Process for upgrading a gasoline
CA 1231661 A · Owner: Shell Canada Limited · Inventors: Kieffer, Eduard P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A complete gasoline fraction obtained by catalytic cracking which has an aromatics content of a %w and consists of a light a, middle and a heavy fraction, said heavy fraction having an aromatics content of b %w such that 0.35 < ? < 0.45 is upgraded, by separating the mixture of light and middle fraction from the product obtained by catalytic cracking and contacting this mixture or a part of it with a crystalline metal silicate which after one hour's calcination in air at 500°C has the following properties: a) an X-ray powder diffraction pattern in which the strongest lines are the four lines mentioned in Table A , and, b) in the formula which expresses the composition of the silicate in …
Read the whole patent
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
- Granted January 19, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 19, 2005.
- 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.