Energy Storage Science and Technology ›› 2015, Vol. 4 ›› Issue (2): 131-140.doi: 10.3969/j.issn.2095-4239.2015.02.002

• Research &development • Previous Articles     Next Articles

Current status of energy storage using hydrates

CHEN Jun1, 2, CHEN Qiuxiong1, CHEN Yunwen1, FAN Shuanshi2, WANG Yanhong2, YANG Liang2, LANG Xuemei2, ZHANG Wenxiang2, HUANG Yi2, XIONG Wentao2, WEN Yonggang1   

  1. 1 Shenzhen Gas Corporation Ltd.,Shenzhen 518040,Guangdong,China;
    2 Key Lab of Enhanced Heat Transfer and Energy Conservation,Ministry of Education,School of Chemistry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2014-10-31 Online:2015-04-19 Published:2015-04-19

Abstract: Hydrate is a solid material formed by guest molecules and host water molecules under certain temperature and pressure. The water molecules are able to form a clathrate structure through hydrogen bonds. The clathrate structure can entrap gases such as CH4 and H2 to form a stable solid material, thus achieving the storage of energy. In the same time, the formation and dissociation of hydrates incurs heat release (exothermic process) and heat absorption (endothermic process), respectively. These characteristics could make them feasible materials for storing thermal energy. In this paper, current status of the use hydrates for energy storage is discussed and future research needs are proposed.

Key words: hydrate, natural gas storage and transportation, hydrogen storage, cold storage

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