Adsorption Behavior of Methane on Kaolinite

• DOI: 10.1021/acs.iecr.7b00838
• Publication Date: 2017-05-10T16:01:41Z
• Authors: Jian Xiong; Xiangjun Liu; Lixi Liang; Qun Zeng
• Keywords: Mole fraction

In this work, the adsorption behaviors of CH4 in slit-like kaolinite pores were investigated using grand canonical Monte Carlo method. The research results show that isosteric heat decreases with increasing pore size and on can be characterized as physical adsorption. potential energy between was found to decrease pressure or decreasing size, indicating sites changed from higher-energy lower-energy sites. capacity decreased mesopores. With temperature, decreased, sites, resulting a capacity. As result van der Waals force interactions, Coulomb hydrogen-bonding water molecules occupies walls directional manner, causing accumulate. accumulation water, occupied spaces CH4, leading gas following order: CO2 > N2. mole fraction N2 CO2, phase changed, space