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Effect of microwave on formation/decomposition of natural gas hydrate
Liang DeQing1; He Song1,2; Li DongLiang1
2009-03-01
发表期刊CHINESE SCIENCE BULLETIN
ISSN1001-6538
卷号54期号:6页码:965-971
通讯作者liangdq@ms.giec.ac.cn
摘要Natural gas hydrate (NGH) reservoirs have been considered as a substantial future clean energy resource and how to recover gas from these reservoirs feasibly and economically is very important. Microwave heating will be taken as a promising method for gas production from gas hydrates for its advantages of fast heat transfer and flexible application. In this work, we investigate the formation/decomposition behavior of natural gas hydrate with different power of microwave (2450MHZ), preliminarily analyze the impact of microwave on phase equilibrium of gas hydrate,and make calculation based on van der Waals-Platteeuw model. It is found that microwave of a certain amount of power can reduce the induction time and sub-cooling degree of NGH formation, e.g., 20W microwave power can lead to a decrease of about 3A degrees C in sub-cooling degree and the shortening of induction time from 4.5 hours to 1.3 hours. Microwave can make rapid NGH decomposition, and water from NGH decomposition accelerates the decomposition of NGH with the decomposition of NGH. Under the same pressure, microwave can increase NGH phase equilibrium temperature. Different dielectric properties of each composition of NGH may cause a distinct difference in temperature in the process of NGH decomposition. Therefore, NGH decomposition by microwave can be affected by many factors.
文章类型Article
其他摘要Natural gas hydrate (NGH) reservoirs have been considered as a substantial future clean energy resource and how to recover gas from these reservoirs feasibly and economically is very important. Microwave heating will be taken as a promising method for gas production from gas hydrates for its advantages of fast heat transfer and flexible application. In this work, we investigate the formation/decomposition behavior of natural gas hydrate with different power of microwave (2450MHZ), preliminarily analyze the impact of microwave on phase equilibrium of gas hydrate,and make calculation based on van der Waals-Platteeuw model. It is found that microwave of a certain amount of power can reduce the induction time and sub-cooling degree of NGH formation, e.g., 20W microwave power can lead to a decrease of about 3A degrees C in sub-cooling degree and the shortening of induction time from 4.5 hours to 1.3 hours. Microwave can make rapid NGH decomposition, and water from NGH decomposition accelerates the decomposition of NGH with the decomposition of NGH. Under the same pressure, microwave can increase NGH phase equilibrium temperature. Different dielectric properties of each composition of NGH may cause a distinct difference in temperature in the process of NGH decomposition. Therefore, NGH decomposition by microwave can be affected by many factors.
关键词Natural Gas Hydrate Microwave Formation/decomposition
WOS标题词Science & Technology
DOI10.1007/s11434-009-0116-4
研究领域[WOS]Science & Technology - Other Topics
URL查看原文
关键词[WOS]METHANE
收录类别SCI
语种英语
项目资助者National Natural Science Foundation of China [50676097]; State Key Development Program for Basic Research of China [2009CB219500]
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000264174900008
引用统计
被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/3362
专题中国科学院广州能源研究所
作者单位1.Guangzhou Inst Energy Convers, Key Lab Renewable Energy & Gas Hydrate, CAS, Guangzhou 510640, Peoples R China
2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714
Liang DeQing,He Song,Li DongLiang. Effect of microwave on formation/decomposition of natural gas hydrate[J]. CHINESE SCIENCE BULLETIN,2009,54(6):965-971.
APA Liang DeQing,He Song,&Li DongLiang.(2009).Effect of microwave on formation/decomposition of natural gas hydrate.CHINESE SCIENCE BULLETIN,54(6),965-971.
MLA Liang DeQing,et al."Effect of microwave on formation/decomposition of natural gas hydrate".CHINESE SCIENCE BULLETIN 54.6(2009):965-971.
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