Utilization of cos hydrolysis in high pressure gasification
CA 2372652 A1 · Owner: Texaco Inc. · Inventors: Johnson, Kay A.; Wallace, Paul S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The high pressure syngas product of a gasifier is routed first to a high pressure, absorber unit that removes most of the H2S and some of the CO2 from the syngas. The, syngas is then released through an expander to reduce the pressure of the syngas and, simultaneously generate electricity. Steam is then injected into the syngas as a reactant in, the subsequent COS hydrolysis step converting the COS to H2S. After , hydrolysis the, syngas is routed to a reabsorber where the remainder of the H2S and CO2 are removed. Sweet syngas can then be sent to a combustion turbine for use as a fuel source.
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 February 20, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 20, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 20, 2024.
- 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.