摘要
以己二酸为扩链剂对DA10聚醚进行了改性 ,并用渤海原油对改性产物进行破乳评价 ,然后用红外光谱对反应进行了跟踪并对产物进行了结构表征 ,最后通过测定原料与产物对油水界面张力的影响 ,研究了扩链产物的破乳作用机理。结果表明 ,改性后的破乳剂的脱水性能明显增大 ,且随反应时间的增加 ,即相对分子质量的增大呈先增加后降低的趋势 。
A kind of polyether was modified by chain extension method with hexanedioic acid, the relative molecular mass of which was detected through the terminal analysis method. The demulsifying properties of the products were evaluated through demulsification of Bohai viscous crude oil. The structural changes of the reactants during the reaction were followed by infrared spectrometry. Finally the relation between the demulsifying effect and the chain extending modifiers at different reaction times was studied through the interfacial tension measurement with the mixture of crude oil, kerosene and the modifers by the method of drop volume. It was shown that the demulsifying ability of the modifiers enhanced substantially, the percent of water separated increased with reaction time increasing during initial half and five hours but decreased afterwards. The same tendency was observed in interfacial tension measurement with these modifiers.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2002年第2期48-53,共6页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
石油天然气集团公司资助项目 (合同编号 :990 80 9 0 5 )
