胡定凯,马国锐,徐燕东,王强

• 1:新疆大学化工学院煤炭清洁转化与化工过程新疆重点实验室
• 2:中国石化西北油田分公司石油工程技术研究院

摘要(Abstract)：

在温度333.15 K~373.15 K条件下,采用反气相色谱技术表征了原油表面性质,探究了原油表面的探针保留行为和吸附焓?H_a~s.分别采用Schultz和Dorris-Gray法得到了原油表面色散自由能(γ_l~d),并获得其表面Lewis酸碱常数.结果表明:在实验温度范围内,原油表面色散自由能的值随温度升高而呈线性增大.原油表面Lewis酸常数(K_A)为0.35,碱常数(K_B)为2.70,酸碱常数综合表现K_B/K_A=7.71,其表面整体呈现两性偏碱性特点.研究结果可为原油界面相研究提供参考.

关键词(KeyWords)： 原油;反气相色谱;表面色散自由能;Lewis酸碱常数

Abstract:

Keywords:

基金项目(Foundation): 国家重大专项(2016ZX05053);; 中石化重大专项(ZDP17004)

作者(Author): 胡定凯,马国锐,徐燕东,王强

DOI: 10.13568/j.cnki.651094.651316.2020.10.31.0001

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