SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (9): 2014-2025.DOI: 10.1016/j.cjche.2018.12.016

Previous Articles     Next Articles

Fundamental mechanisms and phenomena of clathrate hydrate nucleation

Jinlong Cui1, Zhenfeng Sun1, Xiaohui Wang1, Bin Yu2, Shudong Leng2, Guangjin Chen1, Changyu Sun1   

  1. 1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;
    2 China Ship Design & Research Center Co., Ltd., Dalian 116001, China
  • Received:2018-09-19 Revised:2018-11-08 Online:2019-12-04 Published:2019-09-28
  • Contact: Xiaohui Wang, Changyu Sun
  • Supported by:
    Supported by the National Key Research and Development Program of China (2016YFC0304003, 2017YFC0307302), the National Natural Science Foundation of China (21636009, 51576209, 21522609), and the Innovative Talents Support Program for Postgraduates (BX201700288).

Fundamental mechanisms and phenomena of clathrate hydrate nucleation

Jinlong Cui1, Zhenfeng Sun1, Xiaohui Wang1, Bin Yu2, Shudong Leng2, Guangjin Chen1, Changyu Sun1   

  1. 1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China;
    2 China Ship Design & Research Center Co., Ltd., Dalian 116001, China
  • 通讯作者: Xiaohui Wang, Changyu Sun
  • 基金资助:
    Supported by the National Key Research and Development Program of China (2016YFC0304003, 2017YFC0307302), the National Natural Science Foundation of China (21636009, 51576209, 21522609), and the Innovative Talents Support Program for Postgraduates (BX201700288).

Abstract: Insights into the mechanism of hydrate nucleation are of great significance for the development of hydrate-based technologies, hydrate relevant flow assurance, and the exploration of in situ natural gas hydrates. Compared with the thermodynamics of hydrate formation, understanding the nucleation mechanism is challenging and has drawn substantial attention in recent decades. In this paper, we attempt to give a comprehensive review of the recent progress of studies of clathrate hydrate nucleation. First, the existing hypotheses on the hydrate nucleation mechanism are introduced and discussed. Then, we summarize recent experimental studies on induction time, a key parameter evaluating the velocity of the nucleation process. Subsequently, the memory effect is particularly discussed, followed by the suggestion of several promising research perspectives.

Key words: Hydrate, Nucleation, Mechanism, Induction time, Memory effect

摘要: Insights into the mechanism of hydrate nucleation are of great significance for the development of hydrate-based technologies, hydrate relevant flow assurance, and the exploration of in situ natural gas hydrates. Compared with the thermodynamics of hydrate formation, understanding the nucleation mechanism is challenging and has drawn substantial attention in recent decades. In this paper, we attempt to give a comprehensive review of the recent progress of studies of clathrate hydrate nucleation. First, the existing hypotheses on the hydrate nucleation mechanism are introduced and discussed. Then, we summarize recent experimental studies on induction time, a key parameter evaluating the velocity of the nucleation process. Subsequently, the memory effect is particularly discussed, followed by the suggestion of several promising research perspectives.

关键词: Hydrate, Nucleation, Mechanism, Induction time, Memory effect