Acta Phys. -Chim. Sin. ›› 2009, Vol. 25 ›› Issue (06): 1047-1052.doi: 10.3866/PKU.WHXB20090607

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

ZANG Xiao-Ya, LIANG De-Qing, LIANG De-Qing, FAN Shuan-Shi, TANG Cui-Ping   

  1. 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
  • Received:2009-01-09 Revised:2009-03-02 Published:2009-06-05
  • Contact: LIANG De-Qing E-mail:liangdq@ms.giec.ac.cn

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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.

Key words: 5A-type zeolite, Tetrahydrofuran hydrate, Formation, Dissociation