Method of and apparatus for utilizing and recovering co2 combustion exhaust gas
CA 2025654 C · Owner: Nakazawa, Kenzo · Inventors: Miyauchi, Toshio; Hirata, Tetsuya; Uematsu, Hiroyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of recovering carbon dioxide gas from the combustion exhaust gas of fossil fuel, using a combustion equipment, wherein fuel gas is supplied to an anode chamber of a molten carbonate fuel cell and oxidizing gas is supplied to a cathode chamber of the fuel cell, the combustion exhaust gas from the combustion equipment is supplied to the cathode chamber as part of the oxidizaing gas, C02 in the combustion exhaust gas is allowed to react with 02 in the oxidizing gas at the cathode to produce carbonate ion which is allowed to, pass through the electrolyte of the fuel cell and to reach the anode, which the carbonate ion is allowed to react with hydrogen in the fuel gas to produce C02 and …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed September 18, 1990 and granted December 1, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 18, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 18, 2012.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.