Molecular Simulation Study on the Miscibility of Methanol–Refined Oil–Water Three-Phase System
ID:155
Submission ID:169 View Protection:ATTENDEE
Updated Time:2025-09-30 11:00:23
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Oral Presentation
Start Time:2025-10-12 11:30 (Asia/Shanghai)
Duration:15min
Session:[S3] Computational heat transfer and fluid dynamics » [S4-2] Session 4-2: Computational multi-component and multiphase flows
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Abstract
本研究采用Materials Studio,通过计算内聚能密度(CED)和溶解度参数(δ),模拟含水量、甲醇比和温度对甲醇成品燃料油体系混溶性的影响。结果表明:(1)水是导致相分离的关键因素,水相和油相的δ值差异显著(|Δδ| =32 (J/cm3) 0.5),导致严重的不混溶性;(2)提高甲醇配比可以通过调整δ值来有效提高混溶性,尽管这种改善受到水油固有不相容性的限制;(3)提高温度降低了所有组分的δ值,缩小了两相之间的δ差,从而增强了系统的稳定性。本研究为利用现有成品管道对甲醇进行顺序输送过程中的混溶性预测和工艺参数优化提供了关键的理论支持。
Keywords
Molecular simulation, Methanol, Finished fuel oil, Miscibility, Sequential transportation
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