Enhanced recovery of carbon dioxide from kiln gas by addition of cooled carbon dioxide
CA 2120858 A1 · Owner: The Boc Group, Inc. · Inventors: Krishnamurthy, Ramachandran; Kapoor, Akhilesh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
High purity carbon dioxide-rich gas is produced from hot carbon dioxide-rich kiln exhaust gas by cooling the exhaust gas by injecting carbon dioxide-rich gas, such as high purity carbon dioxide or previously cooled carbon dioxide-rich kiln exhaust gas into the exhaust gas to cool the gas removing, particulate impurities from the cooled exhaust gas and separating high purity carbon dioxide from the exhaust gas.
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
- Filed April 8, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 8, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 8, 2016.
- 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.