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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.:

US 5744674 B1

PDFFull Text
Date of Patent:
Apr. 28, 1998

Filed:

Feb. 06, 1996

Catalyst and process for the conversion of heavy aromatics to light

Applicant:
Inventors:

Shouxi Gui, Beijing, CN;

Yuzhi Hao, Beijing, CN;

Yanqing Li, Beijing, CN;

Zhenhua Jing, Beijing, CN;

Haohui Gu, Beijing, CN;

Zhanqiao Liang, Beijing, CN;

Baoyu Cheng, Beijing, CN;

Assignees:

China Petrochemical Corporation, Beijing, CN;

Research Institute of Petroleum Processing, Beijing, CN;

Attorney:

Burns, Doane, Swecker & Mathis LLP

Primary Examiner:

Walter D Griffin

Assistant Examiner:

Nadine Preisch

Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585489 ; 502 64 ; 502 65 ; 502 66 ; 502 71 ; 502 70 ; 502 77 ; 502 81 ; 502 84 ; 502325 ; 502339 ; 502332 ; 502349 ; 502351 ; 585488 ; 585486 ;
Abstract

A catalyst for the preparation of benzene, toluene and xylene from C.sub.9.sup.+ heavy aromatics consists of zeolite ZSM-5 and .gamma.- or .eta.-Al.sub.2 O.sub.3 as carrier, Re, Sn and Pt or Pd supported on the carrier. Under the conditions of 350.degree.-450.degree. C., 0.5-3.5 MPa, a WHSV of 1-5 h.sup.-1 and a H.sub.2 /HC ratio (v/v) of 500-1200, the catalyst achieves high activity and stability as well as low hydrogen consumption.

Find Patent Forward Citations

Gui, Shouxi. (1998). Catalyst and process for the conversion of heavy aromatics to light (U.S. Patent No. 5744674). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5744674

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