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    Liquid polyfunctional additives for improved fuel lubricity
    25.
    发明授权
    Liquid polyfunctional additives for improved fuel lubricity 失效
    液体多官能添加剂，用于改善燃油润滑性

    公开(公告)号：US06296677B1

    公开(公告)日：2001-10-02

    申请号：US09017090

    申请日：1998-02-02

    Applicant: Marc Ribeaud ,  Paul Dubs ,  Michael Rasberger ,  Samuel Evans

    Inventor： Marc Ribeaud ,  Paul Dubs ,  Michael Rasberger ,  Samuel Evans

    IPC: C10L118

    CPC classification number: C10L10/08 ,  C10L1/1817 ,  C10L1/19 ,  C10L1/1915 ,  C10L1/1986 ,  C10L1/205 ,  C10L1/221 ,  C10L1/232 ,  C10L1/2418 ,  C10L1/2493 ,  C10L10/04

    Abstract: The lubricity (anti-wear properties) of fuels, for example hydrocarbon fuels, oxygenated fuels or mixtures thereof, particularly diesel or aviation fuels having reduced sulphur and/or aromatic content for compliance with regulator requirements, is improved by addition of at least a product which can be obtained by reacting components a), b) and c), where component a) is a compound of the formula I or a mixture of compounds of the formula I, component b) is a compound of the formula II or a mixture of compounds of the formula II and component c) is a compound of the formula III or a mixture of compounds of the formula III, in which the general symbols are as defined in claim 1, the compound of the formula I being, for example, pentaerythritol, thiodiethylene glycol, 1,4-butanediol, 1,4-propanediol, diethylene glycol, triethylene glycol, diethanolamine or glycerol, the compound of the formula II being, for example, sunflower oil or coconut fat, and the compound of the formula III being, for example, methyl 3-(3′,5′-di-tert-butyl-4′-hydroxyphenyl)propionate. The abovementioned products also improve corrosion inhibition.

    Abstract translation: 燃料，例如碳氢化合物燃料，含氧燃料或其混合物，特别是具有降低的硫和/或芳族含量以满足调节器要求的柴油或航空燃料的润滑性（抗磨损性能）通过添加至少一种产物 其可以通过使组分a），b）和c）反应获得，其中组分a）是式I的化合物或式I化合物的混合物，组分b）是式II的化合物或其混合物 的式II化合物和组分c）是式III化合物或式III化合物的混合物，其中一般符号如权利要求1所定义，式I化合物是例如， 季戊四醇，硫二甘醇，1,4-丁二醇，1,4-丙二醇，二甘醇，三甘醇，二乙醇胺或甘油，式II化合物为例如向日葵油或椰子油，式 三是，f 或3-（3'，5'-二叔丁基-4'-羟基苯基）丙酸甲酯。 上述产品也提高了腐蚀抑制。

    Process for improving olefin etherification catalyst life
    27.
    发明授权
    Process for improving olefin etherification catalyst life 失效
    改进烯烃醚化催化剂寿命的方法

    公开(公告)号：US5300126A

    公开(公告)日：1994-04-05

    申请号：US963955

    申请日：1992-10-19

    Applicant: Stephen H. Brown ,  Quang N. Le ,  Lawrence B. Alemany

    Inventor： Stephen H. Brown ,  Quang N. Le ,  Lawrence B. Alemany

    IPC: C07C51/347 ,  C07C51/567 ,  C10L1/14 ,  C10L1/16 ,  C10L1/18 ,  C10L1/188 ,  C10L1/20 ,  C10L1/22 ,  C10L1/24

    CPC classification number: C10L1/1883 ,  C07C51/347 ,  C07C51/567 ,  C10L1/14 ,  C10L1/18 ,  C10L1/1608 ,  C10L1/1824 ,  C10L1/1852 ,  C10L1/1857 ,  C10L1/1881 ,  C10L1/19 ,  C10L1/1905 ,  C10L1/201 ,  C10L1/204 ,  C10L1/205 ,  C10L1/224 ,  C10L1/2286 ,  C10L1/231 ,  C10L1/2437 ,  C10L1/245

    Abstract: A method is disclosed for the pretreatment of olefinic hydrocarbon feedstock to remove conjugated dienes and/or basic nitrogen compounds that deactivate acidic catalyst particles used in olefin conversion processes by reacting the dienes with one or more dienophiles to form the corresponding Diels-Alder adduct, followed by catalytic conversion of the olefinic hydrocarbon feedstock containing the adduct. The formation of the Diels-Alder adduct essentially eliminates the role of dienes in the feedstock as catalyst deactivating agents. When maleic anhydride (MA) is employed as the dienophile, basic nitrogen reacts with maleic anhydride, or with the tetrahydrophthalic anhydride adduct, to lower the amount of catalyst deactivating basic nitrogen compounds in the feedstock. Where the olefin conversion process comprises etherification of isoolefins with alkanol in a C.sub.4 + or C.sub.5 + olefinic hydrocarbon feedstream to produce a gasoline boiling range product enriched in oxygen and rich in high octane value alkyl tertiary alkyl ethers, it has been discovered that the adduct, particularly those adducts formed with MA, is in the gasoline boiling range and contributes usefully to the oxygen enrichment of the gasoline and to octane value.

    Abstract translation: 公开了一种用于预处理烯烃原料以除去共轭二烯和/或碱性氮化合物的方法，其通过使二烯与一种或多种亲双烯体反应形成相应的狄尔斯 - 阿尔德加合物，使烯烃转化过程中使用的酸性催化剂颗粒失活，随后 通过催化转化含有加合物的烯烃原料。 Diels-Alder加合物的形成基本上消除了二烯在原料中作为催化剂失活剂的作用。 当使用马来酸酐（MA）作为亲二烯体时，碱性氮与马来酸酐或四氢邻苯二甲酸酐加合物反应，以降低原料中催化剂失活碱性氮化合物的量。 当烯烃转化方法包括在C4 +或C5 +烯烃原料流中异构烯烃与烷醇的醚化以产生富含氧并富含高辛烷值烷基叔烷基醚的汽油沸程产物时，已经发现加合物，特别是那些 与MA形成的加合物处于汽油沸点范围内，有助于汽油的富氧和辛烷值。

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