发明名称 |
Apparatus for the Production of Xylenes |
摘要 |
In a process for producing para-xylene, a feed stream comprising C6+ aromatic hydrocarbons is separated into a toluene-containing stream, a C8 aromatic hydrocarbon-containing stream and a C9+ aromatic hydrocarbon-containing stream. The toluene-containing stream is contacted with a methylating agent to convert toluene to xylenes and produce a methylated effluent stream. Para-xylene is recovered from the C8 aromatic hydrocarbon-containing stream and the methylated effluent stream in a para-xylene recovery section to produce a para-xylene depleted stream, which is then contacted with a xylene isomerization catalyst under liquid phase conditions effective to isomerize xylenes in the para-xylene depleted stream and produce an isomerized stream. The C9+-containing stream with a transalkylation catalyst under conditions effective to convert C9+-aromatics to C8−-aromatics and produce a transalkylated stream, which is recycled together with the isomerized stream to the para-xylene recovery section. |
申请公布号 |
US2016185686(A1) |
申请公布日期 |
2016.06.30 |
申请号 |
US201615058474 |
申请日期 |
2016.03.02 |
申请人 |
ExxonMobil Chemical Patents Inc. |
发明人 |
Molinier Michel;Abichandani Jeevan S.;Andrews Jeffrey L.;Tinger Robert G.;Stanley Dennis J.;Wagner George J. |
分类号 |
C07C5/27;C10G35/04;C07C7/14;C07C6/06;C07C7/04;C07C7/12;B01J19/24;C07C2/86 |
主分类号 |
C07C5/27 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Baytown TX US |