Biocatalytic process for reduction of petroleum viscosity
    1.
    发明授权
    Biocatalytic process for reduction of petroleum viscosity 失效
    用于降低石油粘度的生物催化方法

    公开(公告)号:US5529930A

    公开(公告)日:1996-06-25

    申请号:US69295

    申请日:1993-05-28

    CPC分类号: C12R1/01 C10G32/00

    摘要: A method for reducing the viscosity of viscous petroleum liquids, such as heavy crude oil and bitumen, is disclosed. The method is appropriate for use with viscous petroleum liquids that contain sulfur-bearing heterocycles, the physicochemical properties of the heterocycles contributing significantly to the viscosity of the liquid. The method comprises contacting the viscous petroleum liquid with a biocatalyst that converts sulfur-bearing heterocycles into molecules that lack physicochemical properties condusive to viscosity. The biocatalyst works in a sulfur-specific manner, such that the sulfur-bearing heterocycle is altered at the sulfur heteroatom thereof. Through biocatalysis, carbon-sulfur bonds are cleaved and/or polar substituents such as hydroxyl groups are joined to the sulfur heteroatom, the hydrocarbon framework of the sulfur-bearing heterocycle, or both. Preferred biocatalysts for viscosity reduction include preparations of Rhodococcus rhodochrous ATCC No. 53968 microorganisms and enzymes obtained therefrom.

    摘要翻译: 公开了一种用于降低粘稠石油液体如重质原油和沥青的粘度的方法。 该方法适用于含有含硫杂环的粘性石油液体,杂环的物理化学性质显着影响液体的粘度。 该方法包括使粘性石油液体与生物催化剂接触,所述生物催化剂将含硫杂环转化为不具有粘性的物理化学性质的分子。 生物催化剂以硫特异性方式工作,使得含硫杂环在其硫杂原子处被改变。 通过生物催化裂解碳 - 硫键和/或极性取代基如羟基与硫杂原子,含硫杂环的烃骨架或两者相连。 用于粘度降低的优选生物催化剂包括玫瑰色红球菌ATCC No.53968微生物和由其获得的酶的制剂。

    Method and apparatus for improving combustion, thermal efficiency and
reducing emissions by treating fuel
    2.
    发明授权
    Method and apparatus for improving combustion, thermal efficiency and reducing emissions by treating fuel 失效
    通过处理燃料来改善燃烧,热效率和减少排放的方法和装置

    公开(公告)号:US4629472A

    公开(公告)日:1986-12-16

    申请号:US810076

    申请日:1985-12-17

    IPC分类号: C10L1/32

    CPC分类号: C10L1/328

    摘要: Apparatus and processes are disclosed for treating liquid fuels to include precious metal catalysts dispersed within a liquid which is dispersed within the fuels. The precious metal catalysts are preferably present at a level of from about 0.005 to 0.5 ppm by weight of the treated fuel, and the liquid is preferably present at a level of from about 3 to about 15% by volume of the fuel. The fuel is treated prior to introduction into a chamber for combustion.

    摘要翻译: 公开了用于处理液体燃料以包括分散在分散在燃料内的液体内的贵金属催化剂的装置和方法。 贵金属催化剂优选以处理的燃料的约0.005至0.5重量ppm的量存在,并且液体优选以约3至约15体积%的燃料的含量存在。 在引入燃烧室之前对燃料进行处理。

    Method for reducing volume of a radioactive composition
    3.
    发明授权
    Method for reducing volume of a radioactive composition 失效
    降低放射性物质体积的方法

    公开(公告)号:US5202100A

    公开(公告)日:1993-04-13

    申请号:US788804

    申请日:1991-11-07

    IPC分类号: G21F9/30 C22B7/00 C22B60/02

    摘要: A method is disclosed for reducing the volume of a radioactive composition by separating a radioactive first component from a second component of the radioactive composition. The method includes directing the radioactive composition into a reaction zone. The reaction zone includes a molten bath, wherein oxidation of a component of the radioactive composition in the molten bath will cause separation of the radioactive first component from the second component. An oxidizing agent is directed into the molten bath, which oxidizes a component of the radioactive composition, whereby the radioactive first component is separated from the second component. The net volume of the radioactive composition is thereby reduced.

    摘要翻译: 公开了一种通过从放射性组合物的第二组分分离放射性第一组分来减少放射性组合物的体积的方法。 该方法包括将放射性组合物引入反应区。 反应区包括熔浴,其中在熔浴中的放射性组合物的组分的氧化将导致放射性第一组分与第二组分的分离。 氧化剂被引导到熔融浴中,其熔化放射性组合物的组分,由此放射性第一组分与第二组分分离。 因此放射性组合物的净体积减小。