Method for improving biodiesel fuel
    31.
    发明授权
    Method for improving biodiesel fuel 有权
    改善生物柴油燃料的方法

    公开(公告)号:US07918905B2

    公开(公告)日:2011-04-05

    申请号:US11749853

    申请日:2007-05-17

    Abstract: The addition of strong neutralizing amines to react with free fatty acid in biodiesel fuels that may be left from some synthesis routes can lower the total acid number (TAN) of the biodiesel fuel. Surprisingly, the strong neutralizing amines do not interfere with the biodiesel fuel itself which may be primarily fatty acid methyl esters. These strong neutralizing amines may also improve the oxidative stability of biodiesel fuels.

    Abstract translation: 在一些合成途径中残留的生物柴油燃料中加入强中和胺与游离脂肪酸反应可以降低生物柴油燃料的总酸值(TAN)。 令人惊奇的是,强中和胺不会干扰生物柴油本身,它本来可以主要是脂肪酸甲酯。 这些强中和胺还可以改善生物柴油燃料的氧化稳定性。

    Additives to Enhance Metal and Amine Removal in Refinery Desalting Processes
    32.
    发明申请
    Additives to Enhance Metal and Amine Removal in Refinery Desalting Processes 有权
    添加剂在炼油脱盐工艺中增强金属和胺的去除

    公开(公告)号:US20090152164A1

    公开(公告)日:2009-06-18

    申请号:US12390631

    申请日:2009-02-23

    Abstract: It has been discovered that metals and/or amines can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble hydroxyacids. Suitable water-soluble hydroxyacids include, but are not necessarily limited to glycolic acid, gluconic acid, C2-C4 alpha-hydroxy acids, poly-hydroxy carboxylic acids, thioglycolic acid, chloroacetic acid, polymeric forms of the above hydroxyacids, poly-glycolic esters, glycolate ethers, and ammonium salt and alkali metal salts of these hydroxyacids, and mixtures thereof. The composition may also include at least one mineral acid to reduce the pH of the desalter wash water. A solvent may be optionally included in the composition. The invention permits transfer of metals and/or amines into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil emulsions, and in removing calcium and other metals therefrom.

    Abstract translation: 已经发现,通过使用含有水溶性羟基酸的组合物,可以在乳液破乳过程中从烃相中除去或转移金属和/或胺。 合适的水溶性羟基酸包括但不限于乙醇酸,葡萄糖酸,C 2 -C 4α-羟基酸,多羟基羧酸,巯基乙酸,氯乙酸,上述羟基酸的聚合形式,聚乙醇酸酯 ,乙醇酸醚,以及这些羟基酸的铵盐和碱金属盐,及其混合物。 组合物还可以包括至少一种无机酸以降低脱盐洗涤水的pH。 溶剂可以任选地包括在组合物中。 本发明允许将金属和/或胺转移到水相中,在烃相中几乎没有或没有烃相转移到水相中。 该组合物特别可用于处理原油乳液,以及从其中除去钙和其它金属。

    Hydrogen sulfide abatement in molten sulfur
    34.
    发明授权
    Hydrogen sulfide abatement in molten sulfur 失效
    熔融硫中硫化氢减少

    公开(公告)号:US06887447B2

    公开(公告)日:2005-05-03

    申请号:US10688243

    申请日:2003-10-17

    CPC classification number: C01B17/0232 C01B17/0243

    Abstract: The present invention provides a method for inhibiting the evolution of H2S from sulfhydryl compounds in molten sulfur by using scavenging agents such as anhydrides and polymers thereof, conjugated ketones, carbonates, epoxides, monoesters and diesters of unsaturated dicarboxylic acids and polymers of these esters, and the like and mixtures thereof. In one embodiment, it is preferred that the scavenging agent is in liquid form at contact temperature with the molten sulfur. In another embodiment, the scavenging agent may be atomized into the vapor space over the molten sulfur to contact the sulfur with the agent.

    Abstract translation: 本发明提供了一种通过使用清除剂如酸酐及其聚合物,共轭酮,碳酸酯,环氧化物,不饱和的碳酸酯和二酯来抑制硫醇化合物在熔融硫中释放H 2 S的方法 二羧酸和这些酯的聚合物等,以及它们的混合物。 在一个实施方案中,优选的是,清除剂在与熔融硫的接触温度下为液体形式。 在另一个实施方案中,清除剂可以被雾化到熔融硫上的蒸气空间中以使硫与试剂接触。

    Methods and compositions for improvement of low temperature fluidity of
fuel oils

    公开(公告)号:US5772706A

    公开(公告)日:1998-06-30

    申请号:US928289

    申请日:1997-09-12

    Abstract: Adding to a fuel oil a composition of from about 1 to about 40 parts by weight ethylene/vinyl acetate copolymer having a vinyl acetate content of from about 10% by weight to about 50% by weight and a weight average molecular weight of from about 2,000 to about 10,000, and 1 part by weight esterified copolymer of at least one generally linear .alpha.-olefin of from about 18 to about 50 carbon atoms and maleic anhydride in an .alpha.-olefin to maleic anhydride molar ratio of from about 4:1 to about 1:2, the copolymer having a weight average molecular weight of from about 2,000 to about 20,000, the esterified copolymer having been esterified with a plurality of aliphatic alcohols having from about four to about forty carbon atoms, imparts to the fuel oil surprisingly improved low temperature fluidity, provided that the alcohols include an eight carbon alcohol making up from about 50 to about 85 molar percent of the alcohols.

