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    • 9. 发明授权
    • Method for inhibiting hydrate formation
    • 抑制水合物形成的方法
    • US5491269A
    • 1996-02-13
    • US306331
    • 1994-09-15
    • Karla S. ColleRussell H. Oelfke
    • Karla S. ColleRussell H. Oelfke
    • C09K8/52C10L3/10F17D1/05F17D1/16C07C7/20
    • C10L3/10C09K8/52F17D1/05F17D1/16C09K2208/22Y10S585/95Y10T137/0329Y10T137/0391
    • A method for inhibiting the formation of clathrate hydrates in a fluid having hydrate forming constituents is disclosed. More specifically, the method can be used in treating a petroleum fluid stream such as natural gas conveyed in a pipe to inhibit the formation of a hydrate restriction in the pipe. The hydrate inhibitors used for practicing the method are substantially water soluble polymers formed from a cyclic imino ether. Some examples of such inhibitors include various N-acyl polyalkyleneimines, such as N-acyl substituted polyethyleneimine, N-acyl substituted polypropyleneimine, N-acyl substituted polybutyleneimine, N-acyl substituted polypentyleneimine and copolymers thereof. Also, such N-acyl substituted polyalkyleneimines can be used in various ratios with other substantially water soluble polymers and copolymers. Preferably, a solvent such as water, brine, alcohol, or mixtures thereof is used to produce an inhibitor solution or mixture to facilitate treatment of the petroleum fluid stream.
    • 公开了一种抑制在具有水合物形成成分的流体中形成笼形水合物的方法。 更具体地说,该方法可用于处理在管道中输送的天然气等石油流体流,以抑制管道中的水合物限制。 用于实施该方法的水合物抑制剂基本上是由环状亚氨基醚形成的水溶性聚合物。 这些抑制剂的一些实例包括各种N-酰基聚亚烷基亚胺,例如N-酰基取代的聚乙烯亚胺,N-酰基取代的聚亚丙基亚胺,N-酰基取代的聚亚苯基亚胺,N-酰基取代的聚亚苯基亚胺及其共聚物。 此外,这种N-酰基取代的聚亚烷基亚胺可以与其它基本上水溶性的聚合物和共聚物以各种比例使用。 优选地,使用溶剂如水,盐水,醇或其混合物以产生抑制剂溶液或混合物以便于处理石油流体物流。