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水合物在硅胶中形成过程实验研究

发表时间:2009-06-30  浏览量:1632  下载量:625
全部作者: 孙志高,江承明,谢诺琳
作者单位: 苏州科技学院环境科学与工程学院;中山大学工学院
摘 要: 自然界中的天然气水合物资源主要存在于海洋中,而且总是伴随着多孔沉积物存在。在建立多孔介质水合物实验研究系统的基础上,以平均孔径为8.3 nm的硅胶作为水合物形成载体,研究了甲烷水合物的形成过程。实验结果表明:多孔硅胶虽然使甲烷水合物的形成压力(相平衡压力)升高,但水合物晶核容易形成,引导时间大幅度降低,多孔介质中的水合物生长过程分为2个速度明显不同的阶段。
关 键 词: 一次能源;水合物;甲烷;晶体生长;硅胶
Title: Experimental study on hydrate formation process in silica gel
Author: SUN Zhigao, JIANG Chengming, XIE Nuolin
Organization: School of Environmental Science and Engineering, Suzhou University of Science and Technology;School of Engineering, Sun Yat-Sen University
Abstract: Natural gas hydrate in nature mainly exists in sea floor. Natural gas hydrate always forms in porous sediment. A rig for the study of hydrate formation in porous media was set up. Methane hydrate formation process in porous silica gel was studied, using silica gel with average pore diameter 8.3 nm as carrier. The experimental results showed that the formation pressure (equilibrium pressure) of methane hydrate increased, but hydrate nucleation happened easily and induction time decreased greatly. Methane hydrate formation in porous silica gel included two stages where the formation speeds of methane hydrate were obviously different.
Key words: primary energy; hydrate; methane; crystal growth; porous silica gel
发表期数: 2009年6月第12期
引用格式: 孙志高,江承明,谢诺琳. 水合物在硅胶中形成过程实验研究[J]. 中国科技论文在线精品论文,2009,2(12):1239-1241.
 
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