煤等温吸附兰氏常数实测值与计算值的比较研究

Comparative study between the measured and calculated values of coal isothermal adsorption Langmuir constant

用数学模型法(半理论半经验法)提出求煤等温吸附兰氏常数计算值的方法。以宁夏吴忠韦一矿地质勘探报告中所列的23个煤等温吸附常数实测值与计算值进行比较,计算的煤储层的吸附特征(兰氏体积与兰氏压力)与实测值吻合度很好。对于Langmuir体积而言,实测值与计算值的误差是0%~43%,平均误差为12.7%。

With the mathematical model(semi-theoretical and semi-empirical method),the method to calculate the coal isothermal adsorption Langmuir constant was proposed.23 coal isothermal adsorption constants calculated values were compared with the measured values,which were listed in Wei-Yi mine geological exploration report,Ningxia Wuzhong.The calculated values of adsorption characteristics of coal reservoir were in good agreement with the measured values.As for Langmuir volume,errors between the measured and calculated values are 0%-43%,the average error is 12.7%.