发明名称 |
Transalkylation of polyalkylaromatic hydrocarbons |
摘要 |
<p>A process for transalkylating polyalkylbenzenes such as diethylbenzenes produced during the alkylation of an aromatic hydrocarbon with an olefin using a catalyst with improved transalkylation activity is disclosed. The process comprises supplying a feedstock containing benzene and recycled polyalkylbenzenes into a reaction zone with an alkylating agent in a molar ratio of benzene to alkylating agent of from about 2:1 to about 20:1 and into contact with an aluminosilicate alkylation catalyst having an average crystal size of less than about 0.50 mu m and wherein about 90% of the crystals have a particle size of less than 0.70 mu m. The catalyst is characterized by an Si/Al atomic ratio in the range from between 50 and 150 and a maximum pore size in the range from about 1000 to 1800 ANGSTROM . The catalyst has a sodium content of less than about 50 ppm and the reaction is carried out under conversion conditions including a temperature of from about 250 DEG C. to about 500 DEG C. and a pressure of from about 200 psi to about 500 psi.</p> |
申请公布号 |
EP0733608(A1) |
申请公布日期 |
1996.09.25 |
申请号 |
EP19960104488 |
申请日期 |
1996.03.21 |
申请人 |
FINA TECHNOLOGY, INC. |
发明人 |
KUCHENMEISTER, MARK;BUTLER, JAMES |
分类号 |
B01J29/06;C07B61/00;C07C2/66;C07C6/12;C07C7/00;C07C15/073;(IPC1-7):C07C6/12 |
主分类号 |
B01J29/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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