发明名称 |
Production of Para-Xylene by the Methylation of Benzene and/or Toluene |
摘要 |
In a process for the production of para-xylene, methanol is preheated to a first temperature, an aromatic feedstock comprising toluene and/or benzene is preheated to a second temperature and the preheated methanol and aromatic feedstocks are fed to a reactor at a first methanol to aromatic feedstock molar ratio. The preheated aromatic feedstock is contacted with the preheated methanol under alkylation conditions in the reactor in the presence of a catalyst so that the methanol reacts with the aromatic feedstock to produce an effluent comprising para-xylene. During the reaction, a temperature is measured within the reactor and is compared with a predetermined optimal temperature. The methanol to aromatic feedstock molar ratio is then adjusted in a manner to reduce any difference between the measured and predetermined optimal temperatures in the reactor.
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申请公布号 |
US2011092755(A1) |
申请公布日期 |
2011.04.21 |
申请号 |
US20100894778 |
申请日期 |
2010.09.30 |
申请人 |
LATTNER JAMES R;HAGEMEISTER MARK P;STANAT JON EDMOND RANDOLPH;OU JOHN DI-YI;ZHENG XIAOBO;HAN LU |
发明人 |
LATTNER JAMES R.;HAGEMEISTER MARK P.;STANAT JON EDMOND RANDOLPH;OU JOHN DI-YI;ZHENG XIAOBO;HAN LU |
分类号 |
C07C15/08 |
主分类号 |
C07C15/08 |
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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