宏观实验研究和微观分子模拟重型青和页岩岩之间的吸附相互作用
Yuqi Chen1, Li Chen1, Xueping Huang1
1School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, China.
Langmuir : the ACS journal of surfaces and colloids
|December 8, 2025
概括
在页岩石上沉重的青烯吸附影响了石油回收. 群岛类型的青因其配置和相互作用模式而表现出最强的吸附性,为增强页岩油回收提供了见解.
科学领域:
- 石油工程是石油工程中的一个.
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 页岩储中重青的内部吸附显著影响页岩油的流动性和回收.
- 了解青 - 页岩相互作用对于优化石油开采过程至关重要.
研究的目的:
- 通过宏观实验和微观模拟,研究青在页岩伊利特上的吸附相互作用.
- 阐明控制青醇吸附的机制及其对页岩油回收的影响.
主要方法:
- 进行了批量类型和平衡吸附实验,以确定吸附同热量和动力学.
- 用分子动力学 (MD) 模拟来研究各种配置的微观水平上的青烯吸附.
- 在不同度下分析青和伊利特之间的相互作用力.
主要成果:
- 吸附遵循了兰迈尔单层模型 (qmax = 19.43 mg/g) 和伪二阶 (PSO) 动力学 (kPSO = 0.37 g/mg·h)).
- 群岛类型的青具有最低的吸附能量 (-2086.58 kcal/mol) 和最强的吸附能量,这是由于"垂直插入"模式.
- 在较低度下观察到范德瓦尔斯,结和协调相互作用,而在较高度下观察到π-π相互作用和聚合.
结论:
- 在Illite上青烯吸附是一个复杂的过程,受分子配置和度的影响.
- 这些发现提供了对重油-页岩粘土相互作用的关键见解,这对于增强页岩油回收至关重要.
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