High thermal stability liquid hydrocarbons and methods for producing them
    22.
    发明授权
    High thermal stability liquid hydrocarbons and methods for producing them 失效
    高热稳定性液体烃及其制备方法

    公开(公告)号:US4330302A

    公开(公告)日:1982-05-18

    申请号:US608659

    申请日:1975-08-28

    Abstract: Liquid petroleum hydrocarbon blends having improved thermal stability at temperatures of 1000.degree. F. and higher are prepared by removing from the blends dissolved molecular oxygen and maintaining low levels of certain trace impurities in the blends. Trace impurity compounds that are maintained at low levels include: sulfur compounds classed as thiols, sulfides, disulfides and polysulfides; organic oxygen compounds classed as hydroperoxides, peroxides, paraffinic carboxylic acids, and phenols; nitrogen compounds classed as amides and alkyl-pyridines; and reactive olefins. Additional improvements in the blends can be obtained by providing them with a dibenzothiophene or a nitrogen compound classed as a paraffinic amine, carbazole or piperidine. The treated blends of this invention have substantially the same physical properties as similar blends that have not been so treated.

    Abstract translation: 通过从共混物中去除溶解的分子氧并保持混合物中某些痕量杂质的低含量,制备了在1000°F以上温度下具有改善的热稳定性的液体石油烃共混物。 维持在低水平的痕量杂质化合物包括:硫化物,硫化物,二硫化物和多硫化物; 分类为氢过氧化物,过氧化物,链烷烃羧酸和酚的有机氧化合物; 分类为酰胺和烷基 - 吡啶的氮化合物; 和活性烯烃。 通过提供共混物可以获得二苯并噻吩或分类为链烷烃胺,咔唑或哌啶的氮化合物,可以获得额外的改进。 本发明的经处理的共混物具有与尚未如此处理的类似共混物基本相同的物理性质。

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