    Use of olefinic imines to scavenge sulfur species
    37.
    发明授权
    Use of olefinic imines to scavenge sulfur species 失效
    使用烯属亚胺清除硫物质

    公开(公告)号:US5567213A

    公开(公告)日:1996-10-22

    申请号:US636813

    申请日:1996-04-25

    CPC classification number: C10L1/2283 C09K8/532 C10G29/20

    Abstract: A method for scavenging sulfur species from a petroleum-derived medium is disclosed. The method comprises contacting the medium with sulfur species scavenging amount of an imine of the formula ##STR1## wherein x is an integer from 1 to 10, R' is an organic moiety having a number of valences equal to x, R.sub.1 is hydrogen or a mono-valent organic moieties and R is a mono-valent olefin moiety, provided that R and R.sub.1 contain a total of from about four to about forty carbon atoms. In an alternative embodiment, the imine is produced by a condensation reactionic between an amine having at least one primary amino group and a carbonyl of the formula ##STR2## wherein R.sub.1 is hydrogen or a mono-valent organic moieties and R is a mono-valent olefin moiety, provided that R and R.sub.1 contain a total of from about four to about forty carbon atoms. In yet other embodiments, the imine is produced by a condensation reaction between an amine having at least one primary amino group and an aldehyde having at least one alpha-hydrogen in an aldehyde to primary amino group molar ratio of at least about 2:1, are also disclosed.

    Abstract translation: 公开了一种从石油衍生的介质中清除硫物质的方法。 该方法包括使培养基与清除硫的物质接触式为式的亚胺,其中x是1至10的整数,R'是具有等于x的价数的有机部分,R 1是氢或 一价有机部分,R是一价烯烃部分,条件是R和R 1含有总共约4至约40个碳原子。 在替代实施方案中,亚胺通过具有至少一个伯氨基的胺与式有机部分的羰基之间的缩合反应产生,R是一价烯烃部分,条件是R和R 1含有 约4至约40个碳原子。 在其它实施方案中,亚胺通过具有至少一个伯氨基的胺与具有至少一个α-羟基的醛与醛与伯氨基摩尔比至少约2:1的缩合反应产生, 也被披露。

    Additives to enhance metal removal in refinery desalting processes
    39.
    发明授权
    Additives to enhance metal removal in refinery desalting processes 有权
    在炼油厂脱盐过​​程中增强金属去除的添加剂

    公开(公告)号:US08372270B2

    公开(公告)日:2013-02-12

    申请号:US13008667

    申请日:2011-01-18

    Abstract: It has been discovered that metals can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains a demulsifier (for instance, an oxyalkylated alkyl resin and/or a crosslinked polypropylene glycol), a surfactant, a diketone and a solvent (for instance an aromatic solvent). The method may also include introducing a hydroxyl carboxylic acid and/or at least one mineral acid to reduce the pH of the desalter wash water. The method permits transfer of metals into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil emulsions, and in removing iron therefrom.

    Abstract translation: 已经发现,通过使用含有破乳剂(例如,烷氧基化烷基树脂和/或交联聚丙二醇)的组合物,可以在乳液破乳过程中将烃类从烃相中除去或转移到水相, 表面活性剂,二酮和溶剂(例如芳族溶剂)。 该方法还可以包括引入羟基羧酸和/或至少一种无机酸以降低脱盐洗涤水的pH。 该方法允许将金属转移到水相中,很少或没有烃相载入水相。 该组合物特别可用于处理原油乳液和从其中除去铁。

    Additives to enhance phosphorus compound removal in refinery desalting processes
    40.
    发明授权
    Additives to enhance phosphorus compound removal in refinery desalting processes 有权
    炼油脱盐工艺中磷化合物去除添加剂的添加剂

    公开(公告)号:US07799213B2

    公开(公告)日:2010-09-21

    申请号:US11177060

    申请日:2005-07-08

    Abstract: Reactive phosphorus species can be removed or transferred from a hydrocarbon phase to a water phase in an emulsion breaking process by using a composition that contains water-soluble hydroxyacids. Suitable water-soluble hydroxyacids include, but are not necessarily limited to glycolic acid, gluconic acid, C2-C4 alpha-hydroxy acids, poly-hydroxy carboxylic acids, thioglycolic acid, chloroacetic acid, polymeric forms of the above hydroxyacids, poly-glycolic esters, glycolate ethers, and ammonium salt and alkali metal salts of these hydroxyacids, and mixtures thereof. The composition may optionally include a mineral acid to reduce the pH of the desalter wash water. A solvent may be optionally included in the composition. The invention permits transfer of reactive phosphorus species into the aqueous phase with little or no hydrocarbon phase undercarry into the aqueous phase. The composition is particularly useful in treating crude oil emulsions, and in removing calcium and other metals therefrom.

    Abstract translation: 活性磷物质可以通过使用含有水溶性羟基酸的组合物在乳液破乳过程中从烃相去除或转移到水相中。 合适的水溶性羟基酸包括但不限于乙醇酸,葡萄糖酸,C 2 -C 4α-羟基酸,多羟基羧酸,巯基乙酸,氯乙酸,上述羟基酸的聚合形式,聚乙醇酸酯 ,乙醇酸醚,以及这些羟基酸的铵盐和碱金属盐,及其混合物。 组合物可以任选地包括无机酸以降低脱盐洗涤水的pH。 溶剂可以任选地包括在组合物中。 本发明允许将反应性磷物质转移到水相中,在水相中很少或没有烃相载体进入水相。 该组合物特别可用于处理原油乳液,以及从其中除去钙和其它金属。

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