Mixed matrix membrane with super water washed silica containing molecular sieves and methods for making and using the same
    37.
    发明授权
    Mixed matrix membrane with super water washed silica containing molecular sieves and methods for making and using the same 有权
    含有分子筛的超级水洗二氧化硅的混合基质膜及其制备和使用方法

    公开(公告)号:US07268094B2

    公开(公告)日:2007-09-11

    申请号:US10643555

    申请日:2003-08-18

    IPC分类号: B01J35/02

    摘要: The present invention provides a method for preparing silica containing molecular sieves which may be mixed with an organic polymer to create a mixed matrix membrane. Further, this invention includes a method of making such a mixed matrix membrane and the membrane itself. A process for separating component gases from a mixture using the subject mixed matrix membrane is also described. The method for preparing silica containing molecular sieves comprises super water washing silica containing molecular sieves to produce water washed molecular sieves which are substantially free of surface remnants. Super water washing also ideally lowers the concentration of alkali metals in the molecular sieves. The water washed sieves are sufficiently free of surface remnants such that when the water washed sieves are subjected to a Sieve Wash Conductivity Test, a wash filtrate is produced having a conductivity of less than 110 micro mhos/cm, more preferably less than 80 micro mhos/cm, even more preferably less than 50 micro mhos/cm, and most preferably less than 30 micro mhos/cm. It is believed that super washing the sieves to this degree will enhance, compared to conventional preparation techniques, the ability of the molecular sieves to bond with an organic polymer to form a highly selective and permeable mixed matrix membrane.

    摘要翻译: 本发明提供了一种制备含二氧化硅的分子筛的方法,该方法可与有机聚合物混合以产生混合基质膜。 此外,本发明包括制造这种混合基质膜和膜本身的方法。 还描述了使用主题混合基质膜从混合物中分离组分气体的方法。 制备含二氧化硅的分子筛的方法包括含有分子筛的超级水洗二氧化硅,以产生基本上没有表面残留物的水洗分子筛。 超级水洗也有利于降低分子筛中碱金属的浓度。 水洗筛足够地没有表面残留物,使得当洗涤过的筛子进行筛洗电导率测试时,产生电导率小于110微摩尔/厘米,更优选小于80微摩尔的洗涤滤液 / cm,甚至更优选小于50微摩尔/厘米,最优选小于30微摩尔/厘米。 据认为,与常规制备技术相比,超级洗涤这种程度的筛子将增强分子筛与有机聚合物结合以形成高选择性和可渗透的混合基质膜的能力。

    Isomerization/dehazing process for base oils from Fischer-Tropsch wax
    38.
    发明授权
    Isomerization/dehazing process for base oils from Fischer-Tropsch wax 有权
    来自费托蜡的基础油的异构化/脱气工艺

    公开(公告)号:US07198710B2

    公开(公告)日:2007-04-03

    申请号:US10383612

    申请日:2003-03-10

    IPC分类号: C10G67/02 C10G73/02

    摘要: A method for producing lubricant base oils is provided comprising the steps of: (a) separating a feedstock into a light lubricant base oil fraction and a heavy fraction; (b) hydroisomerizing the fractions over a medium pore size molecular sieve catalyst under hydroisomerization conditions to produce an isomerized light lubricant base oil fraction having a pour point less than or equal to a target pour point of the lubricant base oils and an isomerized heavy fraction having a pour point of equal to or greater than the target pour point of the lubricant base oils and a cloud point greater than the target cloud point of the lubricant base oils; and (c) dehazing the isomerized heavy fraction to provide a heavy lubricant base oil having a pour point less than or equal to the target pour point of the lubricant base oils and a cloud point less than or equal to the target cloud point of the lubricant base oils.

    摘要翻译: 提供了一种生产润滑剂基础油的方法,包括以下步骤:(a)将原料分离成轻质润滑剂基础油馏分和重馏分; (b)在加氢异构化条件下在中孔分子筛催化剂上使级分加氢异构化,以产生具有小于或等于润滑油基础油的目标倾点的倾点的异构化光润滑剂基油馏分和具有 润滑油基础油的目标倾点以上的倾点和大于润滑剂基油的目标浊点的浊点; 和(c)脱色异构化的重馏分以提供具有小于或等于润滑剂基础油的目标倾点的倾点的重润滑油基础油和小于或等于润滑剂的目标浊点的浊点 基础油。