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膨润土中甲烷水合物生成特性的实验研究
Alternative TitleExperimental Study of Methane Hydrate Formation in Bentonite
陈龙1,2,3,4,5; 张郁1,2,3,4; 李小森1,2,3,4; 陈朝阳1,2,3,4; 李刚1,2,3,4
2017-04
Source Publication新能源进展
ISSN2095-560X
Volume5Issue:2Pages:104-109
Abstract恒容条件下,实验研究了甲烷水合物在膨润土中的生成规律,考察了不同水浴温度(3℃、5℃、7℃和9℃)和不同初始压力(9MPa、12MPa和15MPa)对甲烷水合物生成规律的影响。研究表明:水合物在膨润土中生成的诱导时间很短,生成速度快,初始压力为12MPa、水浴温度为3℃时,诱导时间最短为16.5min;当系统温度降低到设置温度时,水合物基本停止生成,水合物的生成受到传质过程控制;水合物停止生成后,最终压力均明显高于纯水体系甲烷水合物相平衡压力。水的最终转化率介于55.73%和61.93%之间,水的最终转化率随着水浴温度降低而增大,但是增大的幅度并不显著。
Other AbstractThe formation behaviors of methane hydrate in bentonite were experimentally studied.The experiments werecarried out under conditions of bath temperatures of3oC,5oC,7oC and9oC,and initial pressures of9MPa,12MPa and15MPa.The experimental results indicate that the induction time of methane hydrate formation is very short and the methanehydrate formation rate is very fast.When the initial pressure is12MPa and the bath temperature is3oC,the induction timeis16.5min and it’s shorter than that of other experiments.When the temperature of the system is lower than the settingtemperature,the hydrate formation halted.The hydrate formation is controlled by the process of mass transfer.After thehydrate stops forming,the final pressure is significantly higher than the phase equilibrium pressure of bulk hydrate.Thefinal conversion of water ranges between55.73%and61.93%.The final water conversion decreases with the increase ofbath temperature,but lower bath temperature have no significant help to enhance the final conversion of water.
Keyword膨润土 转化率 甲烷水合物 传质过程 生成特性 bentonite conversion methane hydrate the process of mass transfer formation behavior
DOI10.3969/j.issn.2095-560X.2017.02.04
Language中文
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16643
Collection中国科学院广州能源研究所
Corresponding Author李小森
Affiliation1.中国科学院广州能源研究所,广州510640;
2.中国科学院天然气水合物重点实验室,广州510640;
3.广东省新能源和可再生能源研究开发与应用重点实验室,广州510640;
4.中国科学院广州天然气水合物研究中心,广州510640;
5.中国科学院大学,北京100049
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
陈龙,张郁,李小森,等. 膨润土中甲烷水合物生成特性的实验研究[J]. 新能源进展,2017,5(2):104-109.
APA 陈龙,张郁,李小森,陈朝阳,&李刚.(2017).膨润土中甲烷水合物生成特性的实验研究.新能源进展,5(2),104-109.
MLA 陈龙,et al."膨润土中甲烷水合物生成特性的实验研究".新能源进展 5.2(2017):104-109.
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