Cryogenic gas plant
CA 1184210 A · Owner: Shell Internationale Research Maatschappij B.V. · Inventors: Harryman, John M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for separating substantially all of the C3 and heavier components and a major portion of the C2 component from a natural gas stream using a cryogenic process. The process uses a rectifying column 12 in combination with a demethanizing column 22 to separate the C2 and heavier components with a reflux for the rectifying column, which reflux 13 is supplied by compressing a small portion of the overhead stream 11 and condensing it via heat exchange with the overhead stream.
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 March 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2002.
- 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.