一种新型多季铵盐反相破乳剂的合成及性能评定

以聚醚胺D-230、环氧氯丙烷、N,N-二甲基乙醇胺为原料，合成一种新型多季铵盐反相破乳剂，将n（D-230）/n（环氧氯丙烷）分别为1:2和1:4得到产品命名为Y-562、Y-564。取渤海某平台新鲜原油用瓶试法对合成多季铵盐反相破乳剂产品进行评价，结果表明，在破乳温度为70 ℃、破乳时间为20 min的条件下，当Y-564添加量为15 mg/L时，油中含水量为0.7%，水中含油质量浓度为80 mg/L，下层水质清且油水界面清晰，达到最佳脱水效果。

SYNTHESIS AND PROPERTIES OF A NOVEL REVERSED DEMULSIFIER OF POLYQUATERNARYAMMONIUM SALT

A novel polyquaternary ammonium reversed demulsifier was synthesized with Jeffamine D-230, epichlorohydrin and N, N-dimethylethanolamine as raw materials. According to the molar ratio of Jeffamine D-230 to epichlorohydrin (1:2 and 1:4), The synthesized products with n(D-230)/n(epichlorohydrin)=1:2 and 1:4 are named Y-562 and Y-564,respectively. They were evaluated by bottle test with fresh crude oil from a petroleum platform in Bohai. The results indicated that when the demulsification temperature is 70℃, the demulsification time is 20 min and the amount of Y-564 is 15 mg/L, the water content in the oil is 0.7% and the amount of oil in the water is 80mg/L. The water layer in lower part is clear and the oil and water interface is clear, it means to achieve the optimum dehydration effect.