SCI和EI收录∣中国化工学会会刊

中国化学工程学报 ›› 2023, Vol. 59 ›› Issue (7): 210-221.DOI: 10.1016/j.cjche.2022.11.012

• Full Length Article • 上一篇    下一篇

Measurement and model of density, viscosity, and hydrogen sulfide solubility in ferric chloride/trioctylmethylammonium chloride ionic liquid

Zhonghao Li, Yuanyuan Yang, Huanong Cheng, Yun Teng, Chao Li, Kangkang Li, Zhou Feng, Hongwei Jin, Xinshun Tan, Shiqing Zheng   

  1. College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  • 收稿日期:2022-08-01 修回日期:2022-11-03 出版日期:2023-07-28 发布日期:2023-10-14
  • 通讯作者: Huanong Cheng,E-mail:chn@qust.edu.cn
  • 基金资助:
    Financial support from the National Natural Science Foundation of China (21775081) and Shandong Province Natural Science Foundation (ZR2020MB145) is gratefully acknowledged.

Measurement and model of density, viscosity, and hydrogen sulfide solubility in ferric chloride/trioctylmethylammonium chloride ionic liquid

Zhonghao Li, Yuanyuan Yang, Huanong Cheng, Yun Teng, Chao Li, Kangkang Li, Zhou Feng, Hongwei Jin, Xinshun Tan, Shiqing Zheng   

  1. College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
  • Received:2022-08-01 Revised:2022-11-03 Online:2023-07-28 Published:2023-10-14
  • Contact: Huanong Cheng,E-mail:chn@qust.edu.cn
  • Supported by:
    Financial support from the National Natural Science Foundation of China (21775081) and Shandong Province Natural Science Foundation (ZR2020MB145) is gratefully acknowledged.

摘要: The density and viscosity of ferric chloride/trioctylmethylammonium chloride ionic liquid (rFeCl3/[A336]Cl) with different molar ratios (r = 0.1-0.8) of FeCl3 to [A336]Cl were measured at temperatures from 313.15 to 358.15 K and atmospheric pressure. The density and viscosity data were fitted by the relevant temperature variation equations, respectively. The variation of density and viscosity with temperature and r was obtained. The solubility of rFeCl3/[A336]Cl to H2S was measured at temperatures from 318.15 to 348.15 K and pressures from 0 to 150 kPa. The effects of temperature, pressure, and r on the solubility of H2S were discussed. The reaction equilibrium thermodynamic model (RETM) was used to fit the H2S solubility data, and the average relative error was less than 1.3%, indicating that the model can relate the solubility data well. And Henry's constant and chemical reaction equilibrium constant were obtained by the RETM fitting. The relationships of Henry's constant and chemical reaction equilibrium constant with temperature and r were analyzed.

关键词: Ionic liquids, Hydrogen sulfide, Solubility, Henry's constant, Chemical reaction equilibrium constant, Model

Abstract: The density and viscosity of ferric chloride/trioctylmethylammonium chloride ionic liquid (rFeCl3/[A336]Cl) with different molar ratios (r = 0.1-0.8) of FeCl3 to [A336]Cl were measured at temperatures from 313.15 to 358.15 K and atmospheric pressure. The density and viscosity data were fitted by the relevant temperature variation equations, respectively. The variation of density and viscosity with temperature and r was obtained. The solubility of rFeCl3/[A336]Cl to H2S was measured at temperatures from 318.15 to 348.15 K and pressures from 0 to 150 kPa. The effects of temperature, pressure, and r on the solubility of H2S were discussed. The reaction equilibrium thermodynamic model (RETM) was used to fit the H2S solubility data, and the average relative error was less than 1.3%, indicating that the model can relate the solubility data well. And Henry's constant and chemical reaction equilibrium constant were obtained by the RETM fitting. The relationships of Henry's constant and chemical reaction equilibrium constant with temperature and r were analyzed.

Key words: Ionic liquids, Hydrogen sulfide, Solubility, Henry's constant, Chemical reaction equilibrium constant, Model