The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2003
Filed:
Dec. 05, 1998
Jean-Pierre Dath, Beloeil, BE;
Luc Delorme, Waterloo, BE;
Jacques-François Grootjans, Leefdaal, BE;
Xavier Vanhaeren, Genval, BE;
Walter Vermeiren, Houthalen, BE;
Fina Research S.A., Feluy, BE;
Abstract
A process for the catalytic cracking of at least one olefin in an olefinic stream containing impurities, the cracking process being selective towards light olefins in the effluent, the process comprising contacting a feedstock olefinic stream containing at least one sulphur-, nitrogen- and/or oxygen-derivative impurity with a crystalline silicate catalyst of the MFI-type, the catalyst having a silicon/aluminum atomic ratio of at least about 180, to produce an effluent stream having substantially the same olefinic content by weight as, but a different olefin distribution than, the feedstock stream.