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    • 22. 发明授权
    • Separation of water from crude oil and oil demulsifiers used for this
purpose
    • 将水与原油和油破乳剂分离用于此目的
    • US5759409A
    • 1998-06-02
    • US737925
    • 1996-12-02
    • Wolfgang KnaufKnut OppenlanderWilhelmus Slotman
    • Wolfgang KnaufKnut OppenlanderWilhelmus Slotman
    • B01D17/04B01D17/05C10G33/04
    • B01D17/047C10G33/04
    • Water is separated from crude oil by a process in which the oil demulsifier used is a mixture of A) compounds which have demulsifying activity and are of the structure type of the (a) polyethyleneimine alkoxylate, (b) mono- or oligoamine alkoxylate, (c) alkoxylated alkylphenol/formaldehyde resins, (d) alkoxylated amine-modified alkylphenol/formaldehyde resins, (e) co- or terpolymers of alkoxylated acrylates or methacrylates with vinyl compounds, (f) condensates of mono- or oligoamine alkoxylates, dicarboxylic acids and alkylene oxide block copolymers, where these condensates may furthermore be completely or partially quaternized at the nitrogen atoms, or (g) compounds (a) to (f) reacted with crosslinking agents and B) as a demulsifying assistant, a polyalkylene glycol ether which has no demulsifying activity and is of the general formula I or II R.sup.1 �(OA.sup.1).sub.a --OH!.sub.n (I) H--(OA.sup.1).sub.b --(OA.sup.2).sub.c --(OA.sup.3).sub.d --OH(II) where R.sup.1 is a monovalent to decavalent C.sub.1 -C.sub.20 alkyl group, phenyl group or alkylphenyl group where the alkyl radical is of 1 to 20 carbon atoms, A.sup.1 to A.sup.3 are each a 1,2-alkylene group of 2 to 4 carbon atoms or a phenylethylene group, n is from 1 to 10, a is from 1 to 50 and b, c and d are each from 0 to 50, the sum b+c+d being greater than 3.
    • PCT No.PCT / EP95 / 01901 Sec。 371日期1996年12月2日第 102(e)日期1996年12月2日PCT提交1995年5月19日PCT公布。 WO95 / 33018 PCT出版物 日期1995年12月7日水与原油分离,其中使用的破乳剂是具有破乳活性且结构类型为(a)聚乙烯亚胺烷氧基化物的A)化合物的混合物,(b) (c)烷氧基化烷基酚/甲醛树脂,(d)烷氧基化胺改性的烷基酚/甲醛树脂,(e)烷氧基化丙烯酸酯或甲基丙烯酸酯与乙烯基化合物的共聚物或三元共聚物,(f)单胺或寡胺的缩合物 烷氧基化物,二羧酸和烯化氧嵌段共聚物,其中这些缩合物还可以在氮原子处完全或部分季铵化,或(g)与交联剂反应的化合物(a)至(f),和B)作为破乳助剂, 具有通式I或IIR1 [(OA1)a-OH] n(I)H-(OA1)b-(OA2)c-(OA3)d-OH(Ⅱ)的聚亚烷基二醇醚不具有破乳活性, 其中R 1是一价低级的C 1 -C 20烷基,苯基或烷基 苯基,其中烷基为1-20个碳原子,A1至A3各自为2至4个碳原子的1,2-亚烷基或苯基亚乙基,n为1至10,a为1至50 b,c和d分别为0〜50,并且b + c + d的和大于3。