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Expired Canadian patentCanada

Method and apparatus for energy reduction in acid gas capture processes

CA 2613251 C · Owner: Svendsen, Hallvard F. · Inventors: Hoff, Karl Anders; Mejdell, Thor; Svendsen, Hallvard F.

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Abstract From the Canadian patent

The invention relates to a new method for removing and recovering of acid gases from a gaseous mixture in an absorption plant by adding an organic acid to a stream of the rich absorbent in the desorber in order to release acid gas by shifting the acid gas equilibrium towards the gas side and the organic , acid is subsequently separated from the absorbent. With this method the , energy consumption of the process is substantially reduced. The invention also relates to an apparatus for performing this method.

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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

  • Filed June 28, 2006 and granted December 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 28, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 28, 2006
GrantedDecember 24, 2013
Term endedJune 28, 2026
Patent numberCA 2613251 C
Classification (IPC)B01D53/14

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJune 28, 2006Patent grantedDec 24, 2013Term endedJune 28, 2026

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.