Removal of sulfur compounds from hydrocarbon feedstreams using cobalt containing adsorbents in the substantial absence of hydrogen
CA 2429653 A1 · Owner: Zinkie, David N. · Inventors: Feimer, Joseph L.; Stuntz, Gordon F.; Baker, Myles W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for removing sulfur compounds from hydrocarbon feedstreams particularly those boiling in the naphtha range by contacting the feedstream , with an adsorbent comprised of cobalt and one or more Group VI metals selected from molybdenum and tungsten on a refractory support. This invention also relates to a process wherein a naphtha feedstream is first subjected to selective hydrodesulfurization to remove sulfur but not appreciably saturate olefins. A product stream is produced containing mercaptans that are removed by use of the cobalt-containing adsorbents of the present invention.
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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 December 21, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 21, 2023.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.