三聚甲醛-甲醛-水-[BMIM][NO₃] 的气液相平衡研究.

李 飞; 张 涛; 吕 莉; 唐文翔; 唐盛伟

The effects of ionic liquids [BMIM][NO3] on the vapor-liquid equilibria of formaldehyde-trioxanewater（ FA-TOX-H2O） systems were studied. The results showed that adding [BMIM][NO3] could effectively improve the vapor-liquid equilibrium of the system, and adding a certain amount of [BMIM][NO3] could eliminate the azeotrope phenomenon. The non-random two-liquid (NRTL) model was used to fit the experimental data. The average relative deviation between experimental and calculated values of the TOX-H2O-[BMIM][NO3] ternary system was 1.32%, and that of the FA-H2O-[BMIM][NO3] ternary system was 1.74%. The vapor-liquid equilibrium of TOX-FA-H2O- [BMIM][NO3] was measured. The results showed that the addition of [BMIM][NO3] could increase the molar fraction of TOX in the vapor phase by 17.49%. The results are significant for increasing the molar fraction of TOX in vapor phase.

VAPOR-liquid equilibrium; MOLE fraction; TERNARY system; IONIC liquids; VAPORS

Journal of East China University of Science & Technology, 2024, Vol 50, Issue 6, p795

1006-3080

Academic Journal

10.14135/j.cnki.1006-3080.20231210001