煤矿安全2024，Vol.55Issue(6)：40-48,9.DOI:10.13347/j.cnki.mkaq.20231354
煤吸附CO2压缩因子快速计算模型研究
Study on rapid calculation model of CO2 compression factor for coal adsorption
摘要
Abstract
In order to study the optimal equation and fast calculation model of CO2 compression factor suitable for coal adsorption among 6 kinds of gas state equations commonly used in engineering,such as Virial,V-d-W,R-K,S-R-K,P-R and Tongjingshan,three coal samples with different metamorphism degrees were taken as research objects.The CO2 adsorption capacity,CO2 adsorp-tion constant and adsorption isotherm of coal obtained by using the above six equations at the test temperature of 30℃were meas-ured by volumetric method.The research shows that:compared with the CO2 compression factor provided by the National Institute of Standards and Technology(NIST),the maximum absolute error of CO2 compression factor obtained by Viral state equation is 0.38％.The adsorption isotherm has the highest goodness of fit;the absolute value error of the measured CO2 adsorption constant a is the smallest,and the optimal gas state equation to determine the adsorption CO2 compression factor of coal is the Viral equation.At the same time,a simple and fast calculation model of CO2 compression factor is proposed when the test temperature is 30℃.After testing,the absolute error of the absolute value of the CO2 adsorption constant a calculated by the US standard is less than 1％,and the operation is simple,fast and accurate.关键词
CO2压缩因子/瓦斯灾害/Viral状态方程/CO2吸附量/CO2吸附常数Key words
CO2 compression factor/gas disaster/Viral equation of state/CO2 adsorption capacity/CO2 adsorption constant分类
矿业与冶金引用本文复制引用
雷红艳..煤吸附CO2压缩因子快速计算模型研究[J].煤矿安全,2024,55(6):40-48,9.基金项目
中煤科工集团重庆研究院自立科研开发资助项目(2023YBXM31) （2023YBXM31）
