Process and apparatus for dehydrogenating alkanes
CA 2086099 A1 · Owner: Exxon Research And Engineering Company · Inventors: Serrand, Willibald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An alkane-containing feedstream is passed through one or more tubes, which may contain alkane-dehydrogenation catalyst immersed, in a bed of fluidized particles. The bed is at an elevated temperature which maintains the temperature within the tube(s) at an alkane-dehydrogenation temperature. The particles may be inert chemically active and/or catalytically active. In one embodiment cracking catalyst particles are circulated beween a reaction zone (wherein they contact a cracker feedstock which is converted to cracked hydrocarbon products) and a regenerator (22) (wherein carbonaceous deposits on the catalyst particles are exothermically removed by contact with an oxygen-containing gas (24)). …
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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 25, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2013.
- 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.