Phase equilibrium modeling of clathrate hydrates of methane, carbon dioxide, nitrogen, and hydrogen + water soluble organic promoters using Support Vector Machine algorithm

Ali Eslamimanesh (1) , Farhad Gharagheizi (2) , Mohammad Illbeigi (3) , Amir H. Mohammadi (1) , Alireza Fazlali (3) , Dominique Richon (1)

1 CEP/Fontainebleau
2 Saman Energy Giti Co.
3 Chemical Engineering Department

In this work, the Least Squares Support Vector Machine (LSSVM) algorithm is employed to present several numerical models for calculation/estimation of the clathrate hydrate dissociation conditions of methane, carbon dioxide, nitrogen, and hydrogen in the presence of 3 most-widely used water "soluble" organic promoters including tetrahydrofuran (THF), 1,4-dioxane, and acetone. The Hybrid Genetic Algorithm (H-GA) is applied to obtain the optimal models parameters. The final results indicate the accuracy and reliability of the proposed models with the absolute average relative deviations (AARD) of generally less than 10% and squared correlation coefficients of generally greater than 0.99. It was found that the models contribute to high deviations for the representations/predictions of the N2 + THF, CH4 + 1,4-dioxane, and H2 + acetone clathrate hydrates phase equilibria.

Mots clés: Clathrate hydrate; Water soluble promoters; Support Vector Machine; Reliable models; Phase equilibria; Numerical models

Domaines: Génie des procédés

Ali Eslamimanesh, Farhad Gharagheizi, Mohammad Illbeigi, Amir H. Mohammadi, Alireza Fazlali, et al.. Phase equilibrium modeling of clathrate hydrates of methane, carbon dioxide, nitrogen, and hydrogen + water soluble organic promoters using Support Vector Machine algorithm. Fluid Phase Equilibria, 2011, 316 (25), pp.34-45. ⟨10.1016/j.fluid.2011.11.029⟩. ⟨hal-00668289⟩