公开(公告)号：US20010056164A1

公开(公告)日：2001-12-27

申请号：US09853600

申请日：2001-05-14

Applicant: BP Exploration Operating Company Limited

Inventor： Simon Neil Duncum ,  Philip Kenneth Gordon Hodgson ,  Keith James ,  Christopher George Osborne

IPC: C08F220/10 ,  C08F018/00

CPC classification number: C10L1/195 ,  C09K8/524 ,  C10L1/143 ,  C10L1/1824 ,  C10L1/1852 ,  C10L1/1963 ,  C10L1/1973 ,  C10L1/2222 ,  C10L1/2225 ,  C10L1/223 ,  C10L1/2235 ,  C10L1/224 ,  C10L1/2283 ,  C10L1/23 ,  C10L1/232 ,  C10L1/238 ,  C10L1/2437 ,  C10L1/2641 ,  C10L1/2658 ,  C10L1/328

Abstract: Inhibitors of wax deposition for crude oils are polymers of a monomer with structural units derived from at least one ester (i) of an aliphatic carboxylic acid with an aliphatic alcohol, wherein one of the acid and alcohol is ethylenically unsaturated and the other of the acid and alcohol has a long chain group of 14-40 carbons, and a monomer with structural units derived from a corresponding ester (3) with structural units derived from an aliphatic carboxylic acid and an aliphatic alcohol, wherein one of the acid and alcohol is ethylenically unsaturated and the other has an aliphatic group of 1-13 carbons, such that at least 30% preferably 50-90% of the said aliphatic groups have 15-35 carbons. They are preferably made by transesterification. Blends of such polymers and/or the corresponding homopolymers or copolymers of ester 1 and/or polyalkylene imines with long side chains, and optionally with monomeric polar additives may be used as inhibitors.

Abstract translation: 用于原油的蜡沉积抑制剂是具有衍生自脂族羧酸与脂肪醇的至少一种酯（i）的结构单元的单体的聚合物，其中酸和醇之一是烯键式不饱和的，另一种酸 并且醇具有14-40个碳的长链基团和具有衍生自具有衍生自脂族羧酸和脂族醇的结构单元的相应酯（3）的结构单元的单体，其中酸和醇之一是烯属的 另一个具有1-13个碳原子的脂族基团，使得至少30％，优选50-90％的所述脂肪族基团具有15-35个碳原子。 它们优选通过酯交换反应制备。 可以使用这种聚合物和/或相应的酯1和/或聚亚烷基亚胺与长侧链的均聚物或共聚物以及任选的单体极性添加剂的共混物作为抑制剂。