Open Access

ARTICLE

Carbonation Reaction of Lithium Hydroxide during Low Temperature Thermal Energy Storage Process

Jun Li^1,2,3, Tao Zeng^1,2,3,*, Noriyuki Kobayashi⁴, Rongjun Wu⁴, Haotai Xu⁴, Lisheng Deng^1,2,3, Zhaohong He^1,2,3, Hongyu Huang^1,2,3,*

1 Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou, 510640, China
2 Guangdong Key Laboratory of New and Renewable Energy Research and Development, Guangzhou, 510640, China
3 Southern Marine Science and Engineering Guangdong Laboratory, Guangzhou, 511458, China
4 Department of Chemical Engineering, Nagoya University, Nagoya, 464-8603, Japan

* Corresponding Authors: Tao Zeng. Email: ; Hongyu Huang. Email:

(This article belongs to the Special Issue: New Trends in Sustainable Materials for Energy Conversion, CO₂ Capture and Pollution Control)

Journal of Renewable Materials 2021, 9(9), 1621-2630. https://doi.org/10.32604/jrm.2021.015231

Received 02 December 2020; Accepted 20 February 2021; Issue published 23 April 2021

Abstract

In order to apply lithium hydroxide (LiOH) as a low temperature chemical heat storage material, the carbonation reaction of LiOH and the prevention method are focused in this research. The carbonation of raw LiOH at storage and hydration condition is experimentally investigated. The results show that the carbonation reaction of LiOH with carbon dioxide (CO₂) is confirmed during the hydration reaction. The carbonation of LiOH can be easily carried out with CO₂ at room temperature and humidity. LiOH can be carbonated at a humidity range of 10% to 20%, a normal humidity region that air can easily be reached. Furthermore, the carbonation reaction rate has not nearly affected by the increase of reaction temperature. An improved storage method by storing LiOH at a low humidity less than 1.0% can be effectively prevented the carbonation of LiOH. The hydration reaction ratio of LiOH at the improved storage method shows a better result compared to the ordinary storage method. Therefore, the humidity should be carefully controlled during the storage of LiOH before hydration and dehydration reaction when apply LiOH as a low heat chemical storage material.

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