天然气化工2018，Vol.43Issue(3)：33-38,54,7.
活性炭储存CH4性能的晶格理论模型及预测
Lattice theory model of CH4adsorption properties on activated carbon
摘要
Abstract
Establishing an adsorption isotherm model that adsorption isotherm is non-monotone with pressure increasing is one of the basic steps in the development of adsorbed natural gas (ANG) technology with practical application value. Based on the lattice thermodynamic equation, a lattice model for supercritical fluid adsorption in micropores was established, and the adsorption isotherms of CH4on activated carbon under different temperatures were predicted. The results show that CH4adsorption isotherm increases first and then decreases with pressure increasing and no longer meets type I isotherm. A linear correlation is observed between both interaction potentials, Eaamong CH4molecules and Esbetween CH4molecule and pore wall, and the temperature T. And the Es/k and T is positively correlated, but the Ea/k and T is negatively correlated. The fitting results from the lattice model are very good when CH4adsorption on activated carbon shows the extremum, and the correlation coefficients are all above 0.99. The predicted results are in good agreement with the measured results under different temperature, and all relative errors are less than 3%.关键词
晶格理论模型/活性炭/甲烷/吸附等温线/预测Key words
lattice theory model/activated carbon/methane/adsorption isotherm/prediction分类
化学引用本文复制引用
岳高伟,郑新军,曾春林,霍留鹏,梁为民..活性炭储存CH4性能的晶格理论模型及预测[J].天然气化工,2018,43(3):33-38,54,7.基金项目
国家自然科学基金(41772163) （41772163）
河南省高校科技创新团队支持计划资助(15IRT STHN029) （15IRT STHN029）
