| 5A分子筛粉末对四氢呋喃水合物的生成及分解过程的影响 |
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| 引用本文： | 臧小亚,梁德青,樊栓狮,唐翠萍.5A分子筛粉末对四氢呋喃水合物的生成及分解过程的影响[J].物理化学学报,2009,25(6):1047-1052. |
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| 作者姓名： | 臧小亚 梁德青 樊栓狮 唐翠萍 |
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| 作者单位： | Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China,Guangzhou Center for Gas Hydrate Research, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划) |
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| 摘 要： | 在低于0 ℃和常压下, 将粉碎并筛分后的成型5A分子筛粉末加入四氢呋喃-水(二者质量比为19:81)体系中, 用显微镜观察5A分子筛粉末的存在对四氢呋喃水合物生成和分解过程的影响. 结果表明, 5A分子筛粉末能够促进四氢呋喃水合物的生成. 5A分子筛粉末存在下, 四氢呋喃水合物生成方式主要表现为两种, 脉状生成和块状生成; 同时5A分子筛粉末能够提高四氢呋喃水合物结晶所需要的温度, 降低四氢呋喃水合物的分解温度; 而且5A分子筛粉末粒径的大小及分布对四氢呋喃水合物生成及分解的特性也有很大影响.
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| 关 键 词： | 5A分子筛 四氢呋喃水合物 生成 分解 |
| 收稿时间： | 2009-01-09 |
| 修稿时间： | 2009-03-02 |
Influence of 5A-Type Zeolite Powder on Tetrahydrofuran Hydrate Formation and Dissociation Process |
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| ZANG Xiao-Ya,LIANG De-Qing,FAN Shuan-Shi,TANG Cui-Ping.Influence of 5A-Type Zeolite Powder on Tetrahydrofuran Hydrate Formation and Dissociation Process[J].Acta Physico-Chimica Sinica,2009,25(6):1047-1052. |
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| Authors: | ZANG Xiao-Ya LIANG De-Qing FAN Shuan-Shi TANG Cui-Ping |
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| Institution: | Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China|Guangzhou Center for Gas Hydrate Research, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China |
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| Abstract: | Visual observations of tetrahydrofuran (THF) hydrate formation and dissociation processes with 5A-type zeolite powder were made at normal atmospheric conditions and below zero temperature by microscope. Results indicate that 5A-type zeolite powder can promote THF hydrate growth. At the same time, in the presence of 5A-type zeolite, agglomerated crystals and vein-like crystals of THF hydrate were also formed. 5A-type zeolite powder increases the crystallization temperature and decreases the dissociation temperature. The particle size distribution of 5A-type zeolite powder influences THF hydrate formation and its dissociation characteristics significantly. |
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| Keywords: | 5A-type zeolite Tetrahydrofuran hydrate Formation Dissociation |
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