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:
Dec. 28, 1999
Filed:
Jul. 07, 1998
Russell C Schulz, Glen Ellyn, IL (US);
Perry K Ho, Wheeling, IL (US);
UOP LLC, Des Plaines, IL (US);
Abstract
A process for producing alkylaromatics using a multibed alkylation reaction zone is disclosed. The alkylation reaction zone effluent is divided into three portions, the first being recirculated to the inlet of the reaction zone, the second being cooled and recirculated to one or more other beds in the reaction zone, and the third being passed to a product recovery zone where the alkylaromatic is recovered. This process insures that all of the catalyst beds operate in an optimum temperature range. This in turn insures that byproduct formation is minimized and catalyst life is maximized. Ethylbenzene and cumene may be produced by this process.