MPEG 接枝改性羧甲基壳聚糖作为一种高效的 O/W 原油乳状液破乳剂。
MPEG grafted alkylated carboxymethyl chitosan as a high-efficiency demulsifier for O/W crude oil emulsions.
机构信息
Key Laboratory for Green Chemical Process of Ministry of Education, Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, China.
School of Textile and Clothing, Nantong University, Nantong 226019, China.
出版信息
Carbohydr Polym. 2020 Aug 1;241:116309. doi: 10.1016/j.carbpol.2020.116309. Epub 2020 Apr 22.
Three kinds of novel environmentally benign and high-efficiency crude oil demulsifiers were prepared using methoxy polyethylene glycol (MPEG) to modify alkylated carboxymethyl chitosan (ACMC). Structures of the demulsifiers were confirmed using FT-IR and H NMR, and the relationship between surface tension and concentration was tested. Demulsification performance was investigated using the bottle test method with oil-in-water (O/W) emulsions that were prepared in lab conditions. The demulsification efficiency was as high as 79.1 %-84.9 %, and the possible mechanism of the demulsification process is discussed. Results show that MPEG-grafted ACMC (MPEG-ACMC) has a promising application as a demulsifier for dealing with emulsified O/W crude oil.
三种新型环保高效原油破乳剂是利用甲氧基聚乙二醇（MPEG）对烷基化羧甲基壳聚糖（ACMC）进行改性而制备的。通过傅里叶变换红外光谱（FT-IR）和核磁共振氢谱（H NMR）对破乳剂的结构进行了确认，并测试了表面张力与浓度的关系。采用瓶试法对实验室条件下制备的油包水乳状液（O/W）进行了破乳性能研究。破乳效率高达 79.1%-84.9%，并对破乳过程的可能机理进行了探讨。结果表明，MPEG 接枝 ACMC（MPEG-ACMC）有望作为一种处理乳化 O/W 原油的破乳剂。
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