Drag reduction with amine functional polymers
    91.
    发明授权
    Drag reduction with amine functional polymers 失效
    用胺官能聚合物进行减阻

    公开(公告)号:US5271424A

    公开(公告)日:1993-12-21

    申请号:US803865

    申请日:1991-12-09

    CPC classification number: C09K3/00 F17D1/17 Y10T137/0391

    Abstract: A poly(vinylamine) which is preferably a poly(vinylamine) hydrochloride is an effective drag reducing agent in aqueous fluids under turbulent flow conditions. Apparently, because of its relatively low molecular weight, preferably in the range of about 5.times.10.sup.5 to 2.times.10.sup.6, this poly(vinylamine) is quite stable and maintains its drag reducing effectiveness over an extended period of usage, demonstrating superior stability to commercial polymers known as effective drag reducing agents. Effectiveness is demonstrated for both tapwater and seawater and the invention can be practiced with respect to fluids flowing through conduits or drag reduction for vessels passing through a body of water.

    Abstract translation: 优选聚(乙烯基胺)盐酸盐的聚(乙烯胺)是在湍流条件下在含水流体中的有效的减阻剂。 显然,由于其相对较低的分子量,优选在约5×10 5至2×10 6的范围内,该聚(乙烯基胺)是相当稳定的并且在延长的使用期内保持其减阻效果,证明对称为有效的商业聚合物具有优异的稳定性 减阻剂。 对于自来水和海水都有效性证明,并且本发明可以相对于通过管道流动的流体或通过水体的容器的减阻来实施。

    Grafted ethylene polymers usable more especially as additives for
inhibiting the deposition of paraffins in crude oils and compositions
containing the oils and said additives
    92.
    发明授权
    Grafted ethylene polymers usable more especially as additives for inhibiting the deposition of paraffins in crude oils and compositions containing the oils and said additives 失效
    更优选的接枝乙烯聚合物可用作抑制原油中石蜡沉积的添加剂和含有油和所述添加剂的组合物

    公开(公告)号:US4608411A

    公开(公告)日:1986-08-26

    申请号:US790358

    申请日:1985-10-23

    CPC classification number: C08F255/02 C10L1/195

    Abstract: The present invention provides grafted ethylene copolymers usable more especially as additives for inhibiting the depositions in crude oils.Said copolymer being formed of ethylene and at least one monomer with ethylenic unsaturation, chosen from vinyl esters of C.sub.2 to C.sub.18 monocarboxylic acids, the alkyl esters in the C.sub.1 to C.sub.12 range of unsaturated monocarboxylic acids from the C.sub.3 to C.sub.12 range and the .alpha., .beta.-unsaturated dicarboxylic compounds, on which are fixed the grafts of a homo or copolymer of an .alpha., .beta.-unsaturated monocarboxylic acid ester with at least one alkanol of a chain length equal to or greater than C.sub.12 and at least 20% of which is of a chain length equal to or greater than C.sub.22. Such copolymers may be used more especially as additives for inhibiting the deposition of paraffins and for improving the flow properties of the crude oils.

    Abstract translation: 本发明提供接枝乙烯共聚物,尤其可用作抑制原油沉积的添加剂。 所述共聚物由乙烯和至少一种具有烯属不饱和键的单体形成,选自C2至C18一元羧酸的乙烯基酯,C3至C12范围的不饱和单羧酸的C1至C12范围内的烷基酯和α,β - 不饱和二羧酸化合物,其上固定α,β-不饱和一元羧酸酯与链长等于或大于C 12的至少一种链烷醇的均聚物或共聚物的接枝物,并且其至少20%为 链长等于或大于C22。 更优选使用这种共聚物作为用于抑制石蜡沉积和用于改善原油的流动性质的添加剂。

    Method of transporting viscous hydrocarbons
    94.
    发明授权
    Method of transporting viscous hydrocarbons 失效
    输送粘性烃的方法

    公开(公告)号:US4355651A

    公开(公告)日:1982-10-26

    申请号:US292389

    申请日:1981-08-13

    CPC classification number: F17D1/17 Y10S516/908 Y10T137/0391

    Abstract: An improvement in the method of transporting viscous hydrocarbons through pipes is disclosed. Briefly, the improvement comprises adding water containing an effective amount of a phosphate ester of a specific block copolymer. The resulting emulsion has a lower viscosity and is more easily transported.

    Abstract translation: 公开了通过管道输送粘性烃的方法的改进。 简单地说,改进包括加入含有有效量的特定嵌段共聚物的磷酸酯的水。 所得乳液具有较低的粘度并更容易运输。

    Pipeline transportation of heavy crude oil
    95.
    发明授权
    Pipeline transportation of heavy crude oil 失效
    管道运输重质原油

    公开(公告)号:US4343323A

    公开(公告)日:1982-08-10

    申请号:US157940

    申请日:1980-06-09

    CPC classification number: F17D1/17 Y10T137/0391

    Abstract: Heavy crude oils are transported by pipeline from deposit location to a remote upgrading location by emulsifying the crude oil using deaerated sodium hydroxide solution, conveying the oil-in-water emulsion through the pipeline, and recovery of the oil from the oil-in-water emulsion by inverting the emulsion and dewatering the resulting water-in-oil emulsion. The emulsion inversion may be effected using slaked lime, resulting in recovery of a substantial proportion of the sodium hydroxide used in the initial emulsification. The sodium hydroxide solution may be recycled by a separate pipeline for reuse or treated for discharge.

    Abstract translation: 通过使用脱气的氢氧化钠溶液乳化原油,通过管道输送水包油乳液并从水包油中回收油,重质原油通过管道从存放位置运输到远程升级位置 通过颠倒乳液并使得到的油包水乳液脱水来乳化。 可以使用熟石灰进行乳液反转,导致在初始乳化中使用的大部分氢氧化钠的回收。 氢氧化钠溶液可以通过单独的管道再循环以供重新使用或被处理用于排放。

    Method of transporting viscous hydrocarbons
    96.
    发明授权
    Method of transporting viscous hydrocarbons 失效
    输送粘性烃的方法

    公开(公告)号:US4249554A

    公开(公告)日:1981-02-10

    申请号:US6624

    申请日:1979-01-26

    CPC classification number: F17D1/17 Y10T137/0391

    Abstract: An improvement in the method of transporting viscous hydrocarbons through pipes is disclosed. Briefly, the improvement comprises adding water containing an effective amount of a combination of an ethoxylated alkyl phenol and a sodium or ammonium salt of an ethoxylated alcohol sulfate. The resulting emulsion has a lower viscosity and is more easily transported.

    Abstract translation: 公开了通过管道输送粘性烃的方法的改进。 简而言之,改进包括加入含有有效量的乙氧基化烷基酚和乙氧基化醇硫酸钠或铵盐的组合的水。 所得乳液具有较低的粘度并更容易运输。

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