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Enhanced CO2 hydrate formation using hydrogen-rich stones, L-Methionine and SDS: Insights from kinetic and morphological studies

Author

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  • Xu, Huazheng
  • Liu, Yingying
  • He, Siyuan
  • Zheng, Jia-nan
  • Jiang, Lanlan
  • Song, Yongchen

Abstract

One promising proposal for CO2 capture and storage is based on hydrate technology, which grapples with challenges related to stringent formation conditions and slow formation rates. In this study, the induction time, gas uptake and the rate of CO2 hydrate formation were measured with varying concentrations (ranging from 0.05 wt% to 0.2 wt%) of L-Methionine (L-Met) and sodium dodecyl sulfate (SDS). Remarkably, the novel additive hydrogen-rich stone significantly reduced the induction time by 89.74 % and 85.16 %, even under static conditions. The morphology analysis reveals that L-Met foster the creeping growth of hydrates, resulting in an approximate 41.89 % increase in the initial 1 h gas uptake. The efficient heat diffusion further enables the rapid formation of hydrates, resulting in a high gas uptake in a short period. L-Met outperforms SDS in terms of induction time and gas uptake, with the optimal choice for CO2 hydrate formation being 0.1 wt% L-Met. This study briefly describes the mechanisms of three different kinetic promoters for hydrate formation, which provides new ideas for subsequent studies on CO2 capture and storage via hydrate technology.

Suggested Citation

  • Xu, Huazheng & Liu, Yingying & He, Siyuan & Zheng, Jia-nan & Jiang, Lanlan & Song, Yongchen, 2024. "Enhanced CO2 hydrate formation using hydrogen-rich stones, L-Methionine and SDS: Insights from kinetic and morphological studies," Energy, Elsevier, vol. 291(C).
  • Handle: RePEc:eee:energy:v:291:y:2024:i:c:s0360544224000513
    DOI: 10.1016/j.energy.2024.130280
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    Cited by:

    1. Zhou, Shi-Dong & Xiao, Yan-Yun & Ni, Xing-Ya & Li, Xiao-Yan & Wu, Zhi-Min & Liu, Yang & Lv, Xiao-Fang, 2024. "Kinetics studies of CO2 hydrate formation in the presence of l-methionine coupled with multi-walled carbon nanotubes," Energy, Elsevier, vol. 298(C).

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