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Investigation on the Suitability of Natural Gas Hydrate Formation Prediction Simulation Packages and its Implementation Conditions

Firas Basim Ismail Alnaimi, Henry Chee Liang Lim, Amar Sahed, Hikmat S. Al Salim and Mohammad Shakir Nasif

Pertanika Journal of Science & Technology, Volume 28, Issue S1, December 2020

Keywords: Hydrate equilibrium prediction, methane-carbon dioxide gas mixture, Peng-Robinson model

Published on: 16 September 2020

In natural gas processing, carbon dioxide is one of the major streams contaminate from the gas reservoir and must be removed, as it reduces the energy content of sales gas. In order to remove huge amounts of carbon dioxide (CO2), gas hydrate is used to capture CO2. However, the high formation of hydrate will inhibit clogs in gas pipelines. Hence, this research presents literature on hydrate formation, prediction of methane-carbon dioxide (CH4-CO2) gas mixture, by using simulation packages of Aspen Hysys 7.2, K-factor, VMG SIM Ver. 6 and BR & E ProMax 2.0. Peng-Robinson model was used in all simulation packages. Simulation results obtained were then compared with experimental data from previous literature sources. The simulation results showed that the higher the concentration of CO2 in CH4-CO2 gas mixture, the lower the pressure required for CO2 hydrate to form throughout the predicted temperature range from -20°C to 20°C.

ISSN 0128-7680

e-ISSN 2231-8526

Article ID

JST(S)-0545-2020

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