CO2 rich gas mixture hydrate-liquid water- vapor (H-Lw-V) equilibrium measurement and prediction

In this paper we present experimental hydrate-liquid water vapor equilibrium data for mixtures of gas comprising rich CO2 content. Data were generated by a reliable step-heating technique validated using measured data for CH4. The experimental results obtained in this measurement were compared with various commercial softwares (CSMGem, CSMHYD). The prediction results obtained with different software packages shows in weak agreement with experiment data point with high average absolute error (AAE) of 1.18 and 1.45 for hydrate equilibrium pressure condition while with model used in this work the average absolute error obtained is 0.01 respectively. © 2014 Trans Tech Publications, Switzerland.