不同季铵盐作用下的CO2水合物相平衡

门文欣,彭庆收,桂霞

Phase equilibrium of CO2 hydrate in the presence of four different quaternary ammonium salts

Wenxin MEN,Qingshou PENG,Xia GUI

表3 季铵盐作用下CO2水合物的相变潜热

Table 3 Dissociation enthalpies of CO2 salt hydrate under quaternary ammonium action

促进剂 质量分数/% Aslope ΔHd /(kJ·mol-1) R2 TBAF 5 -23641 163.51 0.9937 7 -23457 167.52 0.9975 10 -28785 205.49 0.9944 12 -23947 171.12 0.9927 15 -24775 175.54 0.9972 TBAC 5 -10925 74.75 0.9930 7 -20674 126.89 0.9948 10 -21348 147.98 0.9946 12 -22486 156.40 0.9959 15 -27154 194.80 0.9951 TBAB 5 -26843 198.50 0.9985 7 -25296 181.37 0.9923 10 -24526 178.82 0.9961 12 -23530 174.14 0.9982 15 -23850 172.88 0.9910 TEBAC 5 -8882.8 59.05 0.9942 7 -9704.5 64.49 0.9973 10 -9588.2 63.06 0.9952 12 -9162.1 61.96 0.9956 15 -9904.5 65.37 0.9973