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:
Jul. 19, 2005
Filed:
Aug. 05, 2004
Gary G. Podrebarac, Houston, TX (US);
Mario J. Maraschino, Houston, TX (US);
Gary G. Podrebarac, Houston, TX (US);
Mario J. Maraschino, Houston, TX (US);
Catalytic Distillation Technologies, Pasadena, TX (US);
Abstract
A process is disclosed for preparing a Cstream for feeding to an alkylation process which reacts isobutane with butene to produce isooctane. The Cstream is treated in a first distillation column reactor to remove dienes and mercaptans and separate out any C's which might be present. The treated C's are then fed to a second distillation column reactor that concurrently isomerizes 1-butene to 2-butene and splits the normal C's from the iso C's. The iso C's are then fed to a third distillation column reactor where a portion of the isobutene is saturated to isobutane. The C's from the isomerization/splitter are combined with the C's from the hydrogenation unit and fed to a cold acid alkylation unit. The third distillation column may also oligomerize a portion of the isobutene to diisobutene in the upper end which is saturated in the bottom of the column to isooctane.