Cryogenic recovery of lpg from natural gas
CA 1195232 A · Owner: Phillips Petroleum Company · Inventors: Gray, Michael L.; Mcclintock, William A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, In accordance with the present invention a natural gas stream predominating in methane and containing significant amounts of C2 C3, C4, and C5 and higher molecular weight hydrocarbons is cooled in a plurality of cooling stages to a temperature sufficient to produce at least one liquid phase portion predominating in C2 C3, C4 and C5 and higher, molecular weight hydrocarbons the at least one liquid phase portion, predominating in C2 C3, C4 and C5 and higher molecular weight hydrocarbons is separated from the main gas stream during the course of the cooling, the thus separated liquid phase portion or portions predominating in C2, C3, C4 and C5 and higher molecular …
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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
- Granted October 15, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 15, 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.