发明名称 |
MULTI-STAGE REFORMING PROCESS USING RHENIUM-CONTAINING CATALYST IN THE FINAL STAGE |
摘要 |
This is a process for upgrading a petroleum naphtha fraction. The naphtha is subjected to reforming and the reformate is cascaded to a benzene and toluene synthesis zone over a benzene and toluene synthesis catalyst comprising a molecular sieve of low acid activity. The preferred molecular sieve is steamed ZSM-5. The benzene and toluene synthesis zone is operated under conditions compatible with the conditions of the reformer such as temperatures of above about 800 DEG F (427 DEG C). In one aspect of the invention, the benzene and toluene synthesis catalyst includes a metal hydrogenation component from group VII(B), specifically rhenium. In one mode of operation, the benzene and toluene synthesis catalyst replaces at least a portion of the catalyst in the reformer. The process produces a product containing an increased proportion of benzene, toluene, and/or xylenes, and a reduced portion of alkylated aromatics, as compared to reformate. |
申请公布号 |
WO0071642(A1) |
申请公布日期 |
2000.11.30 |
申请号 |
WO2000US13686 |
申请日期 |
2000.05.18 |
申请人 |
MOBIL OIL CORPORATION |
发明人 |
ACHARYA, MADHAV;BECK, JEFFREY, S.;CRANE, ROBERT, A., JR.;CHESTER, ARTHUR, W.;KAPOOR, VINAYA, A.;KOVACS, RICHARD, C.;STERN, DAVID, L. |
分类号 |
B01J29/48;B01J29/90;B01J37/10;B01J38/44;C10G35/04;C10G47/18;C10G59/02;C10G69/04 |
主分类号 |
B01J29/48 |
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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