Experimental study of CO2 hydrate formation under an electrostatic field

Qi Zhao, Zhao-Yang Chen, Xiao-Sen Li and Zhi-Ming Xia

Energy, 2023, vol. 272, issue C

Abstract: The hydrate-based CO2 capture and storage technique is cutting-edge and promising, but it exhibits slow formation rates and insufficient gas storage capacity, making commercialization challenging. In this work, the CO2 hydrate formation process in fresh water, memory water, and saltwater systems under the electrostatic field was studied, and the influence mechanism of the electrostatic field on the CO2 hydrate formation was discussed. Experimental results showed that the nucleation and growth of CO2 hydrate could be affected by the electrostatic field. The nucleation of CO2 hydrate could be promoted in the presence of an electrostatic field. In the fresh water system, the completion of hydrate formation was 54.5% faster with the 150 V application compared to the one without the electrostatic field. The introduction of an external electrostatic field causes a further reduction in the system's free energy. In the memory water system, the residual hydrate cage fragments could promote the reformation process of hydrate. Nevertheless, the presence of the electrostatic field could weaken the memory effect. In the salt water system, the electrostatic field could promote hydrate formation after the stage of dissolution. Due to the collision of ions with hydrate nuclei, however, the completion time of hydrate formation was increased. This study is anticipated to provide novel insights into the promotion of hydrate formation through the implementation of an electrostatic field.

Keywords: Hydrate-based CO2 capture and storage; Gas hydrate; Formation process; Kinetics; Electrostatic field (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544223005133
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:272:y:2023:i:c:s0360544223005133

DOI: 10.1016/j.energy.2023.127119

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().