发明名称 |
Process for upgrading fischer-tropsch syncrude using thermal cracking and oligomerization |
摘要 |
A process for upgrading a Fischer-Tropsch feedstock which comprises (a) recovering from a Fischer-Tropsch reactor a Fischer-Tropsch wax fraction and a Fischer-Tropsch condensate fraction, wherein the Fischer-Tropsch condensate fraction contains alcohols boiling below about 370° C.; (b) contacting the Fischer-Tropsch condensate fraction with a dehydration catalyst in a dehydration zone under dehydration conditions pre-selected to convert at least some of the alcohols present in said fraction into olefins and recovering a first intermediate effluent from said dehydration zone; (c) pyrolyzing the paraffins in the Fischer-Tropsch wax fraction in a thermal cracking zone under thermal cracking conditions pre-selected to crack the Fischer-Tropsch wax molecules to form olefins and collecting a second intermediate effluent from the thermal cracking zone; (d) passing the first and second intermediate effluents recovered from steps (b) and (c) to an oligomerization zone containing an oligomerization catalyst under oligomerization conditions to form an oligomerization mixture having a higher molecular weight than either of said first and second intermediate effluent; (e) hydrofinishing the oligomerization mixture in a hydrofinishing zone; and (f) recovering from the hydrofinishing zone a C10 plus hydrocarbon product, most preferably a lubricating base oil.
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申请公布号 |
US6703535(B2) |
申请公布日期 |
2004.03.09 |
申请号 |
US20020125879 |
申请日期 |
2002.04.18 |
申请人 |
CHEVRON U.S.A. INC. |
发明人 |
JOHNSON DAVID R.;SIMMONS CHRISTOPHER A.;MOHR DONALD H.;MILLER STEPHEN J.;LEE STEPHEN K.;SCHINSKI WILLIAM L.;DRIVER MICHAEL S.;CANNELLA WILLIAM J. |
分类号 |
C07C5/03;C07B61/00;C07C9/14;C10G2/00;C10G9/00;C10G45/64;C10G50/00;C10G55/04;C10G57/02;C10G69/06;C10G69/12;(IPC1-7):C07C2/04 |
主分类号 |
C07C5/03 |
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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