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    • 8. 发明申请
    • VISBREAKING YIELD ENHANCEMENT BY ULTRAFILTRATION
    • 通过超滤增强产品质量
    • WO2010027456A1
    • 2010-03-11
    • PCT/US2009/004946
    • 2009-09-02
    • EXXONMOBIL RESEARCH AND ENGINEERING COMPANYLETA, Daniel, P.BROWN, Leo, D.
    • LETA, Daniel, P.BROWN, Leo, D.
    • C10C3/00
    • C10G1/02B01D61/145C10G9/007C10G31/11C10G55/04C10G75/00
    • Ultrafiltration may be effectively used to produce visbreaker feeds of improved quality which enable the visbreaker to be operated at higher severity with higher yields of distillable products. A heavy oil feed stream is separated by ultrafiltration or membrane separation into a permeate fraction and a retentate fraction by contacting the heavy oil feed with the first side of a porous membrane separation element in a membrane separation zone. The permeate fraction, comprised of materials which pass selectively through the porous membrane element, is retrieved and at least a portion of it is subjected to visbreaking with the improved liquid yield, especially of lighter distillate fractions. The retentate fraction can be retrieved from the first side of the porous membrane and can also be subjected to visbreaking.
    • 超滤可以有效地用于生产具有改进质量的减粘裂化剂进料,这使得减粘裂化器能够以更高的产率运行在更高的可蒸馏产物的情况下。 重油进料流通过超滤或膜分离通过使重油进料与膜分离区中的多孔膜分离元件的第一侧接触而分离成渗透物部分和渗余物部分。 由选择性通过多孔膜元件的材料组成的渗透物部分被回收,并且其至少一部分以改善的液体收率,特别是较轻的馏分部分进行减粘裂化。 渗余物部分可以从多孔膜的第一侧回收,也可以进行减粘裂化。