Procedure for capturing mercaptans in a gas load
CA 2514087 C · Owner: Drozdz, Sophie · Inventors: Drozdz, Sophie; Cadours, Renaud; Lecomte, Fabrice
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The gas feed arriving by pipe 1 is put into contact with a liquid solvent entering from pipe 2 in contact zone ZA. The solvent includes between 0.001% and 100% in weight of an olefin liquid. The contact in contact zone ZA is carried out in the presence of an acid catalyst. The purified gas feed is discharged from zone ZA by pipe 3. The solvent loaded with sulphides is discharged by pipe 4 then regenerated in the RE unit. The regenerated solvent is recycled by pipes 7 and 2 in zone ZA.
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 July 28, 2005 and granted March 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2025.
- 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.
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.