A simple thermo-physical model for vapor-liquid equilibrium of the reactive HIx (HI-H2O-I2-H2) system

Subhasis Mandal; Amiya K. Jana

Journal of Industrial and Engineering Chemistry, Vol.20, No.5, 2632-2635, September, 2014

DOI10.1016/j.jiec.2013.10.050 Export Citation

A simple thermo-physical model for vapor-liquid equilibrium of the reactive HIx (HI-H2O-I2-H2) system

Subhasis Mandal, and Amiya K. Jana^†

Energy and Process Engineering Laboratory, Department of Chemical Engineering, Indian Institute of Technology, Kharagpur 721 302, India

E-mail:

Thermodynamic phase equilibrium of the reactive HIx system encountered in the sulfur-iodine (SI) cycle has been identified as a basic research need for the hydrogen economy. In this communication, a simple NRTL (nonrandom two-liquid)-based vapor-liquid equilibrium (VLE) model is devised for the HIx system considering the HI decomposition reaction in the gas phase only. We propose a new set of NRTL binary interaction parameters as well as a new expression for the HI decomposition chemical equilibrium constant as a function of temperature. This simple VLE model with the use of only one set of NRTL binary parameters is capable of reproducing the Larousse et al. (Int. J. Hydrogen Energy 34 (2009) 3258-3266) experimental data for a wide range of pressures (1-24 bar) and HI concentrations beyond the azeotrope.

Keywords:Vapor-liquid equilibrium;Reactive HI-H2O-I2-H2 system;NRTL model

[References]

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Kane C, Revankar ST, Int. J. Hydrog. Energy, 33(21), 5996 (2008)
Yoon HJ, Kim SJ, No HC, Lee BJ, Kim ES, Int. J. Hydrog. Energy, 33(20), 5469 (2008)
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Wuster G, PhD Thesis, RWTH Aachen, June (1979)
Engels H, Knoche KF, Int. J. Hydrogen Energy, 11, 703 (1986)
O’Keefe DR, Norman JH, J. Chem. Eng. Data, 27, 77 (1982)
Larousse B, Lovera P, Borgard JM, Roehrich G, Mokrani N, Maillault C, Doizi D, Dauvois V, Roujou JL, Lorin V, Fauvet P, Carles P, Hartmann JM, Int. J. Hydrog. Energy, 34(8), 3258 (2009)
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[1] Hadj-Kali MK, Gerbaud V, Borgard JM, Baudouin O, Floquet P, Joulia X, Carles P, Int. J. Hydrog. Energy, 34(4), 1696 (2009)

[2] Murphy JE, O'Connell JP, Int. J. Hydrog. Energy, 37(5), 4002 (2012)

[3] Guo HF, Zhang P, Chen SZ, Wang LJ, Xu JM, Int. J. Hydrog. Energy, 36(16), 9505 (2011)

[4] Murphy JE, O'Connell JP, Fluid Phase Equilib., 288(1-2), 99 (2010)

[5] Jana AK, Chemical Process Modelling and Computer Simulation, 2nd ed., Prentice-Hall, New Delhi (2011)

[6] Engels H, Chemistry Data Series, vol. XI, part I, Published by DECHEMA (1990)

[7] Neumann D, Phasengleichgewichte von HI/H2O/I2-Losungen, Thesis, Lehrstuhl fur Thrmodynmik, RWTH Aachen, 5100 Aachen, Germany (1987)

[8] Belaissaoui B, Thery R, Meyer XM, Meyer M, Gerbaud V, Joulia X, Chem. Eng. Process., 47(3), 396 (2008)

[9] Goldstein S, Borgard JM, Vitart X, Int. J. Hydrog. Energy, 30(6), 619 (2005)

[10] Kane C, Revankar ST, Int. J. Hydrog. Energy, 33(21), 5996 (2008)

[11] Yoon HJ, Kim SJ, No HC, Lee BJ, Kim ES, Int. J. Hydrog. Energy, 33(20), 5469 (2008)

[12] Poling BE, Prausnitz JM, O’Connell JP, The Properties of Gases and Liquids, 5th ed., McGraw-Hill, New York (2000)

[13] Wuster G, PhD Thesis, RWTH Aachen, June (1979)

[14] Engels H, Knoche KF, Int. J. Hydrogen Energy, 11, 703 (1986)

[15] O’Keefe DR, Norman JH, J. Chem. Eng. Data, 27, 77 (1982)

[16] Larousse B, Lovera P, Borgard JM, Roehrich G, Mokrani N, Maillault C, Doizi D, Dauvois V, Roujou JL, Lorin V, Fauvet P, Carles P, Hartmann JM, Int. J. Hydrog. Energy, 34(8), 3258 (2009)

[17] Hodotsuka M, Yang XY, Okuda H, Onuki K, J. Chem. Eng. Data, 53(8), 1683 (2008)