbon monoxide recoverable from the first region of the electrochemical cell and the halogen recoverable from the second region of the electrochemical cell.

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