发明名称 |
Desulfurization process for removal of refractory organosulfur heterocycles from petroleum streams |
摘要 |
Hydrocarbon feeds are upgraded by contact of the stream under hydrodesulfurization (HDS) conditions with a catalyst system comprising a sulfided, transition metal promoted tungsten/molybdenum HDS catalyst, e.g., Ni/Co-Mo/Al2O3 and a solid acid catalyst which is effective for the isomerization/disproportionation/transalkylation of alkyl substituted, condensed ring heterocyclic sulfur compounds present in the feedstream, e.g. zeolite or a heteropolyacid compound. Isomerization, disproportionation and transalkylation reactions convert refractory sulfur compounds such as 4- or 4,6-alkyl dibenzothiophenes into corresponding isomers or disproportionated isomers which can be more readily desulfurized by conventional HDS catalysts to H2S and other products.
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申请公布号 |
US5897768(A) |
申请公布日期 |
1999.04.27 |
申请号 |
US19970808100 |
申请日期 |
1997.02.28 |
申请人 |
EXXON RESEARCH AND ENGINEERING CO. |
发明人 |
MCVICKER, GARY B.;HO, TEH C.;SOLED, STUART;DAAGE, MICHEL;KRYCAK, ROMAN;MISEO, SABATO;BUCHHOLZ, VIKTOR;LEWIS, WILLIAM E. |
分类号 |
B01J23/88;B01J27/188;C10G35/06;C10G35/095;C10G45/04;C10G45/08;C10G45/60;C10G45/64;(IPC1-7):C10G45/04 |
主分类号 |
B01J23/88 |
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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