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| Gas hydrate fast nucleation from melting ice and quiescent growth along vertical heat transfer tube | |
| 作者姓名： | XIE Yingming GUO Kaihua LIANG Deqing FAN Shuanshi GU Jianming & CHEN Jinggui . Institute of Refrigeration and Cryogenics Shanghai Jiaotong University Shanghai China . Guangzhou Institute of Energy Conversion The Chinese Academy of Sciences Guangzhou China |
| 作者单位： | XIE Yingming1，2，GUO Kaihua2，LIANG Deqing2，FAN Shuanshi2，GU Jianming1 & CHEN Jinggui2 1. Institute of Refrigeration and Cryogenics，Shanghai Jiaotong University，Shanghai 200030，China; 2. Guangzhou Institute of Energy Conversion，The Chinese Academy of Sciences，Guangzhou 510640，China |
| 基金项目： | 广东省自然科学基金，国家重点基础研究发展计划(973计划) |
| 摘 要： | Gas hydrates, or clathrate hydrates, are ice-likecrystal, composed of host lattice (cavities) formed byhydrogen-bonded water molecules, and other guestmolecules called guest molecules. The guest mole-cules act with host lattice in weak van der Waals force… |
Gas hydrate fast nucleation from melting ice and quiescent growth along vertical heat transfer tube |
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| XIE Yingming,,GUO Kaihua,LIANG Deqing,FAN Shuanshi,GU Jianming & CHEN Jinggui . Institute of Refrigeration and Cryogenics,Shanghai Jiaotong University,Shanghai ,China, . Guangzhou Institute of Energy Conversion,The Chinese Academy of Sciences,Guangzhou ,China.Gas hydrate fast nucleation from melting ice and quiescent growth along vertical heat transfer tube[J].Science in China(Chemistry),2005,48(1):75-82. | |
| Authors: | Xie Yingming Guo Kaihua Liang Deqing Fan Shuanshi Gu Jianming CHEN Jinggui |
| Institution: | 1. Institute of Refrigeration and Cryogenics, Shanghai Jiaotong University, Shanghai 200030, China;Guangzhou Institute of Energy Conversion, The Chinese Academy of Sciences, Guangzhou 510640, China 2. Guangzhou Institute of Energy Conversion, The Chinese Academy of Sciences, Guangzhou 510640, China 3. Institute of Refrigeration and Cryogenics, Shanghai Jiaotong University, Shanghai 200030, China |
| Abstract: | During the observation of HCFC141b gas hydrate growth processes outside a vertical heat transfer tube, two exciting phenomena were found: fast nucleation of gas hydrate from melting ice, and the spontaneous permeation of water into the guest phases along the surface of heat transfer tube to form gas hydrate continuously. These two phenomena were explained with Zhou & Sloan’s hypothesis and the theory of surface free energy respectively, and a novel method of gas hydrate formation was presented—gas hydrate fast nucleation from melting ice and quiescent growth along heat transfer tube. There is no mechanic stirring in this method, the formed gas hydrates are compact, the ratio of unreacted interstitial water is little, which overcome the drawback of high energy cost and high ratio of unreacted interstitial water among the formed gas hydrates in the system with mechanic stirring. This finding will benefit the gas hydrate application technologies such as natural gas storage technology or cool storage technology with gas hydrate. |
| Keywords: | gas hydrate natural gas storage cool storage fast nucleation from melting ice permeation surface free energy |
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