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:
May. 03, 2016
Filed:
Jul. 09, 2014
Uop Llc, Des Plaines, IL (US);
Boreskov Institute of Catalysis, Novosibirsk, RU;
Mark G. Riley, Hinsdale, IL (US);
Alakananda Bhattacharyya, Glen Ellyn, IL (US);
Nikolay Yu. Adonin, Novosibirsk, RU;
Mariya N. Timofeeva, Novosibirsk, RU;
Sergey A. Prikhodko, Novosibirsk, RU;
Bair S. Bal'zhinimaev, Novosibirsk, RU;
UOP LLC, Des Plaines, IL (US);
BORESKOV INSTITUTE OF CATALYSIS, Novosibirsk, RU;
Abstract
A process for making linear alkyl aromatics is described. The process involves preparing the paraffin feed by dehydrogenating normal paraffins, selectively hydrogenating any diolefins, and adsorbing any aromatics to form an olefin feed. The olefin feed is contacted with an aromatic feed in the presence of an ionic liquid catalyst to form a mixture of alkylated aromatics. The ionic liquid catalyst is separated from the mixture of alkylated aromatics by gravity, and any ionic liquid retained in the alkylated aromatics is removed by adsorption or extraction. The mixture of alkylated aromatics is then separated into monoalkylated aromatics and dialkylated aromatics.