A Thermodynamic Study of Methane Hydrates Formation In Glass Beads


Tintin Mutiara(1*), Budhijanto Budhijanto(2), I Made Bendiyasa(3), Imam Prasetyo(4)

(1) Department of Chemical Engineering, Gadjah Mada University, Jl. Grafika No.2, Yogyakarta, Indonesia 55281; Department of Chemical Engineering, Islamic University of Indonesia, Jl. Kaliurang km.14.5 Yogyakarta, Indonesia 55584
(2) Department of Chemical Engineering, Gadjah Mada University, Jl. Grafika No.2, Yogyakarta, Indonesia 55281
(3) Department of Chemical Engineering, Gadjah Mada University, Jl. Grafika No.2, Yogyakarta, Indonesia 55281
(4) Department of Chemical Engineering, Gadjah Mada University, Jl. Grafika No.2, Yogyakarta, Indonesia 55281
(*) Corresponding Author


Natural gas hydrates are non-stoichiometry compounds, in which the molecules of gas are trapped in crystalline cells consisting of water molecules retained by energy of hydrogen bonds. The experiments of Methane hydrate formation are performed at constant temperature in a reactor filled with various sizes of glass beads and water. Methane gas was fed into the reactor at various initial pressures. Equilibrium condition was reached when the system pressure did not change. The experimental results showed that the size of the glass beads gave very small effect on the equilibrium pressure of methane hydrate formation, so the effect could be neglected. In this study, the equation of Langmuir constant was Ci,CH4=(1/RT)exp[A+(B/T)] with the values of A and B for small cages were 6.8465 and 18.0342. The values of A and B for large cages were 7.7598 and 18.0361


equilibrium, thermodynamic, methane hydrates, glass beads

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DOI: https://doi.org/10.22146/ajche.49670

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ASEAN Journal of Chemical Engineering  (print ISSN 1655-4418; online ISSN 2655-5409) is published by Chemical Engineering Department, Faculty of Engineering, Universitas Gadjah Mada.