发明名称 |
PARA-XYLENE PRODUCTION PROCESS |
摘要 |
A process is described for increasing the efficiency of para-xylene producti on using a two stage isomerization sequence. In the first stage of the process, a C9+ aromatics feedstock is subjected to ethylbenzene conversion and xylene isomerization. Non-C8 aromatics are removed from the effluent, which is then processed in a second stage of the process to remove para-xylene and isomeri ze the para-xylene depleted effluent. The effluent from the second stage isomerization unit is then recycled into the inlet of the second stage of th e process and a slip stream from the para-xylene separator is recycled to the feedstock and to the effluent of the ethylbenzene conversion unit. In this way, the production of para-xylene is maximized. In a preferred embodiment, toluene is co-fed into the feedstock to minimize the loss of xylenes during the ethylbenzene conversion reaction.
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申请公布号 |
CA2341603(A1) |
申请公布日期 |
2000.03.02 |
申请号 |
CA19992341603 |
申请日期 |
1999.08.12 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
BROWN, STEPHEN HAROLD;BECK, JEFFREY SCOTT;CIMINI, RONALD JOSEPH;KWOK, SELMA;JOHNSON, IVY DAWN;LIGURAS, DIMITRIS KONSTANTINE;ABICHANDANI, JEEVAN SAHIB;STERN, DAVID LAWRENCE |
分类号 |
C07C4/18;C07C5/27;C07C15/08;(IPC1-7):C07C1/00;C07C5/22 |
主分类号 |
C07C4/18 |
代理机构 |
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