Rectification of natural gas
CA 1106751 A · Owner: Linde Aktiengesellschaft · Inventors: Becker, Hans
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improvement is provided in a process for separating a C2+-hydrocarbon fraction from compressed CO2-containing natural gas by rectification, wherein the compressed natural gas is, prior to rectification, subjected to partial condensation and engine-expansion steps to achieve the desired pressure and temperature conditions in the rectification column and wherein the column is fed by resultant condensate of natural gas. The improvement includes the step of conducting the engine expansion of the natural gas to a point well above the temperature at which the CO2 would otherwise precipitate out and recovering, from the engine-expansion step an unliquefied gaseous fraction; then passing that …
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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 August 11, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 11, 1998.
- 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.