变温变压下煤吸附实测值与理论值的误差分析

Error Analysis of Coal Variable Temperature and Pressure Swing Adsorption between Measured and Theoretical Value

用文献中的兰氏体积和兰氏方程参数计算出在实测温度和实测压力下的吸附体积作为"兰氏计算值";用LI吸附-流动方程回归处理实测值,得LI氏吸附特定参数。用LI氏吸附特定参数计算出在实测温度和实测压力下的吸附体积作为"李氏计算值"。分别计算"兰氏计算值"与"实测值"之间的平均相对误差δ_1和"李氏计算值"与"实测值"之间的平均相对误差δ_2。比较结果显示用LI吸附-流动方程能更简单精确地描述变温变压下煤吸附实验,因为δ_2<δ1。

The all measured adsorption isotherm data is defined as ＂experimental value＂,and the adsorption volume calculated according Liang＇s Langmuir volume and Langmuir pressure is defined as ＂ computed Langmuir value＂.The relative average error δ1 is calculated between the ＂computed Langmuir value＂ and ＂experimental value＂.The adsorption volume calculated according LI adsorption-activated diffusion equation as a ＂computed Li value＂.The relative average error δ2 is calculated between the ＂computed Li value＂ and ＂experimental value＂.The result did show that LI adsorption-flow equation can characterize,conveniently,coal variable temperature and pressure swing adsorption,because δ2 δ1.