Determination of thermodynamic equilibrium conditions of ethane and propane gas hydrates using a direct and fast empirical method

Subject Areas :

Akbar Irandoukht ¹ ( Assistand Prof. of Chemical Engineering, Research Institute of Petroleum Industry, Tehran, Iran. )
hosein Brijanian ² ( Instructor of Chemical Engineering, Research Institute of Petroleum Industry, Tehran, Iran. )

Received: 2022-08-16 Accepted : 2022-11-28 Published : 2022-11-22

Keywords: Ethane Gas Hydrate, Propane Gas Hydrate, Three- Phase Equilibrium, Hydrate formation equilibrium conditions,

Abstract :

In this article, a direct and fast method was developed for determination of thermodynamic equilibrium conditions. The thermodynamic equilibrium pressure for ethane hydrate formation at 2, 4, 6, 8, 10, 12, and 14 °C and for propane hydrate formation at 2, 4 and 5 °C were experimentally determined. Comparison of the obtained data for ethane hydrate pressure to that of Deaton-Frost and also to those predicted by AQUAlibrium software showed the average absolute deviation percent of 4.56, 4.79, and 3.27, respectively. In addition, comparison of the obtained data for propane hydrae pressure to that of Deaton-Frost and HWU software, showed the average absolute deviation percent of 10.17, and 13.31, respectively.

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