Lubricating base oil, lubricating oil composition containing lubricating base oil, and method for producing lubricating oil composition

    公开(公告)号:US11034906B2

    公开(公告)日:2021-06-15

    申请号:US16465509

    申请日:2017-11-06

    申请人: KAO CORPORATION

    发明人: Tatsuya Miyazaki

    摘要: Provided is a method of lubricating a sliding part by applying a lubricating base oil containing an ester compound to the sliding part. The ester compound contains a mixture of one or more compounds represented by a general formula (1) wherein R1 and R2 independently represent a hydrogen, a methyl, a benzoyloxy, a naphthoyloxy, or general formula (2) (—O—C(═O)—R5), R3 and R4 independently represent a benzoyloxy group, a naphthoyloxy group, or general formula (2), and R5 represents a linear C5-21 alkyl group, a branched chain C9-21 alkyl group, or a C5-21 cycloalkyl group that may also be substituted with an alkyl chain. The mixture contains a compound in which at least one among R1 to R4 is general formula (2), and the proportion, in the mixture, of a compound in which at least one among R1 to R4 is a benzoyloxy group or a naphthoyloxy group is 5-100 mole %.

    Anti-agglomerate gas hydrate inhibitors for use in petroleum and natural gas systems
    6.
    发明授权
    Anti-agglomerate gas hydrate inhibitors for use in petroleum and natural gas systems 有权
    用于石油和天然气系统的抗附聚气体水合物抑制剂

    公开(公告)号:US09193671B2

    公开(公告)日:2015-11-24

    申请号:US13245580

    申请日:2011-09-26

    摘要: A method of inhibiting gas hydrate formation in petroleum and natural gas production systems through the use of low dosage hydrate inhibitors which include reaction products of non-halide-containing inorganic acids, organic acids, and organic amines. The use of these non-halide-containing reaction products rather than chloride containing acids or alkylating agents avoids corrosion and stress cracking caused by residual inorganic chloride and other inorganic, halide-containing acids. The anti-agglomerate compositions can be administered continuously to effectively inhibit gas hydrate formation. In preferred embodiments, the anti-agglomerate compositions are mixtures of reaction products of non-halide-containing organic acids and organic amines.

    摘要翻译: 一种通过使用低含量水合物抑制剂来抑制石油天然气生产系统中气体水合物形成的方法,其包括非卤化物的无机酸,有机酸和有机胺的反应产物。 使用这些不含卤化物的反应产物而不是含有酸或烷基化剂的氯化物避免了由残留的无机氯化物和其它无机卤化物的酸引起的腐蚀和应力开裂。 可以连续施用抗附聚物组合物以有效地抑制气体水合物形成。 在优选的实施方案中,抗附聚组合物是不含卤化物的有机酸和有机胺的反应产物的混合物。