Electrochemical co-production of chemicals with sulfur-based reactant feeds to anode

摘要

The present disclosure includes a system and method for producing a first product from a first region of an electrochemical cell having a cathode and a second product from a second region of the electrochemical cell having an anode. The method may include a step of contacting the first region with a catholyte comprising carbon dioxide. The method may include another step of contacting the second region with an anolyte comprising a sulfur-based reactant. Further, the method may include a step of applying an electrical potential between the anode and the cathode sufficient to produce a first product recoverable from the first region and a second product recoverable from the second region. An additional step of the method may include removing the second product and an unreacted sulfur-based reactant from the second region and recycling the unreacted sulfur-based reactant to the second region.

主权项

1. A method for producing a first product from a first region of an electrochemical cell having a cathode and a second product from a second region of the electrochemical cell having an anode, the method comprising the steps of:
contacting the first region with a catholyte comprising carbon dioxide; contacting the second region with an anolyte comprising a sulfur-based reactant and a nitrogen-based reactant; applying an electrical potential between the anode and the cathode sufficient to reduce carbon dioxide at the cathode to produce a first product recoverable from the first region and a second product recoverable from the second region; removing the second product, an unreacted sulfur-based reactant and an unreacted nitrogen-based reactant from the second region; recycling the unreacted sulfur-based reactant and the unreacted nitrogen-based reactant to the second region; removing the first product from the first region; reacting the first product with water to produce carbon dioxide; and recycling the carbon dioxide to the first region.