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:
Sep. 06, 2011
Filed:
Feb. 25, 2009
Jin-suk Lee, Seoul, KR;
Nam-cheol Shin, Chungcheongnam-do, KR;
Jin-Suk Lee, Seoul, KR;
Nam-Cheol Shin, Chungcheongnam-do, KR;
Samsung Total Petrochemicals Co., Ltd., Dokgod-RI, Daesan-Up Seonsan-shi, Chungcheongnam-do, KR;
Abstract
Disclosed is a method for separating aromatic compounds using a simulated moving bed (SMB) operation, characterized by injecting each raw material having a different composition into each different part of an adsorption chamber so as to improve the recovery rate. More specifically, the present invention provides a method for separating aromatic compounds for improving p-xylene separation in a p-xylene separation process, by injecting a high p-xylene mixture from selective toluene disproportionation process (STDP) and low p-xylene mixture from other processes (for example, processes of reformer, isomerization reactor and transalkylation of aromatics having 9 carbon atoms) into each different part of an adsorption chamber.