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Research status of strengthening methods for gas hydrate formation process

  • ZHAO Qi ,
  • CHEN Chao-Yang ,
  • XIA Zhi-Ming ,
  • ZHANG Yu ,
  • XU Chun-Gang ,
  • LI Xiao-Sen
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  • 1. Key Laboratory of Natural Gas Hydrate, Guangzhou Institute of Energy Research, Chinese Academy of Sciences, Guangzhou, Guangdong 510640, China

    2. Key Laboratory of New Energy and Renewable Energy Research Development and Application of Guangdong Province, Guangzhou, Guangdong 510640, China

    3. Guangzhou Center for Natural Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou, Guangdong 510640, China

    4. University of Chinese Academy of Sciences, Beijing 100049, China

    5. University of Science and Technology of China, Hefei, Anhui 230026, China

Received date: 2020-09-14

  Revised date: 2020-11-04

  Online published: 2021-09-28

Abstract

Based on the special physical and chemical properties of hydrate, as a new technology, method of gas hydrate is widely used in many fields, such as desalination, solid state storage and transportation of natural gas, gas separation, carbon dioxide capture and storage, etc. But due to the harsh conditions of hydrate formation, its formation rate and gas storage capacity are still far behind that of commercial applications, so special technical means are needed to reduce hydrate formation conditions and strengthen hydrate formation rate and gas storage capacity. In this work, the research status of strengthening methods for hydrate formation process is reviewed from three aspects: mechanical strengthening, outfield action and additives, and the development of technology in the future is prospected. From the point of view of the strengthening method, the mechanical strengthening technology is relatively mature, but the energy consumption required by mechanical stirring and the heat energy generated by the stirring process are both large, and increase geometrically with the increase of the device. The most extensive research on the reinforcement of additives, the effect is relatively ideal, but the reinforcement method of additives will inevitably bring new pollution to the system or products, not conducive to the actual promotion and application. There are few studies on field reinforcement, which are still in the experimental and even theoretical stage, and there is still a large space for development and improvement.

Cite this article

ZHAO Qi , CHEN Chao-Yang , XIA Zhi-Ming , ZHANG Yu , XU Chun-Gang , LI Xiao-Sen . Research status of strengthening methods for gas hydrate formation process[J]. The Chinese Journal of Process Engineering, 2021 , 21(9) : 993 -1002 . DOI: 10.12034/j.issn.1009-606X.220296

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