Methods for the electroreduction of carbon dioxide to value added chemicals
OwnerPaul J. A. Kenis, Sumit Verma +1inventors
InventorsPaul J. A. Kenis, Sumit Verma, Shawn Lu
Life of this patent
Estimating the term…
Abstract
The present disclosure provides a method of electroreducing carbon dioxide (CO2). The method of electroreducing carbon dioxide may include feeding a first stream comprising carbon dioxide into a chamber through a chamber inlet, the chamber containing a gas diffusion cathode and a gas diffusion anode; feeding a second stream comprising glycerol or glucose into the chamber, the second stream having a pH of 12 to 14; and applying an electrical potential between the gas diffusion anode and the gas diffusion cathode to reduce the carbon dioxide and oxidize the glycerol or glucose.
Claims20
A method of electroreducing carbon dioxide, comprising:
- feeding a first stream comprising carbon dioxide into a chamber through a chamber inlet, the chamber containing a gas diffusion cathode and a gas diffusion anode;
- feeding a second stream comprising glycerol or glucose into the chamber, the second stream having a pH of 12 to 14;
- and
- applying an electrical potential between the gas diffusion anode and the gas diffusion cathode to reduce the carbon dioxide and oxidize the glycerol or glucose.
A method of electroreducing carbon dioxide, comprising:
- feeding a gas stream comprising carbon dioxide into chamber divided into a cathode compartment and an anode compartment by an ion permeable membrane, the anode compartment containing a gas diffusion anode and the cathode compartment containing a gas diffusion cathode, the gas diffusion cathode dividing the cathode compartment into a gaseous region and a liquid region, wherein the gas stream is fed into the gaseous region;
- feeding a catholyte stream into the liquid region of the cathode compartment;
- feeding an anolyte stream comprising glycerol into the anode compartment to contact the gas diffusion anode;
- and
- applying an electrical potential between the gas diffusion anode and the gas diffusion cathode to reduce the carbon dioxide to a reduction product and oxidize the glycerol to an oxidation product,
- wherein an onset cell potential for formation of the reduction product is from −1.5 V to −0.5 V.
Dependencies are inferred from the claim text.