典型文献
Role of different types of water in bentonite clay on hydrate formation and decomposition
文献摘要：
The equilibrium and kinetic of hydrate in sediments can be affected by the presence of external compo-nents like bentonite with a relatively large surface area.To investigate the hydrate formation and decom-position behaviors in bentonite clay,the experiments of methane hydrate formation and decomposition using the multi-step decomposition method in bentonite with different water contents of 20％,40％and 60％(mass)were carried out.The contents of bound,capillary and gravity water in bentonite clay and their roles during hydrate formation and decomposition were analyzed.In bentonite with water content of 20％(mass),the hydrate formation rate keeps fast during the whole formation process,and the final gas consumption under different initial formation pressures is similar.In bentonite with the water contents of 40％and 60％(mass),the hydrate formation rate declines significantly at the later stage of the hydrate formation.The final gas consumption of bentonite with the water contents of 40％and 60％(mass)is sig-nificantly higher than that with the water content of 20％(mass).During the decomposition process,the stable pressure increases with the decrease of the water content.Hydrate mainly forms in free water in bentonite clay.In bentonite clay with the water contents of 20％and 40％(mass),the hydrate forms in capillary water.In bentonite clay with the water content of 60％(mass),the hydrate forms both in cap-illary water and gravity water.The bound water of dry bentonite clay is about 3.93％(mass)and the con-tent of capillary water ranges from 42.37％to 48.21％(mass)of the dry bentonite clay.
文献关键词：
中图分类号：
作者姓名：
Yu Zhang;Lei Zhang;Chang Chen;Hao-Peng Zeng;Xiao-Sen Li;Bo Yang
作者机构：
Key Laboratory of Gas Hydrate,Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou,Guangdong 510640,China;Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development,Guangzhou,Guangdong 510640,China;University of Chinese Academy of Sciences,Beijing 10083,China;Guangzhou Special Pressure Equipment Inspection and Research Institute,Guangzhou 510663,China
文献出处：
引用格式：
[1]Yu Zhang;Lei Zhang;Chang Chen;Hao-Peng Zeng;Xiao-Sen Li;Bo Yang-.Role of different types of water in bentonite clay on hydrate formation and decomposition)[J].中国化学工程学报（英文版）,2022(10):310-316
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B类：
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AB值：
0.3209
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