CO2混合工质的气液相平衡的混合规则对比与预测研究

吴子睿,孙瑞,石凌峰,田华,王轩,舒歌群

A comparative and predictive study of the mixing rules for the vapor-liquid equilibria of CO2-based mixtures

Zirui WU,Rui SUN,Lingfeng SHI,Hua TIAN,Xuan WANG,Gequn SHU

表2 三种混合规则对CO2+HCs二元混合工质气液相平衡计算偏差

Table 2 Calculation deviations in the vapor-liquid equilibrium of the CO2+HCs mixtures by three mixing rules

混合工质 实验点数 T/K WS MHV1 vdW AARD(p) AAD(y) AARD(p) AAD(y) AARD(p) AAD(y) CO2+n-butane[20-21] 111 311~377 0.58% 0.0068 0.95% 0.0086 0.96% 0.0089 CO2+isobutane[22-23] 110 270~369 0.58% 0.0054 0.85% 0.0069 1.33% 0.0074 CO2+propane[4] 92 273~323 0.35% 0.0050 0.375% 0.0033 0.64% 0.0031 CO2+propylene[24-25] 55 252~298 0.77% 0.0068 0.76% 0.0082 1.11% 0.0068 平均 0.57% 0.0060 0.73% 0.0068 1.01% 0.0066