Novel hydroconversion process employing catalyst with specified pore size distribution
CA 2093412 C · Owner: Texaco Development Corporation · Inventors: Pratt, Roy Earl; Sherwood, David Edward, Jr.; Nelson, Gerald Verdell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Heavy hydrocarbons are hydrotreated to increase content of components boiling below 1000°F by contact with Group VIII non-noble metal oxide and Group VI-B metal oxide on alumina having a Total Surface Area of 150-240 m2/g a Total, Pore Volume, (TPV) of 0.7-0.98 and a Pore Diameter, Distribution whereby <= 20 0 of the TPV is present as primary micropores of diameter <= 100.ANG. at least about 34% of TPV is present as secondary micropores of diameter of about 100.ANG.-200.ANG. and about 26%-46% of the TPV is present as mesopores of diameter >= 200.ANG..
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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 5, 1993 and granted December 31, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 5, 2015.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.