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    • 7. 发明授权
    • Catalytic process for dewaxing hydrocarbon feedstocks
    • 用于脱蜡烃原料的催化方法
    • US5332490A
    • 1994-07-26
    • US952037
    • 1992-09-28
    • Robert J. Taylor, Jr.Pei-Shing E. DaiRandall H. PettyJoseph A. Durkin
    • Robert J. Taylor, Jr.Pei-Shing E. DaiRandall H. PettyJoseph A. Durkin
    • C10G45/64C10G47/20
    • C10G45/64C10G2400/10
    • A process for hydrodewaxing a hydrocarbon feedstock boiling above about 350.degree. F. by contacting the feedstock and hydrogen at a hydrogen pressure of from about 300 to about 2000 psig at a temperature of 400.degree. to 900.degree. F. and at a space velocity of about 0.1 to about 10.0 LHSV with a catalyst comprising about 0.1 to about 23 wt. % of an oxide of a Group VIII metal, such as nickel, or an oxide of a Group VIB metal, such as molybdenum; supported on a porous alumina support containing about 50 to about 85 wt. % of a crystalline alumino-silicate zeolite of the ZSM-5 type based on the weight of the support. The catalyst is further characterized by having greater than 60% of the pore volume between 45-600 Angstroms in the 70-200 Angstrom range. The process is especially useful for dewaxing lubricating oil basestocks.
    • 通过使原料和氢气在约300至约2000psig的氢气压力下在400-900°F的温度和大约的空间速度下接触原料和氢气,将沸点高于约350°F的烃原料加氢脱蜡的方法。 0.1至约10.0LHSV,催化剂包含约0.1至约23重量% %的Ⅷ族金属的氧化物,例如镍,或ⅥB族金属的氧化物如钼; 负载在含有约50至约85重量%的多孔氧化铝载体上。 %的基于载体重量的ZSM-5型结晶铝硅酸盐沸石。 该催化剂的特征还在于在70-200埃范围内具有大于60%的孔体积在45-600埃之间。 该方法对于脱蜡润滑油基础油料特别有用。