Title:
THE TRANSALKYLATION METHOD OF BENZENE AND C9 + AROMATIC HYDROCARBONS
Document Type and Number:
WIPO Patent Application WO/2003/076372
Kind Code:
A1
Abstract:
The invention relates to the transalkylation method of benzene and C9 + aromatic hydrocarbons which was not disclosed in the prior art. This method is also useful for convering the C10+ heavy aromatic hydrocarbons to toluene and C8 aromatics. In this method, in the presence of a zeolite/alumina composite as a catalyst, under hydrgen atmosphere, the raw material of benzene and C9 + aromatic hydrocarbons can be efficiently converted to toluene and C8 aromatic hydrocarbons in a fixed-bed reactor under the following operating conditions temp: 300-600OC; pressure: 1.0-6.OMpa; the ratio of H2/hydrocarbons: 1-15; and weight hourly space velocity (WHSV): 0.5-5.Oh1. The catalyst comprises alumina and zeolite having silica/alumina ratio of 3-500,in which the zeolite is loaded with the metal Mo or/and its oxide and optionally at least one metal selected from iron, cobalt, nickel, chromium, tungsten, bismuth, lanthanum, zirconium, silver or/and its oxide. The catalyst has high activity, good stability and high selectivity of the target products. The method can be used in the industrial production of aromatics.
Inventors:
KONG DEJIN (CN)
XING YU (CN)
XING YU (CN)
Application Number:
PCT/CN2003/000146
Publication Date:
September 18, 2003
Filing Date:
February 25, 2003
Export Citation:
Assignee:
CHINA PETROLEUM & CHEMICAL (CN)
SHANGHAI RES INST PETROCHEMICAL TECHNOLOGY SINOPEC (CN)
KONG DEJIN (CN)
XING YU (CN)
SHANGHAI RES INST PETROCHEMICAL TECHNOLOGY SINOPEC (CN)
KONG DEJIN (CN)
XING YU (CN)
International Classes:
C07C6/12; (IPC1-7): C07C15/06; C07C6/06; C07C15/067
Foreign References:
| JPH09187658A | 1997-07-22 | |||
| US5866742A | 1999-02-02 | |||
| CN1287884A | 2001-03-21 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (Great Eagle Centre 23 Harbour Road Wanchai
Hong kong, CN)
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