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    • 6. 发明申请
    • Production of high quality lubricant bright stock
    • 生产高品质润滑油光亮股
    • US20050051463A1
    • 2005-03-10
    • US10659012
    • 2003-09-09
    • Stephen MillerRussell Krug
    • Stephen MillerRussell Krug
    • C10G65/12
    • C10G65/12C10M101/02C10M2203/1085C10N2230/02C10N2230/10
    • A process for producing a lubricant bright stock from a very heavy feed obtained from a petroleum crude is disclosed. The bright stock produced by the present process has a reduced cloud point and better oxidation stability relative to bright stocks prepared by conventional methods. The process comprises the steps of providing a petroleum residuum-derived stream; separating the residuum-derived stream at a distillation cut point in the range of 1150° F. to 1300° F., into a heavy fraction and at least one light fraction; hydrocracking the at least one light fraction under conditions to reduce the concentration of sulfur and nitrogen to suitable levels for hydroisomerization dewaxing; and dewaxing at least a portion of the hydrocracked stream under hydroisomerization conditions to produce a lubricant bright stock.
    • 公开了从由石油原油获得的非常重的原料生产润滑剂光亮原料的方法。 本方法生产的光亮料相对于通过常规方法制备的光亮油墨具有降低的浊点和更好的氧化稳定性。 该方法包括以下步骤:提供来自石油残渣的流; 将在1150°F至1300°F范围内的蒸馏切割点的残渣衍生物流分离成重馏分和至少一种轻馏分; 在将硫和氮的浓度降低到加氢异构化脱蜡的合适水平的条件下加氢裂化至少一种轻馏分; 并在加氢异构化条件下将至少一部分加氢裂化物流脱蜡以产生润滑剂光亮原料。