Experimental study on the competition between carbon dioxide hydrate and ice below the freezing point | |
Li, Yan2,4,5; Gambelli, Alberto Maria3; Chen, Jiangzhi4; Yin, Zhenyuan5; Rossi, Federico3; Tronconi, Enrico1; Mei, Shenghua4 | |
刊名 | CHEMICAL ENGINEERING SCIENCE |
2023-03-15 | |
卷号 | 268页码:15 |
关键词 | Carbon dioxide hydrates Growth competition The freezing point Ice phase behavior |
ISSN号 | 0009-2509 |
DOI | 10.1016/j.ces.2022.118426 |
通讯作者 | Mei, Shenghua |
英文摘要 | As climate change and industrial requirements intensify, the potential of CO2 hydrates for carbon storage has attracted increasing attention. However, despite continuous progress, the subzero phase behavior of the CO2-H2O system is not well understood and merits further research. To investigate the competing and coexisting growth mechanisms of CO2 gas hydrate and ice below the quadruple point, we conducted experiments at both the micrometer-scale and mesoscale scales. The growth morphology of hydrate and ice at large and small subcooling temperatures was observed in situ in a high-pressure optical cell, and the thermodynamic behavior of the competitive process after hydrate formation was investigated in a high-pressure reactor with sands. When hydrates and ice are formed together at small subcooling temperatures, preferential hydrate formation leads to ice dissolution or even disappearance. At large subcooling temperatures, ice forms first, and the hydrate mainly forms a fibrous envelope. A small decrease in the subzero temperature after hydrate formation partially decomposes the hydrates owing to ice formation, followed by more rapid hydrate production. This study provides a thorough and expanded understanding of the competition between ice and hydrates by connecting the evolution of crystal frameworks with the thermodynamic features of the process. (c) 2022 Elsevier Ltd. All rights reserved. |
资助项目 | Chinese Academy of Sciences[QYZDY-SSW-DQC029] ; National Natural Science Foundation of China[41674097] |
WOS关键词 | NATURAL-GAS HYDRATE ; METHANE HYDRATE ; CLATHRATE HYDRATE ; ANOMALOUS PRESERVATION ; EQUILIBRIUM CONDITIONS ; DISSOCIATION BEHAVIOR ; PHASE-EQUILIBRIUM ; CRYSTAL-GROWTH ; CO2 ; WATER |
WOS研究方向 | Engineering |
语种 | 英语 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
WOS记录号 | WOS:000911469500001 |
资助机构 | Chinese Academy of Sciences ; National Natural Science Foundation of China |
内容类型 | 期刊论文 |
版本 | 出版稿 |
源URL | [http://ir.idsse.ac.cn/handle/183446/10121] |
专题 | 深海科学研究部_深海极端环境模拟研究实验室 |
通讯作者 | Mei, Shenghua |
作者单位 | 1.Polytech Univ Milan, Dept Energy, Lab Catalysis & Catalyt Proc, I-20156 Milan, Italy 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Perugia, Engn Dept, Via G Duranti 93, I-06125 Perugia, Italy 4.Chinese Acad Sci, Inst Deep Sea Sci & Engn, CAS Key Lab Expt Study Deep Sea Extreme Condit, Sanya 572000, Hainan, Peoples R China 5.Tsinghua Univ, Shenzhen Int Grad Sch, Inst Ocean Engn, Shenzhen 518055, Peoples R China |
推荐引用方式 GB/T 7714 | Li, Yan,Gambelli, Alberto Maria,Chen, Jiangzhi,et al. Experimental study on the competition between carbon dioxide hydrate and ice below the freezing point[J]. CHEMICAL ENGINEERING SCIENCE,2023,268:15. |
APA | Li, Yan.,Gambelli, Alberto Maria.,Chen, Jiangzhi.,Yin, Zhenyuan.,Rossi, Federico.,...&Mei, Shenghua.(2023).Experimental study on the competition between carbon dioxide hydrate and ice below the freezing point.CHEMICAL ENGINEERING SCIENCE,268,15. |
MLA | Li, Yan,et al."Experimental study on the competition between carbon dioxide hydrate and ice below the freezing point".CHEMICAL ENGINEERING SCIENCE 268(2023):15. |
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