改性聚硅氧烷稠油破乳剂的合成及其性能

发布时间：2018-04-13 04:25

本文选题：含氢硅油 + 烯壬基酚聚醚　；参考：《精细化工》2017年11期

【摘要】：以含氢硅油、烯壬基酚聚醚与甲基丙烯酸十二酯为原料制备了一种梳型改性聚硅氧烷稠油破乳剂(GPX1),并用FTIR、1HNMR、单滴法、表面张力法、微生物降解法对聚合物GPX1进行了表征和测试。结果表明,液膜的破裂速率常数k含GPX1的自来水=0.257 46,高于k含SP169的自来水=0.218 84,说明GPX1能够有效降低液膜稳定性,加快液膜的排液速率。微生物降解性能测试结果表明,投加90 mg/L的GPX1于耗氧活性污泥中,24 h后体系中COD降到24.8 mg/L,低于空白值33.4 mg/L。破乳性能测试结果表明,GPX1与腰果酚胺醛树脂按质量比4∶6可得出最佳复配破乳剂FW1,再将100 mg/L FW1、80 mg/L聚合氯化铝与3 mg/L阳离子聚丙烯酰胺(CPAM)进行复配,对制备的乳状液破乳效果达到最佳,脱水率可达到98.32%,污水含油量为19.7 mg/L,油水界面整齐。
[Abstract]:A comb-type modified polysiloxane demulsifier (GPX1) was prepared from hydrosilicon oil, nonylphenol polyether and dodecyl methacrylate as raw materials. The polymer GPX1 was characterized and tested by FTIR 1H N M R, single drop method, surface tension method and microbial degradation method.The results show that the rupture rate constant of liquid membrane k contains GPX1 0.257 46, which is higher than that of k containing SP169 0.218 84, which indicates that GPX1 can effectively reduce the stability of liquid membrane and accelerate the liquid rate of liquid membrane.The results of microbial degradation test showed that the COD in the system decreased to 24.8 mg / L after adding 90 mg/L to the aerobic activated sludge for 24 h, which was lower than the blank value of 33.4 mg / L.The results of demulsification performance test showed that the best demulsifier FW1 could be obtained at 4:6 according to the mass ratio of GPX1 and cashew phenol amine aldehyde resin, and then the 100 mg/L FW1 80 mg/L polyaluminum chloride was mixed with 3 mg/L cationic polyacrylamide (CPAM).The demulsification effect of the prepared emulsion is the best, the dehydration rate can reach 98.32 and the oil content of the wastewater is 19.7 mg / L, and the oil-water interface is neat.
【作者单位】：西北大学化工学院;长庆油田公司油气工艺研究院;西安市轻工业研究所;
【基金】：陕西省科技统筹创新工程计划项目(2014KTCL01-09) 陕西省教育厅科学研究计划项目(2013JK0692,2013JC21)~~
【分类号】：TE39

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