Means and method for reducing carbon dioxide to a product

Details Means and method for reducing carbon dioxide to a product Means and method for reducing carbon dioxide to a product

1985-06-06

1987-06-16

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204 72, 204263, 204265, C25B 300

Patent

active

046734732

ABSTRACT:
Apparatus for reducing carbon dioxide to the product includes a reduction cell which has a dual porosity cathode, a catholyte chamber having an inlet, a passageway through which passes an electrolyte, a dual porosity cathode separating the passageway from the catholyte chamber, an anolyte chamber has an inlet and an outlet. A porous anode with a hydrophobic barrier separates the passageway from the anolyte chamber. A source provides a d.c. voltage across the cathode and the anode. Water is provided to the inlet of the anolyte chamber, while an electrolyte is provided to the passageway. Carbon dioxide is provided to the inlet of the catholyte chamber so that the carbon dioxide is electrochemically reduced within the dual porosity cathode with the electrolyte and hydrogen ions so as to cause the reduction of the carbon dioxide to a product and to cause oxygen to be emitted from the outlet of the anode chamber. The product is removed from the electrolyte after leaving the electrolytic cell.

REFERENCES:
patent: 3220941 (1965-11-01), Osborne
patent: 3766027 (1973-10-01), Gregory
patent: 3959094 (1976-11-01), Steinberg
patent: 4219392 (1980-08-01), Halmann
patent: 4240882 (1980-12-01), Ang et al.
patent: 4381978 (1983-05-01), Gratzel et al.
patent: 4523981 (1985-06-01), Ang et al.

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