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8 条记录 (耗时 0.01 秒)

    Process for decreasing acidity of a crude oil
    2.
    发明公开
    Process for decreasing acidity of a crude oil 失效
    过程用于降低原油的酸含量

    公开(公告)号：EP0881274A3

    公开(公告)日：1999-02-10

    申请号：EP98303913.2

    申请日：1998-05-18

    申请人： EXXON RESEARCH AND ENGINEERING COMPANY

    发明人： Varadaraj, Ramesh ,  Savage, David William

    IPC分类号： C10G31/08

    CPC分类号： C10G19/02 ,  C10G27/02 ,  C10G31/08

    摘要： An acidic crude oil (more especially one containing naphthenic acids) and an effective amount of an aqueous base solution are combined at conditions of pH and temperature sufficient to form an unstable emulsion of the acidic crude oil in the aqueous base solution. The emulsion is broken to form a phase containing crude oil having a decreased acidity and aqueous phase containing residual base and neutralized acids. When the acidic crude oil also contains calcium then decrease in calcium content can also be achieved.

    Process for decreasing acidity of a crude oil
    3.
    发明公开
    Process for decreasing acidity of a crude oil 失效
    Verfahren zur Verminderung des Sauregehalts vonRohöl

    公开(公告)号：EP0881274A2

    公开(公告)日：1998-12-02

    申请号：EP98303913.2

    申请日：1998-05-18

    申请人： EXXON RESEARCH AND ENGINEERING COMPANY

    发明人： Varadaraj, Ramesh ,  Savage, David William

    IPC分类号： C10G31/08

    CPC分类号： C10G19/02 ,  C10G27/02 ,  C10G31/08

    摘要： An acidic crude oil (more especially one containing naphthenic acids) and an effective amount of an aqueous base solution are combined at conditions of pH and temperature sufficient to form an unstable emulsion of the acidic crude oil in the aqueous base solution. The emulsion is broken to form a phase containing crude oil having a decreased acidity and aqueous phase containing residual base and neutralized acids. When the acidic crude oil also contains calcium then decrease in calcium content can also be achieved.

    摘要翻译： 在pH和温度足以在碱性水溶液中形成酸性原油的不稳定乳液的条件下，将酸性原油（更特别是含有环烷酸的一种）和有效量的碱性水溶液合并。 乳液被破碎以形成含有酸度降低的原油和含有残余碱和中和酸的水相的相。 当酸性原油还含有钙时，也可以降低钙含量。

    Hydrophobic bioremediants
    6.
    发明公开
    Hydrophobic bioremediants 失效
    疏水生物助剂

    公开(公告)号：EP0752471A3

    公开(公告)日：1998-03-11

    申请号：EP96304984.6

    申请日：1996-07-05

    申请人： EXXON RESEARCH AND ENGINEERING COMPANY

    发明人： Robbins, Max Leo ,  Varadaraj, Ramesh

    IPC分类号： C12N1/26

    CPC分类号： C12N1/26 ,  Y10S71/903

    摘要： In one embodiment, the present invention provides a microbial nutrient composition comprises a stable, bi-continuous first and second phase. The first phase comprises an aqueous solution of microbial nutrients and the second phase comprising a hydrocarbon liquid and a mixture of surfactants combined in amounts sufficient to render the mixture of first and second phases a liquid at a first temperature and as a waxy solid at a lower second temperature. In another embodiment of the present invention, there is provided a method for treating hydrocarbon contaminated soils and water by applying to the soil or water a microbial nutrient composition which is in the liquid state when it is applied and which forms a waxy solid at temperatures below the application temperature.

    Hydrophobic bioremediants
    7.
    发明公开
    Hydrophobic bioremediants 失效
    Hydrophobe biologisch Hilfsmittel

    公开(公告)号：EP0752471A2

    公开(公告)日：1997-01-08

    申请号：EP96304984.6

    申请日：1996-07-05

    申请人： EXXON RESEARCH AND ENGINEERING COMPANY

    发明人： Robbins, Max Leo ,  Varadaraj, Ramesh

    IPC分类号： C12N1/26

    CPC分类号： C12N1/26 ,  Y10S71/903

    摘要： In one embodiment, the present invention provides a microbial nutrient composition comprises a stable, bi-continuous first and second phase. The first phase comprises an aqueous solution of microbial nutrients and the second phase comprising a hydrocarbon liquid and a mixture of surfactants combined in amounts sufficient to render the mixture of first and second phases a liquid at a first temperature and as a waxy solid at a lower second temperature. In another embodiment of the present invention, there is provided a method for treating hydrocarbon contaminated soils and water by applying to the soil or water a microbial nutrient composition which is in the liquid state when it is applied and which forms a waxy solid at temperatures below the application temperature.

    摘要翻译： 在一个实施方案中，本发明提供微生物营养组合物，其包含稳定的，双连续的第一和第二相。 第一相包含微生物营养物的水溶液，第二相包含烃液体和表面活性剂的混合物，其量足以使第一和第二相的混合物在第一温度下成为液体，并且在较低温度下为蜡状固体 第二温度。 在本发明的另一个实施方案中，提供了一种通过向土壤或水施用微生物营养组合物来处理碳氢化合物污染的土壤和水的方法，所述微生物营养组合物在施用时处于液态并且在低于下述温度下形成蜡状固体 应用温度。

    Diephenyl dialkyl ethane surfactants with one or two hyrophilic groups
    8.
    发明公开
    Diephenyl dialkyl ethane surfactants with one or two hyrophilic groups 失效
    en en en en en en en en en en en en en en en en en en en en en en

    公开(公告)号：EP0732323A1

    公开(公告)日：1996-09-18

    申请号：EP96301617.5

    申请日：1996-03-08

    申请人： EXXON RESEARCH AND ENGINEERING COMPANY

    发明人： Varadaraj, Ramesh ,  Zushma, Stephen

    IPC分类号： C07C309/31 ,  C07C309/10 ,  C11D1/22

    CPC分类号： C07C309/31 ,  C07C305/10

    摘要： The present invention relates to novel two tail-two head and two tail-one head surfactants. In one embodiment, the present invention comprises a novel composition of matter having the general formula:

    wherein R1 and R2 may be the same or different and are selected from liner or branched hydrocarbon chains with carbon numbers 8 to 22;
    R3 is H, SO - y M + , or -O(CH2CH2O) n X;
    R4 is SO - y M + , or -O(CH2CH2O) n X;
    M is H, Li, Na, K. Rb or Cs;
    n is an integer from 2 to 50;
    y is 3 or 4; and,
    X is H or SO - y M + .
    Preferably, in the above composition when R3 is other than H, R3=R4.

    摘要翻译： 本发明涉及新型的二尾二头和两个尾一头表面活性剂。 在一个实施方案中，本发明包括具有以下通式的物质的新组合物：其中R 1和R 2可以相同或不同，并且选自碳数为8至22的直链或支链烃链; R3是H，SO - ，YM +或-O（CH2CH2O）nX; R 4是SO 3 - ，或-O（CH 2 CH 2 O）n X; M是H，Li，Na，K.Rb或Cs; n为2-50的整数; y为3或4; 且X为H或SO - yM +。 优选地，当R 3不是H时，在上述组成中，R 3 = R 4。