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. 31, 1984
Filed:
Sep. 02, 1983
Joel B Spinner, Chicago, IL (US);
UOP Inc., Des Plaines, IL (US);
Abstract
A process is disclosed for the production of alkylaromatic hydrocarbons by the alkylation of an aromatic hydrocarbon, such as benzene, with a C.sub.8 -plus acyclic olefin which preferably is a normal olefin. The hydrocarbonaceous effluent of the alkylation reaction zone is separated by fractional distillation to yield both a product stream containing monoalkylated aromatics and a small bottoms stream containing dialkylated aromatics and other high boiling compounds but which is substantially devoid of the product monoalkylated aromatics. The product stream is a portion of a sidecut stream withdrawn from the first of two vacuum columns, with a second portion of the sidecut being passed into the second column. The bottoms stream of the first column is also passed into the second column and the overhead vapor of the second column enters an upper portion of the first column.