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《Journal of Chemical Industry and Engineering(China)》 2002-09
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KINETICS OF METHANE HYDRATE DECOMPOSITION

SUN Changyu,CHEN Guangjin and GUO Tianmin LIN Wanchen and CHEN Jiang (Research Laboratory of High Pressure Fluid Phase Behavior? (Jilin Oil Field Company Research Institute of Exploration and and Property,University of Petroleum,Beij  
The kinetics of methane hydrate decomposition was studied using Sapphire cell apparatus. Two different ways were adopted to measure the kinetic data of methane hydrate decomposition at temperatures from 269-279?K and pressures from 0.1-3.0?MPa.It was revealed that the decomposition rate of methane hydrate was proportional to the difference between gas fugacity at the equilibrium state and that at the actual decomposing state.A new kinetic model for methane hydrate decomposition was developed. It was shown that calculated results by the model were in good agreement with experimental data.The activation energy of decomposition reaction for methane hydrate was determined as 73.3?kJ·mol -1(methane).
【Fund】: 国家自然科学基金资助项目 (No .2 980 6 0 0 9)~~
【CateGory Index】: O643.1
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