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    • 10. 发明申请
    • PROCESS FOR PREPARING A BASE OIL HAVING A REDUCED CLOUD POINT
    • 制备具有降低的浊点的基础油的方法
    • WO2017109179A1
    • 2017-06-29
    • PCT/EP2016/082570
    • 2016-12-23
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.SHELL OIL COMPANY
    • CREYGHTON, Edward, JuliusKIEFFER, Eduard, PhilipRENKEMA, DuurtDE JONGE, Diederik
    • C10G65/04C10G65/12C10M171/02C10M109/02
    • C10G65/12C10G65/043C10G2300/1022C10G2400/10C10M107/02C10M171/02C10M2205/173C10N2220/022C10N2220/023C10N2230/02C10N2270/00
    • The present invention relates to a process for preparing a residual base oil from a hydrocarbon feed which is derived from a Fischer-Tropsch process, the process comprises the steps of: (a) providing a hydrocarbon feed which is derived from a Fischer-Tropsch process; (b) subjecting the hydrocarbon feed of step (a) to a hydrocracking/hydroisomerisation step to obtain an at least partially isomerised product; (c) separating at least part of the at least partially isomerised product as obtained in step (b) into one or more lower boiling fractions and a hydrowax residue fraction; (d) catalytic dewaxing of the hydrowax residue fraction of step (c) to obtain a highly isomerised product; (e) separating the highly isomerised product of step (d) into one or more light fractions and a isomerised residual fraction; (f) mixing of the isomerised residual fraction of step (e) with a diluent to obtain a diluted isomerised residual fraction; (g) cooling the diluted isomerised residual fraction of step (f) to a temperature between 0°C and -60°C; (i) subjecting the mixture of step (g) to a centrifuging step at a temperature between 0°C and -60°C to isolate the wax from the diluted isomerised residual fraction; (j) separating the diluent from the diluted isomerised residual fraction to obtain a residual base oil.
    • 本发明涉及由源自费 - 托法的烃进料制备残余基础油的方法,所述方法包括以下步骤:(a)提供烃进料,其中 源自费托工艺; (b)将步骤(a)的烃进料进行加氢裂化/加氢异构化步骤以获得至少部分异构化的产物; (c)将步骤(b)中获得的至少部分异构化的至少部分产物分离成一种或多种低沸点馏分和蜡蜡油残渣馏分; (d)步骤(c)的蜡蜡油残渣馏分的催化脱蜡以获得高度异构化的产物; (e)将步骤(d)的高度异构化产物分离成一个或多个轻馏分和异构化残余馏分; (f)将步骤(e)的异构化残余部分与稀释剂混合以获得稀释的异构化残余部分; (g)将步骤(f)的稀释的异构化残余部分冷却至0℃和-60℃之间的温度; (i)将步骤(g)的混合物在0℃和-60℃之间的温度下进行离心步骤以从稀异构化的残留馏分中分离蜡; (j)从稀释的异构化残余馏分中分离稀释剂以获得残余基础油。