A high activity hydrodesulfurization catalyst, a method of making said catalyst, and a process for manufacturing an ultra-low sulfur middle distillate fuel
CA 2580451 C · Owner: Bhan, Opinder Kishan · Inventors: Bhan, Opinder Kishan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of making a high activity catalyst composition suitable for use in the hydrodesulfurization of a middle distillate feed such as diesel fuel, having a high concentration of sulfur to thereby provide a low sulfur middle distillate product. The method comprises heat treating aluminum hydroxide under controlled temperature conditions thereby converting said aluminum hydroxide to gamma-alumina to give a converted aluminum hydroxide and , controlling the fraction of said converted aluminum hydroxide that is gammaalumina by controlling said controlled temperature conditions to within a calcination temperature range of from 850 ~F (454 ~C) to 950 ~F(510 ~C) so that essentially all of …
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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 September 15, 2005 and granted July 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 15, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
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Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.