发明名称 |
A start-up process for improved selectivity in toluene disproportionation. |
摘要 |
A start-up procedure for use in the disproportionation of co-fed hydrogen and toluene feedstock over a nickel mordenite catalyst containing between 1.0 - 1.5 weight per cent nickel and having a silica to alumina molar ratio of between 16:1 and 22:1. At reaction start-up, the hydrogen to toluene molar ratio is maintained at an unconventionally low level of between 0.5 and 3.3. With an initial temperature of 250 DEG C and under pressure of 550 psig or greater, toluene disproportionation is effected resulting in desirably high selectivity to benzene product and simultaneously low selectivity to undesirable non-aromatic compound by-product. <IMAGE> |
申请公布号 |
EP0538229(A2) |
申请公布日期 |
1993.04.21 |
申请号 |
EP19920870158 |
申请日期 |
1992.09.29 |
申请人 |
FINA TECHNOLOGY, INC. |
发明人 |
SHAMSHOUM, EDWAR S.;GHOSH, ASHIM K.;SCHULER, THOMAS R. |
分类号 |
B01J29/18;C07B61/00;C07C6/12;C07C15/04;C07C15/08 |
主分类号 |
B01J29/18 |
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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