化工学报 ›› 2023, Vol. 74 ›› Issue (10): 3995-4019.DOI: 10.11949/0438-1157.20230583

• 综述与专论 • 上一篇    下一篇

沥青质分子缔合作用机制、表征、理论计算与应用研究进展

周惠敏1,2(), 田莹1,2(), 刘思亿1, 邹佳航1, 张润泽1, 贺常晴1,2(), 何林1,2(), 隋红1,2   

  1. 1.天津大学化工学院,天津 300072
    2.精馏技术国家工程研究中心,天津 300072
  • 收稿日期:2023-06-16 修回日期:2023-09-17 出版日期:2023-10-25 发布日期:2023-12-22
  • 通讯作者: 贺常晴,何林
  • 作者简介:周惠敏(1999—),女,硕士研究生,zhm_1999@tju.edu.cn
    田莹(1995—),女,博士研究生,chloetian@tju.edu.cn
  • 基金资助:
    国家自然科学基金项目(22078237)

Advances in molecular mechanisms, characterization, theoretical calculation and applications on asphaltenes aggregation

Huimin ZHOU1,2(), Ying TIAN1,2(), Siyi LIU1, Jiahang ZOU1, Runze ZHANG1, Changqing HE1,2(), Lin HE1,2(), Hong SUI1,2   

  1. 1.School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
    2.National Engineering Research Center of Distillation Technology, Tianjin 300072, China
  • Received:2023-06-16 Revised:2023-09-17 Online:2023-10-25 Published:2023-12-22
  • Contact: Changqing HE, Lin HE

摘要:

石油中沥青质分子的缔合聚集现象对于石油(尤其是重质油或致密油藏等非常规石油)的开采、储运、加工等具有重要影响,直接决定了原油的体相和界面性质,是矿物或管道器壁表面石油组分吸附沉积、油水(固)乳化、原油高黏等现象的主要成因。系统地综述了沥青质分子间缔合现象及理论发展,从分子间非共价相互作用角度探究了沥青质分子缔合聚集的作用机制,阐述了静电与色散作用主导的非共价相互作用对于沥青质缔合聚集的决定性影响规律。在此基础上,总结了近年来分子模拟等理论计算与界面表征技术在沥青质界面现象研究中的应用现状与发展方向。最后,基于沥青质分子缔合现象与理论,探讨了其在固体表面吸脱附、沉积、分散、破乳技术开发、降黏技术开发等领域的应用与思考。

关键词: 沥青质分子缔合聚集, 分子模拟, 界面表征, 非共价相互作用, 氢键, π-π堆叠

Abstract:

The phenomenon of asphaltene association and aggregation in petroleum has an important impact on the exploitation, upgrading, storage and transportation of petroleum (especially unconventional petroleum ores such as heavy oil or tight oil reservoirs). The aggregation of asphaltene molecules directly determines the physical and interfacial properties of crude oil, which is the main cause of adsorption and deposition of petroleum components on the surface of minerals or pipeline walls, emulsification of oil and water (solid), and high viscosity of crude oil. This article systematically reviews the phenomenon and theoretical development of intermolecular association of asphaltene, explores the mechanism of asphaltene molecular association and aggregation from the perspective of non covalent interactions between molecules, and elaborates on the decisive influence of non covalent interactions dominated by electrostatic and dispersion on asphaltene association and aggregation. On this basis, the current status and development direction of the application of theoretical computation and interfacial characterization techniques on the study of asphaltene interfacial phenomena are summarized. Finally, based on the theory and phenomenon of asphaltene molecular association, the application of asphaltene association in the fields of solid surface adsorption and desorption, precipitation and dispersion, emulsion breaking technology development and viscosity reduction technology development has been discussed.

Key words: asphaltene aggregation, molecular simulation, interfacial characterization, non-covalent interactions, hydrogen bond, π-π stacking

中图分类号: