LOW VISCOSITY, HIGH CONCENTRATION DRAG REDUCING AGENT AND METHOD THEREFOR
    131.
    发明申请
    LOW VISCOSITY, HIGH CONCENTRATION DRAG REDUCING AGENT AND METHOD THEREFOR 审中-公开
    低粘度,高浓度减水剂及其方法

    公开(公告)号:WO1997001582A1

    公开(公告)日:1997-01-16

    申请号:PCT/US1996010399

    申请日:1996-06-14

    Abstract: Low viscosity, high concentration drag reducing agents may be prepared by slowly adding a liquid, non-solvent (e.g. isopropyl alcohol) for a drag reducing polymer (e.g. a polyalphaolefin) to a mixture of the polymer and the solvent (e.g. kerosene) in which the polymer is dissolved. When enough non-solvent is added, the polymer precipitates into fine particles. The supernatant mixture of solvent and non-solvent is then removed from the precipitated polymer slurry concentrate. Further solvent contained in the slurry concentrate may be removed by evaporation or further extraction with the liquid, non-solvent. The resulting slurry concentrate dissolves rapidly in flowing hydrocarbon streams to reduce the drag therein, and gives exceptionally good drag reducing results at low concentrations. Additionally, no injection probes or other special equipment is required to introduce the drag reducing slurry into the hydrocarbon stream, nor is grinding of the polymer necessary to form a suitable DRA slurry.

    Abstract translation: 低粘度,高浓度的减阻剂可以通过向聚合物和溶剂(例如煤油)的混合物中缓慢加入用于减阻聚合物(例如聚α-烯烃)的液体非溶剂(例如异丙醇)来制备,其中 聚合物溶解。 当加入足够的非溶剂时,聚合物沉淀成细颗粒。 然后从沉淀的聚合物淤浆浓缩物中除去溶剂和非溶剂的上清液混合物。 可以通过蒸发或用液体非溶剂进一步萃取来除去浆料浓缩物中所含的其它溶剂。 所得到的浆料浓缩物快速溶解在流动的烃流中以减少其中的阻力,并且在低浓度下给出非常好的减阻结果。 另外,不需要注射探针或其他特殊设备将减阻剂引入烃流中,也不需要研磨形成合适的DRA浆料所需的聚合物。

    MULTIFUNCTIONAL ETHER ADDITIVES TO IMPROVE THE LOW-TEMPERATURE PROPERTIES OF DISTILLATE FUELS
    133.
    发明申请
    MULTIFUNCTIONAL ETHER ADDITIVES TO IMPROVE THE LOW-TEMPERATURE PROPERTIES OF DISTILLATE FUELS 审中-公开
    用于提高蒸馏燃料低温特性的多功能添加剂

    公开(公告)号:WO1994025546A1

    公开(公告)日:1994-11-10

    申请号:PCT/US1994004752

    申请日:1994-05-02

    CPC classification number: C10L1/28 C10L1/2633 C10L1/306

    Abstract: Additives which improve the low-temperature properties of distillate fuels are the ether-type core-pendant reaction products of (1) reactive non-hydrocarbon core groups and (2) pendant groups comprising aminoalcohols or aminoalcohols/amines with long-chain hydrocarbyl groups attached. The invention hereindisclosed is also directed to fuel compositions containing such low temperature properties improving additives as well as to fuel compositions containing the subject additives in combination with middle distillate flow improvers.

    Abstract translation: 提高馏出燃料的低温性能的添加剂是(1)反应性非烃核心基团的醚型核心 - 副反应产物和(2)包含连接有长链烃基的氨基醇或氨基醇/胺的侧基 。 这里所公开的本发明还涉及含有这种低温性质改进添加剂的燃料组合物以及含有主要添加剂与中间馏分流动改进剂组合的燃料组合物。

    BLENDS FOR USE IN FUEL COMPOSITIONS
    136.
    发明公开
    BLENDS FOR USE IN FUEL COMPOSITIONS 有权
    化合物,其用燃料组合物

    公开(公告)号:EP2209874A1

    公开(公告)日:2010-07-28

    申请号:EP08844311.4

    申请日:2008-10-30

    Abstract: A blend composition comprising (i) one or more base fuels having an aromatics content of below 80% by weight, said one or more base fuels being present in the amount of 10 to 95% by weight of the blend composition; (ii) a fuel additive mixture comprising one or more fuel additives, wherein said additives include an anti-foam agent, said fuel additive mixture being present preferably in the amount of 0.01 to 80% by weight of the blend composition; (iii) an organic molecule containing a moiety CR1R2R3(OH) wherein R1, R2 and R3 are each independently hydrogen or an organic carbon-containing group; and optionally (iv) an aromatic solvent having an aromatics content of greater than 80% by weight; a process for the preparation of said blend composition; and a fuel composition comprising a second base fuel and said blend composition.

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