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    • 4. 发明申请
    • Methods and Apparatus for Bitumen Extraction
    • 沥青提取方法与装置
    • US20120152809A1
    • 2012-06-21
    • US13306733
    • 2011-11-29
    • Julian KiftMahendra JoshiCherish M. HoffmanWhip C. ThompsonDominic J. Zelnik
    • Julian KiftMahendra JoshiCherish M. HoffmanWhip C. ThompsonDominic J. Zelnik
    • C10G1/04B01D11/02
    • C10G1/04C10G2300/44
    • Methods and system for extracting bitumen can include the use of a mixing drum for spraying solvent over bituminous material to help dissolve bitumen and create a bitumen-laden solvent phase that can be separated from the non-bituminous components of the bituminous material. The mixing drum can be rotating during the spraying step to help promote dissolution of bitumen. The mixing drum can also include an internal screen for separating bitumen-laden solvent from the non-bituminous material. In some embodiments, two or more mixing drums are used in series, with the non-bituminous material from the first mixing drum being sprayed with additional solvent in the second mixing drum and bitumen laden solvent from the second mixing drum being used as the solvent sprayed over bituminous material in the first mixing drum. Hydrocyclones can also be incorporated in the in system and methods for increased extraction efficiency.
    • 用于提取沥青的方法和系统可以包括使用用于在沥青材料上喷涂溶剂的混合鼓以帮助溶解沥青并产生可与沥青材料的非沥青组分分离的含沥青的溶剂相。 搅拌筒可以在喷洒步骤中旋转以帮助促进沥青的溶解。 混合鼓还可以包括用于从非沥青材料中分离含沥青的溶剂的内部筛网。 在一些实施例中,串联使用两个或更多个混合桶,其中来自第一混合筒的非沥青材料在第二混合鼓中被附加溶剂喷射,并且来自第二混合鼓的含沥青的溶剂用作溶剂喷雾 在第一混合鼓中的沥青材料。 水力旋流器也可以并入系统和提高提取效率的方法。