Oxygen and nitrogen injection for increasing ammonia production
CA 2255950 A1 · Owner: Kontopoulos, Athanasios · Inventors: Koenig, Jacques; Kontopoulos, Athanasios
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Ammonia production is increased in an ammonia plant having a primary reformer a secondary reformer and an air compressor where the primary reformer and/or , the air compressor is operating at its maximum capacity without investing to , expand the capacity of either. A portion of the feed can bypass the primary reformer and enter the secondary reformer directly. Oxygen and nitrogen streams are added separately and independently to form an ammonia synthesis feed gas. Methane concentration in the outlet stream from the secondary reformer is controlled by manipulating the oxygen stream. Nitrogen concentration or a H2:N2 ratio in the ammonia converter feed gas is controlled by manipulating …
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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 April 7, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2020.
- 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.