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:
Mar. 27, 2007
Filed:
Mar. 10, 2003
Matti Nurminen, Porvoo, FI;
Antti Pyhälahti, Helsinki, FI;
Pirjo Siira, Järvenpää, FI;
Marja Tiitta, Porvoo, FI;
Matti Nurminen, Porvoo, FI;
Antti Pyhälahti, Helsinki, FI;
Pirjo Siira, Järvenpää, FI;
Marja Tiitta, Porvoo, FI;
Fortum OYJ, Espoo, FI;
Abstract
The invention relates to a process for dimerizing lower, olefinic hydrocarbons. In particular, the present invention concerns a process for dimerizing C–, Cand C-olefins with a medium pore zeolite under process conditions allowing selective dimerization According to the invention, fresh olefinic hydrocarbon feedstock is fed to a reaction system including at least one reaction zone and at least one separation zone. The olefinic hydrocarbon feedstock is contacted with an acid catalyst at conditions in which at least a part of the olefins dimerizes. The effluent from the reaction zone is conducted to the separation zone where dimerized reaction product is separated from said effluent.