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    • 9. 发明授权
    • Process for upgrading fischer-tropsch syncrude using thermal cracking and oligomerization
    • 使用热裂解和低聚提升费 - 托合成原料的方法
    • US06703535B2
    • 2004-03-09
    • US10125879
    • 2002-04-18
    • David R. JohnsonChristopher A. SimmonsDonald H. MohrStephen J. MillerStephen K. LeeWilliam L. SchinskiMichael S. DriverWilliam J. Cannella
    • David R. JohnsonChristopher A. SimmonsDonald H. MohrStephen J. MillerStephen K. LeeWilliam L. SchinskiMichael S. DriverWilliam J. Cannella
    • C07C204
    • C10G2/32Y10S208/95
    • 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.
    • 一种用于升级费 - 托原料的方法,其包括(a)从费 - 托反应器中回收费 - 托蜡馏分和费 - 托冷凝馏分,其中所述费 - 托冷凝馏分含有沸点低于约370℃的醇 。 (b)在脱水条件下,将脱水催化剂与脱水催化剂接触,预先将所述馏分中存在的至少一些醇转化成烯烃并从所述脱水区回收第一中间体流出物; (c)在热裂解条件下,在热裂解条件下热分解费 - 托蜡馏分中的链烷烃,预热裂解条件以裂解费 - 托蜡分子以形成烯烃并从热裂解区收集第二中间体流出物; (d)在低聚条件下将从步骤(b)和(c)回收的第一和第二中间流出物通入含有低聚催化剂的低聚区以形成具有比所述第一和第二中间流出物 ; (e)在加氢精制区中加氢精制低聚混合物; 和(f)从加氢精制区回收C10加烃产物,最优选润滑基础油。