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Lab-on-a-Chip Systems in Asphaltene Characterization: A Review of Recent Advances
Energy & Fuels ( IF 5.2 ) Pub Date : 2021-05-21 , DOI: 10.1021/acs.energyfuels.1c00717
Saeed Mozaffari 1, 2 , Homa Ghasemi 3 , Plamen Tchoukov 2, 4 , Jan Czarnecki 2 , Neda Nazemifard 2
Affiliation  

Microfluidics-based lab-on-a-chip systems have shown great promise for characterization of heavy oil and its fractions. Asphaltenes, comprising the heaviest and most complex fraction of heavy oil, are known for their strong tendency for aggregation and causing severe problems in the production and transportation of heavy oil. Asphaltenes are also shown to play a key role in stabilization of water-in-crude oil (W/CO) emulsions and significantly impact the rheological properties of crude oil. Therefore, this Review highlights the recent progress made by micro-/nanofluidic technologies to understand the asphaltenes’ phase behavior, including solubility, aggregation/precipitation, and deposition at the micro-/nanoscale. The application of these miniaturized systems in the study of W/CO emulsions and the coalescence kinetics of emulsified water droplets are also reviewed herein. Additionally, recent developments on understanding the heavy oil rheology (in the absence and presence of asphaltenes) in the micro- and nanoconfinement in combination with theoretical predictions are presented in this study. Finally, some ideas and recommendations for future research directions on asphaltene-related problems using micro-/nanofluidic systems are highlighted.

中文翻译:

沥青质表征中的芯片实验室系统:最新进展回顾

基于微流体的芯片实验室系统在重油及其馏分的表征方面显示出巨大的希望。沥青质是重油中最重和最复杂的部分,因其强烈的聚集趋势而闻名,并在重油的生产和运输中造成严重问题。沥青质还被证明在稳定原油包水 (W/CO) 乳液方面起着关键作用,并显着影响原油的流变特性。因此,本综述重点介绍了微/纳米流体技术在了解沥青质相行为方面取得的最新进展,包括微/纳米尺度的溶解度、聚集/沉淀和沉积。本文还综述了这些小型化系统在 W/CO 乳液研究和乳化水滴聚结动力学研究中的应用。此外,本研究还介绍了在理解微米和纳米限制中重油流变学(在不存在和存在沥青质的情况下)以及理论预测方面的最新进展。最后,强调了使用微/纳米流体系统对沥青质相关问题的未来研究方向的一些想法和建议。
更新日期:2021-06-03
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