A study on dynamic desorption process of methane in slits

被引：13
作者：
Chen, Lei [1 ]
Huang, Ding-Bin [1 ]
Wang, Shan-You [1 ]
Nie, Yi-Nan [1 ]
He, Ya-Ling [1 ]
Tao, Wen-Quan [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Minist Educ, Key Lab Thermofluid Sci & Engn, Xian 710049, Shaanxi, Peoples R China
来源：
ENERGY | 2019年 / 175卷
基金：
中国国家自然科学基金;
关键词：
Shale gas; Desorption; Molecular dynamics simulation; Differential equation; SHALE GAS EXPLORATION; NATURAL-GAS; ADSORPTION CAPACITY; EMISSIONS; RESERVOIRS; COAL; OPTIMIZATION; PRESSURE; STORAGE; MODEL;
D O I：
10.1016/j.energy.2019.03.148
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The desorption behavior of methane in slit was studied in this paper. We build a differential equation which describe dynamic desorption process, and propose a correction method. The mass transfer resistance in free region is considered and the accuracy of the result is improved using this correction method. Based on differential equation, the effects of pressure, temperature and solid material on dynamic desorption speed are analyzed. Desorption becomes faster when pressure increases. When pressure is low, desorption speed increases with increasing temperature; oppositely, desorption speed decreases with increasing temperature. When pressure is low, the desorption speed at different wall material is quartz > kaolinite > graphite; when pressure is high, the desorption speed is quartz > graphite > kaolinite. (C) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1174 / 1180
页数：7
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