Process for purifying high-temperature producing gases and composite power plant with coal gasification
CA 2036052 C · Owner: Izumi, Jun · Inventors: Suehiro, Mitsugi; Mitsuoka, Shigeaki; Izumi, Jun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a process for purifying a high temperature reducing gas by removing sulfur compounds contained in the reducing gases by dry adsorption on an adsorbent. The process comprises subjecting the high temperature reducing gas to a catalytic CO-shift reaction in a reactor having a catalyst and equipped with a heat recovery means for controlling the reaction gas temperature while injecting steam into the high temperature reducing gas, in order to convert the content of CO in the high temperature reducing gas into CO2, effecting the removal of the sulfur compounds and CO2 by dry adsorption on adsorbent under control of the temperature of the gas by means of the heat recovery means of the …
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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 February 8, 1991 and granted February 11, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 8, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 8, 2013.
- 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
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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.