Journal of Industrial Technology (산업기술연구)

Kangwon National University, Institute of Industrial Technology (강원대학교 산업기술연구소)
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Application of Screening Technology for Capture of Hydrogen Sulfide Using Ionic Liquids

이온성 액체의 황화수소의 포집을 위한 스크리닝 기법의 활용

  • Han, Sangil (Department of Chemical Engineering, Changwon National University) ;
  • Lee, Bong-Seop (Department of Chemical Engineering, Division of Chemical and Biological Engineering, Kangwon National University)
  • Received : 2019.09.21
  • Accepted : 2019.10.07
  • Published : 2019.10.31
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Abstract

Hydrogen sulfide ($H_2S$) is mainly produced along with methane and hydrocarbons in many gas fields as well as hydrodesulfurization processes of crude oils containing sulfur compounds and the emission of $H_2S$ has a considerable effect on both environmental problem and human health aspects due to formation of, e.g. acid rain and smog. In recent years, ionic liquids (ILs) have been proposed as the most promising solvents for $CO_2$ and hazardous pollutants capture, such as $H_2S$ and sulfur dioxide ($SO_2$). In this work, we demonstrate the use of the predictive COSMO-SAC model for the prediction of Henry's law constant of $H_2S$ in ILs. Furthermore, the method is used to screen for potential IL candidates for $H_2S$ capture from a set of 2,624 ILs formed from 82 cations and 32 anions. The effects of cation on the Henry's law constant of $H_2S$ such as (i) the variation of the alkyl chain length on cation, (ii) the substituent of methyl group ($-CH_3$) for H in C(2) position and (iii) the change of ring structure for cation family are clearly predicted by COSMO-SAC model.

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References

  1. F.S.a.T. Manning, R. E., 1991, Oilfield Processing of Petroleum Volume One: Natural Gas., PennWell Books: Tulsa.
  2. S.J. Smith, J. van Aardenne, Z. Klimont, R.J. Andres, A. Volke, S. Delgado Arias, 2011, Anthropogenic sulfur dioxide emissions: 1850-2005, Atmos. Chem. Phys., 11 1101-1116. https://doi.org/10.5194/acp-11-1101-2011
  3. J. Kumelan, A.P.S. Kamps, D. Tuma, A. Yokozeki, M.B. Shiflett, G. Maurer, 2008, Solubility of tetrafluoromethane in the ionic liquid [hmim] [Tf2N], J. Phys. Chem. B, 112 3040-3047. https://doi.org/10.1021/jp076737t
  4. J. Wang, W. Sun, C. Li, Z. Wang, 2008, Correlation of infinite dilution activity coefficient of solute in ionic liquid using UNIFAC model Fluid Phase Equilibria, 264 235-241. https://doi.org/10.1016/j.fluid.2007.11.007
  5. D. Kerle, R. Ludwig, A. Geiger, D. Paschek 2009, Temperature Dependence of the Solubility of Carbon Dioxide in Imidazolium-Based Ionic Liquids, J. Phys. Chem. B, 113 12727-12735. https://doi.org/10.1021/jp9055285
  6. D.M. Eike, J.F. Brennecke, E.J. Maginn, 2004, Predicting Infinite-Dilution Activity Coefficients of Organic Solutes in Ionic Liquids, Ind. Eng. Chem. Res., 43 1039-1048. https://doi.org/10.1021/ie034152p
  7. Y.S. Sistla, A. Khanna, 2011, Validation and Prediction of the Temperature-Dependent Henry's Constant for CO2-Ionic Liquid Systems Using the Conductor-like Screening Model for Realistic Solvation (COSMO-RS), J. Chem. Eng. Data, 56 4045-4060. https://doi.org/10.1021/je200486c
  8. B.-S. Lee, S.-T. Lin, 2013, Prediction of phase behaviors of ionic liquids over a wide range of conditions, Fluid Phase Equilib., 356 309-320. https://doi.org/10.1016/j.fluid.2013.07.046
  9. C.M. Hsieh, S.I. Sandler, S.T. Lin, 2010, Improvements of COSMO-SAC for vapor-liquid and liquid-liquid equilibrium predictions, Fluid Phase Equilib., 297 90-97. https://doi.org/10.1016/j.fluid.2010.06.011