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    • 6. 发明授权
    • Process for separation of dewaxed lube oil into light and heavy products
    • 将脱蜡润滑油分离成轻质和重质产品的方法
    • US06413414B1
    • 2002-07-02
    • US09565676
    • 2000-05-04
    • Victor E. ArnoldRichard T. Cleveland
    • Victor E. ArnoldRichard T. Cleveland
    • C10G7302
    • C10G31/06C10G7/003C10G2400/10
    • Methods and apparatus to separate a light lube stock product and a heavy lube stock product from heavy dewaxed lube oils are described which maintain product specifications while utilizing conventional refinery equipment. The heavy dewaxed lube oil stream is first heated, such as in a spiral heat exchanger in the top of a vacuum stripper, with the heavy lube stock fraction, and/or with hot oil. Next, the heated heavy dewaxed lube oil stream is injected into the vacuum stripper, and fuel gas is injected at the bottom of the stripper as the stripping medium. A light lube stock fraction is removed from the upper portion of the stripper, and a heavy lube stock fraction is removed from the lower portion thereof. Optionally, the gas stripping medium is removed from the top of the stripper by a vacuum pump and used to fuel a hot oil exchanger to heat the oil which in turn is employed to heat the heavy dewaxed lube oil stream.
    • 描述了从重型脱蜡润滑油分离轻润滑油原料和重润滑油原料的方法和设备,其在使用常规炼油设备的同时保持产品规格。 首先将沉重的脱蜡润滑油料流加热,例如在真空汽提器顶部的螺旋式热交换器中,重润滑油原料馏分和/或热油。 接下来,将加热的高浓度脱蜡润滑油料流注入真空汽提器中,并将燃料气体作为汽提介质注入汽提塔底部。 从汽提器的上部除去轻质润滑油原料馏分,从其下部除去重质润滑油原料馏分。 任选地,通过真空泵将气体剥离介质从汽提器的顶部除去,并用于燃料热油交换器以加热油,其又被用于加热重的脱蜡润滑油流。
    • 9. 发明申请
    • REFINING USED MOTOR OIL THROUGH SUCCESSIVE HYDROTREATING PROCESSES
    • 通过成功的加氢过程精制使用的电机油
    • US20150361356A1
    • 2015-12-17
    • US14306893
    • 2014-06-17
    • AIR PRODUCTS AND CHEMICALS, INC.
    • Diwakar GargTimothy D. Lebrecht
    • C10G45/22
    • C10G65/04C10G7/003C10G7/06C10G67/02C10G2300/1007C10G2300/1059C10G2300/1074
    • A method for refining used motor oil using two or more hydrotreating reactors arranged in series. The used motor oil may be vacuum distilled to produce an unrefined gasoil. The unrefined gasoil may then be hydrotreated in a first hydrotreating reactor with hydrogen operated at a temperature ranging from approximately 245° C. to approximately 260° C. to produce a hydrotreated gasoil. The hydrogen may comprise a mixture of fresh hydrogen and recycled hydrogen recovered from the last of the two or more hydrotreating reactors. The hydrotreated gasoil may then be hydrotreated in one or more additional hydrotreating reactors operated at temperatures ranging from approximately 260° C. to approximately 330° C. to produce a refined gasoil. The first hydrotreating reactor may remove a substantial portion of metallic impurities from the unrefined impurities, while the one or more additional hydrotreating reactors remove a substantial portion of heteroatom impurities from the unrefined gasoil.
    • 一种使用两个或更多个串联排列的加氢处理反应器来精炼二次发动机油的方法。 所用的机油可以被真空蒸馏以产生未精制的气油。 然后可以在第一加氢处理反应器中加氢处理未精制的气油,氢气在约245℃至约260℃的温度下操作,以产生加氢处理的气油。 氢气可以包括从两个或更多个加氢处理反应器中的最后一个回收的新鲜氢气和再循环的氢气的混合物。 然后可以在一个或多个额外的加氢处理反应器中加氢处理加氢处理的气油,所述加氢处理反应器在约260℃至约330℃的温度下操作,以产生精制气油。 第一加氢处理反应器可以从粗精制杂质中去除大部分金属杂质,而一个或多个另外的加氢处理反应器从未精制的气油中除去大部分的杂原子杂质。