Mechanism of maleic anhydride-vinyl acetate-higher amine terpolymer as pour point depressant for diesel fuel

被引：0

作者：

Du T. ^{[1
]}

Liu H. ^{[2
]}

Wang S. ^{[1
]}

Gu Z. ^{[3
]}

Zhang H. ^{[4
]}

机构：

[1] State Key Laboratory of Heavy Oil Processing, China University of Petroleum

[2] Faculty of Chemical Science and Engineering, China University of Petroleum

[3] Technology Bureau of Dazhou City of Sichuan Province

[4] China National Oil and Gas Exploration and Development Corporation

来源：

Shiyou Xuebao, Shiyou Jiagong/Acta Petrolei Sinica (Petroleum Processing Section) | 2010年 / 26卷 / 03期

关键词：

Co-crystallization; Cold filter plugging point; Mechanism; Pour point depressant; Wax crystal;

D O I：

10.3969/j.issn.1001-8719.2010.03.017

中图分类号：

学科分类号：

摘要：

The mechanism of maleic anhydride-vinyl acetate-higher amine terpolymer (MV-a) as the pour point depressant for diesel oil was explored preliminarily by using infrared spectrometry(IR), differential scanning calorimeter(DSC) and dynamic light scattering(DLS) methods. The IR adsorption peak area ratios of A1363/A1377 and A722/A733 were increased remarkably for the wax sample separated from diesel oil with MV-a added, compared with that of wax sample without MV-a, showing that the structure of wax crystal was varied obviously. The co-crystallization of wax crystal and MV-a molecules might be the mechanism of cold filter plugging point reduction for diesel oil. If the peak areas and slopes of DSC curves reduced obviously for the diesel oil with MV-a added compared with that without MV-a, it will be better for the cold filter plugging point reduction of diesel oil. The colloidal dispersion was formed when the grain diameter of MV-a in diesel oil was less than 1000 nm, and the cold filter plugging point depression was better, too.

引用

页码：414 / 418

页数：4