Institute of Petroleum Engineering

Centre for Gas Hydrate Research Publications



Abstract 023
The Kinetics of Structure-H Hydrate Formation, Experimental Data and Modelling
Tohidi, B., Danesh, A., Østergaard, K.K., and Todd, A.C.
The 2nd International Conference on Gas Hydrates, Toulouse, France, 2-6 June (1996).
The kinetic data on the structure-H gas hydrates formation and its modelling are reported for the first time in this paper. Seven series of tests have been performed for a system comprising of methane, methylcyclohexane, and water. The main objectives were to study the important factors in gas hydrate formation and to generated data for the validation of a kinetic model. The Skovborg and Rasmussen's approach, i.e., a mass transport limited model, has been used to model the growth of structure-H hydrates. The predictions are compared with experimental data with acceptable results. This study confirms the effect of water history and driving force on the induction time, and discusses the role of thermodynamic modelling of the hydrate phase boundary and gas solubility in the water rich phase on predicting the kinetics of hydrate formation.

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