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

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(06): 1047-1052. doi: 10.3866/PKU.WHXB20090607 shu

Citation: ZANG Xiao-Ya, LIANG De-Qing, 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(06): 1047-1052. doi: 10.3866/PKU.WHXB20090607 shu

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

通讯作者: ,

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.

关键词:

English

Influence of 5A-Type Zeolite Powder on Tetrahydrofuran Hydrate Formation and Dissociation Process

1.
Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China

Corresponding author: TANG Cui-Ping,

Received Date: 09 January 2009
Available Online: 05 June 2009

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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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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

通讯作者: ,

English

Influence of 5A-Type Zeolite Powder on Tetrahydrofuran Hydrate Formation and Dissociation Process

Corresponding author: TANG Cui-Ping,

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

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

通讯作者: ,

English

Influence of 5A-Type Zeolite Powder on Tetrahydrofuran Hydrate Formation and Dissociation Process

Corresponding author: TANG Cui-Ping,

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

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CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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