Patent Yard Sign in
Expired Canadian patentCanada

Integrated steam methane reforming process for producing carbon monoxide and hydrogen

CA 2173802 C · Owner: Baade, William Frederick · Inventors: Hufton, Jeffrey Raymond; Anand, Madhu; Sircar, Shivaji

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

The present invention is a process for producing an essentially pure carbon monoxide (CO) product and an essentially pure hydrogen product by reforming a hydrocarbon such as methane and steam in the presence of a reforming catalyst to produce a reformate product enriched in CO carbon dioxide and hydrogen. The, reformate is subjected to an integrated series of separation steps and carbon dioxide present in a portion of the waste effluent recovered from such series of spearation steps is shifted to CO in an integrated sorption enhanced reaction (SER) process.

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 April 10, 1996 and granted November 30, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 10, 1996
GrantedNovember 30, 1999
Term endedApril 10, 2016
Patent numberCA 2173802 C
Classification (IPC)C01B32/40 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedApril 10, 1996Patent grantedNov 30, 1999Term endedApril 10, 2016

Sources & verification

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