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多孔介质中甲烷水合物的分解特性
Alternative TitleDissociation Behavior of Methane Hydrate in Porous Media
Zhang Yu (张郁); Wu Hui-Jie (吴慧杰); Li Xiao-Sen (李小森); Chen Zhao-Yang (陈朝阳); Li Gang (李刚); Zeng Zhi-Yong (曾志勇)
2010-09-10
Source PublicationCHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
ISSN0251-0790
Volume31Issue:9Pages:7,1848-1854
Contribution Rank[Zhang Yu (张郁); Wu Hui-Jie (吴慧杰); Li Xiao-Sen (李小森); Chen Zhao-Yang (陈朝阳); Li Gang (李刚); Zeng Zhi-Yong (曾志勇)] Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
Corresponding AuthorLi, XS (reprint author), Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Key Lab Renewable Energy & Gas Hydrate, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China.
Other AbstractThe dissociation behavior of methane hydrate in the porous media were studied when the temperature was above the quadruple phase[Hydrate(H)-Water(L(W))-Ice(I)-Vapor(V)] point temperature. The silica gels were applied as the porous media for the experiments, in which the diameter ranges of the silica gel particles were 0. 105-0. 150, 0. 150-0. 200 and 0. 300-0. 450 mm, and the mean pore diameters, 9. 03, 12. 95, 17. 96 and 33. 20 nm, respectively. The dissociation experiments were carried out by depressurization in the temperature range of 269. 15-278. 15 K and the initial formation pressure range of 4. 1-11. 0 MPa. The experiments indicated that the dissociation rate of methane increases with the increase of the initial formation pressure, the decrease of the bath temperature, the decrease of the particle range and the increase of the mean pore diameter. For relative big the particle diameter, the water in some pores becomes ice in the dissociation process, which makes the dissociation process relatively slow.
利用定容降压方法测定了在不同多孔介质中甲烷水合物的分解实验数据,所使用的多孔介质平均孔径分别为9.03,12.95,17.96和33.20nm,其中孔径为12.95nm的多孔介质采用了3个粒径范围,分别为0.105~0.150,0.150~0.200和0.300~0.450mm;其它孔径的多孔介质的粒径范围为0.105~0.150mm.在封闭的条件下测定了不同温度与不同初始生成压力下甲烷水合物的分解实验数据(实验温度范围为269.15~278.15K,初始生成压力范围为4.1~11.0MPa),结果表明,水合物的分解速度随着初始生成压力的增加和水浴温度的降低而升高,也随孔径的增加而升高,但随多孔介质粒径的增大而降低.在孔径较大和分解温度较低时,多孔介质中水合物分解引起的温度降低会使水结冰,从而减缓水合物的分解速度.
KeywordMethane Hydrate Dissociation Porous Media Carbon-dioxide Natural-gas Intrinsic Rate Decomposition Energy Ethane Equilibria Constant Mixtures Sediment 甲烷水合物 分解特性 多孔介质
Subject AreaChemistry
Indexed BySCI ; CSCD
Language中文
Funding Organization国家自然科学基金(20773133 50874098); 中科院知识创新工程重要方向项目(KGCX2-YW-3X6) 中科院重大科研装备项目(YZ200717); 广东省科技计划项目(2009B050600006); 国家“八六三”计划项目(2006AA09A209); 国家“九七三”计划项目(2009CB219507)
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Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/8525
Collection中国科学院广州能源研究所
天然气水合物开采技术与综合利用实验室
Recommended Citation
GB/T 7714
Zhang Yu (张郁),Wu Hui-Jie (吴慧杰),Li Xiao-Sen (李小森),等. 多孔介质中甲烷水合物的分解特性[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2010,31(9):7,1848-1854.
APA Zhang Yu ,Wu Hui-Jie ,Li Xiao-Sen ,Chen Zhao-Yang ,Li Gang ,&Zeng Zhi-Yong .(2010).多孔介质中甲烷水合物的分解特性.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,31(9),7,1848-1854.
MLA Zhang Yu ,et al."多孔介质中甲烷水合物的分解特性".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 31.9(2010):7,1848-1854.
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