%0 Journal Article %J Journal of Chemical Thermodynamics %D 2013 %T Hydrate phase equilibrium of ternary gas mixtures containing carbon dioxide, hydrogen and propane %A Babu, Ponnivalavan %A Yang, Ting %A Veluswamy, Hari Prakash %A Kumar, Rajnish %A Linga, Praveen %K Carbon dioxide capture %K Gas hydrates %K Global warming %K Phase equilibrium %K Pre-combustion %K Thermodynamics %X

Hydrate phase equilibrium of the ternary guest mixtures containing carbon dioxide, hydrogen and propane at two different compositions were determined. Addition of mole composition of 2.5% propane to the fuel gas (CO2 (40%)/H-2 (60%)) mixture reduces the hydrate formation conditions by 66% at the temperature of 278.4 K. A Clausius-Clapeyron plot for the experimental results was plotted and from the slope, the enthalpy of hydrate dissociation was calculated. The enthalpy of dissociation of the mixed hydrate formed from a ternary gas mixture containing mole composition 38.1% CO2, 59.4% H-2 and 2.5% C3H8 was found to be 110 kJ.mol(-1) and hence it was concluded that the mixed hydrate formed structure II (sII) hydrates. Whereas for the ternary gas mixture containing mole composition 80.0% CO2, 18.8% H-2, and 1.2% C3H8, the enthalpy of dissociation of the mixed hydrate was found to be 78 kJ.mol(-1) and hence we believe the mixed hydrate formed structure I (sI) hydrate. (C) 2013 Elsevier Ltd. All rights reserved.

%B Journal of Chemical Thermodynamics %I ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD %C 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND %V 61 %P 58-63 %8 JUN %G eng %3 Foreign %4 2.423 %R 10.1016/j.jct.2013.02.003