Oxidation of carbonaceous material
CA 1294225 C · Owner: Air Products And Chemicals, Inc. · Inventors: Sircar, Shivaji; Koch, William Rohrer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The gaseous effluent from oxidation of organic material with oxygen-rich gas. which effluent contains CO2 (and possible CO) and unreacted residual oxygen. is compressed and charged to a PSA system for selective removal of the COx. the thus purified oxygen-rich product from the PSA system being recycled to the oxidation reaction. In the PSA system comprised of a plurality of adsorption columns operated in parallel. each column in turn undergoes the steps of: (1) selective adsorption of CO2 from the feed gas; (2) depressuring to near ambient level; (3) purging with air to remove sorbed CO2; and (4) repressuring with part of the recycled effluent from step (1).
Read the whole patent
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
- Granted January 14, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 14, 2009.
- 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.