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    • 20. 发明申请
    • PROCESS TO PREPARE MIDDLE DISTILLATES AND BASE OILS
    • 制备中间馏分和基础油的方法
    • WO2014001552A1
    • 2014-01-03
    • PCT/EP2013/063738
    • 2013-06-28
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.SHELL OIL COMPANY
    • KIEFFER, Eduard PhilipRIGUTTO, Marcello StefanoSIETSMA, Jelle Rudolf Anne
    • C10G65/12C10G65/04C10G73/02C10G73/44C10G45/62C10G45/64C10L1/08
    • C10G69/00C10G2/32C10G45/62C10G45/64C10G65/00C10G65/043C10G65/12C10G73/44C10G2300/1022
    • The present invention provides a process to prepare a first middle distillates fraction, a second middle distillates fraction, a distillate base oil and a residual base oil, which process at least comprises the following steps: (a) providing a Fischer-Tropsch product stream; (b) separating the Fischer-Tropsch product stream of step (a), thereby obtaining at least a low boiling fraction, boiling below a temperature in the range of from 300 to 450°C, and a high boiling fraction, boiling above a temperature in the range of from 300 to 450°C; (c) subjecting the high boiling fraction of step (b) to a hydrocracking/hydroisomerization step to obtain an at least partially isomerised product stream; (d) separating the product stream of step (c), thereby obtaining a first middle distillates fraction, a heavy distillates fraction and a residual fraction, wherein the residual fraction has a T5 wt. % boiling point of between 400 and 650°C; (e) dewaxing the low boiling fraction of step (b) to obtain a second middle distillates fraction; f) dewaxing the heavy distillates fraction of step (d) to obtain a distillate base oil; and g) dewaxing the residual fraction of step (d) to obtain a residual base oil.
    • 本发明提供一种制备第一中间馏分馏分,第二中间馏分,馏出物基础油和残余基础油的方法,该方法至少包括以下步骤:(a)提供费 - 托产物流; (b)分离步骤(a)的费 - 托产物流,从而得到至少沸点低于300-450℃的沸点,沸点高于沸点 在300〜450℃的范围内; (c)使步骤(b)的高沸点馏分进行加氢裂化/加氢异构化步骤以获得至少部分异构化的产物流; (d)分离步骤(c)的产物流,从而获得第一中间馏分馏分,重馏分馏分和残余馏分,其中残余馏分具有T5wt。 沸点在400-650℃之间; (e)将步骤(b)的低沸点馏分脱蜡得到第二中间馏分; f)将步骤(d)的重馏分馏分脱蜡得到馏出物基油; 和g)将步骤(d)的残余馏分脱蜡得到残留的基础油。