Low-temperature hydrogen production from oxygenated hydrocarbons
CA 2467443 C · Owner: Dumesic, James A. · Inventors: Dumesic, James A.; Cortright, Randy D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing hydrogen from oxygenated hydro-carbon reactants such as , methanol, glycerol, sugars (e.g. glucose and xylose) or sugar alcohols (e.g. , sorbitol). The method takes place in the condensed liquid phase. A reactor (18) is disposed within a furnace (20). Liquid reactants are introduced into the reactor (18) via pump (16). Nitrogen supply (10) and hydrogen supply (12) are provided to maintain the overall pressure of the system and the partial pressure of hydrogen within the system chambers in and downstream of the reactor (18). Mass flow controllers (14) are provided to regulate the introduction of nitrogen and hydrogen into the system. A heat exchanger (22) is …
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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 November 27, 2002 and granted January 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 27, 2024.
- 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.