4.7 Article

Exploring the tuning patterns of cyclopentyl amine hydrate for potential application to CH4 storage

出版社

ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2022.108402

关键词

Clathrate hydrate; Phase equilibria; Tuning effect; Eutectic composition; Gas storage

资金

  1. National Research Foundation of Korea (NRF) - Korea government (MSIT) [2020R1A2C2008619, 2021R1A5A1028138]
  2. POSTECH
  3. National Research Foundation of Korea [2020R1A2C2008619] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

向作者/读者索取更多资源

In this study, cyclopentyl amine (CPA) was introduced as a potential thermodynamic promoter for methane (CH4) storage. The results showed that CPA could form hydrate without the help of gas and work as a thermodynamic promoter for CH4. Tuning phenomena were observed below a certain concentration of CPA.
With the increasing demand on world energy consumption, natural gas has received attention as the near-term primary energy source that produces fewer CO2 emissions than other fossil fuels. Accordingly, developing ecofriendly gas storage and transport technology has remained a significant challenge. Gas hydrate is a crystalline inclusion compound formed by water molecules and has emerged as alternative option for natural gas storage. Despite the benefits of hydrates, relatively high pressure and low temperature formation conditions need to be mitigated for practical application. Here, we introduce cyclopentyl amine (CPA) as a new thermodynamic promoter for potential application for CH4 storage. We measured the synchrotron high-resolution powder diffraction and C-13 NMR spectra, and the results revealed that the CPA could form sII hydrate without help gas. We also measured the pressure - temperature phase equilibria of CPA + CH4 hydrate, and the results revealed that CPA works as a thermodynamic promoter for CH4. Further, the tuning phenomena were observed below the stoichiometric concentration of the CPA. Specifically, the tuning factor was obtained as similar to 0.34, which exhibited a critical guest concentration was 0.9 mol%. We believe that these findings provide better understanding of the tuning phenomena for potential application to CH4 storage media.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据