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    • 83. 发明申请
    • PRODUCTION OF OILFIELD HYDROCARBONS
    • 生产油田油气
    • WO2016019403A3
    • 2016-10-06
    • PCT/ZA2015050002
    • 2015-07-22
    • SASOL TECH PTY LTD
    • DE WET EWALD WATERMEYER
    • C10G57/02C10G47/00C10G65/00C10G65/12C10G65/14
    • C10G57/00C10G47/00C10G57/02C10G65/00C10G65/12C10G65/14C10G2300/1022
    • A process (20) to produce olefinic products suitable for use as or conversion to oilfield hydrocarbons includes separating (42) an olefins-containing Fischer-Tropsch condensate (64) into a light fraction (68), an intermediate fraction (82) and a heavy fraction (94), oligomerising (44) at least a portion of the light fraction (68) to produce a first olefinic product (72) which includes branched internal olefins, and carrying out either one or both of the steps of (i) dehydrogenating (50) at least a portion of the intermediate fraction (82) to produce an intermediate product (84) which includes internal olefins and alpha-olefins, and synthesising (52) higher olefins from the intermediate product which includes internal olefins and alpha-olefins to produce a second olefinic product (86), and (ii) dimerising (52) at least a portion of the intermediate fraction to produce a second olefinic product (86). At least a portion of the heavy fraction (94) is dehydrogenated (58) to produce a third olefinic product (96) which includes internal olefins. Also provided is a process (30) to produce paraffinic products suitable for use as or conversion to oilfield hydrocarbons which includes separating (110) a Fischer-Tropsch wax (124) into at least a lighter fraction (126, 128) and a heavier fraction (130), hydrocracking (120) the heavier fraction (130) to provide a cracked intermediate (144), and separating (122) the cracked intermediate (144) into at least a naphtha fraction (148), a heavier than naphtha paraffinic distillate fraction (150) suitable for use as or conversion to oilfield hydrocarbons, and a bottoms fraction (152) which is heavier than the paraffinic distillate fraction (150).
    • 生产适用作油田烃或转化为油田烃的烯烃产物的方法(20)包括将含烯烃的费 - 托合并物(64)分离(42)成轻馏分(68),中馏分(82)和 (94),低聚(44)至少一部分轻馏分(68)以产生包含支链内烯烃的第一烯烃产物(72),并且进行(i)的步骤 (50)将所述中间馏分(82)的至少一部分脱氢以产生包含内烯烃和α-烯烃的中间产物(84),并由所述中间产物合成(52)更高级烯烃,所述中间产物包含内烯烃和α-烯烃, 制备第二烯烃产物(86),和(ii)将至少一部分中间馏分二聚(52)以产生第二烯烃产物(86)。 至少一部分重馏分(94)被脱氢(58)以产生包含内烯烃的第三烯烃产物(96)。 还提供了生产适用作油田烃或转化为油田烃的链烷烃产物的方法(30),其包括将(110)费 - 托蜡(124)分离成至少较轻馏分(126,128)和较重馏分 (130),加氢裂化(120)较重馏分(130)以提供裂化中间产物(144),和将裂化中间产物(144)分离(122)成至少一种石脑油馏分(148) 适合用作油田烃或转化为油田烃的馏分(150),以及比石蜡馏分馏分(150)重的塔底馏分(152)。