发明名称 |
High-purity meta-xylene production process |
摘要 |
There is provided a process for producing high-purity meta-xylene by converting a hydrocarbon feedstream comprising at least about 5 wt % ethylbenzene and at least about 20 wt % meta-xylene, over a single molecular sieve catalyst under ethylbenzene conversion conditions sufficient to provide a primary product stream depleted of more than 50% of the ethylbenzene present in the feedstream. The process can further comprise stripping benzene and/or toluene by-products from the primary product stream to provide a secondary product stream comprising at least about 75 wt % mixed ortho-xylene and meta-xylene; and splitting the secondary product stream by removing substantially all of the ortho-xylene present therein to provide a tertiary product stream comprising at least about 95 wt % meta-xylene.
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申请公布号 |
US6207871(B1) |
申请公布日期 |
2001.03.27 |
申请号 |
US19970995270 |
申请日期 |
1997.12.19 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
HELLRING STUART D.;STERN DAVID L. |
分类号 |
C07C5/22;C07B61/00;C07C4/12;C07C5/27;(IPC1-7):C07C15/12;C07C5/52 |
主分类号 |
C07C5/22 |
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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