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Kinetic characteristics of methane hydrate formation under the synergistic effect of electric field and Hexadecyl trimethyl ammonium Bromide

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  • Li, Junhui
  • Shi, Lingli
  • He, Yong
  • Lu, Jingsheng
  • Long, Zhen
  • Liang, Deqing

Abstract

Exploring hydrate formation methods with high gas storage capacity and high formation rate will be of great significance to the large-scale application of hydrate storage and transportation technology. The synergistic promotion of electric field and surfactant is an effective solution. In this work, the effects of sinusoidal alternating electric field and surfactant Hexadecyl trimethyl ammonium Bromide (CTAB) on the kinetics of methane hydrate generation were investigated. Methane hydrate formation kinetics experiments were conducted at different CTAB concentrations (0, 200, 500, 800 ppm) and voltages (0, 100, 500, 1000, 1500, 2000V) under the condition of 7 MPa and 275.15 K. The results showed that the synergistic effect of electric field and CTAB could effectively shorten the induction time of methane hydrate formation, greatly increase the formation rate, and improve the mobility of the generated hydrate. The downside was a slight decrease in gas storage capacity. A series of microscopic tests demonstrated that the introduction of electric field and CTAB did not change the crystal type of methane hydrate. This study was expected to provide new insights for rapid preparation of hydrates.

Suggested Citation

  • Li, Junhui & Shi, Lingli & He, Yong & Lu, Jingsheng & Long, Zhen & Liang, Deqing, 2023. "Kinetic characteristics of methane hydrate formation under the synergistic effect of electric field and Hexadecyl trimethyl ammonium Bromide," Energy, Elsevier, vol. 283(C).
    • Handle: RePEc:eee:energy:v:283:y:2023:i:c:s0360544223025550
    DOI: 10.1016/j.energy.2023.129161
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