TY  - EJOU
AU  - Li, Jun 
AU  - Zeng, Tao 
AU  - Kobayashi, Noriyuki 
AU  - Wu, Rongjun 
AU  - Xu, Haotai 
AU  - Deng, Lisheng 
AU  - He, Zhaohong 
AU  - Huang, Hongyu 

TI  - Carbonation Reaction of Lithium Hydroxide during Low Temperature Thermal Energy Storage Process
T2  - Journal of Renewable Materials

PY  - 2021
VL  - 9
IS  - 9
SN  - 2164-6341

AB  - 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 (CO<sub>2</sub>) is confirmed during the hydration reaction. The carbonation of LiOH can be easily carried out with CO<sub>2</sub> 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.
KW  - LiOH; heat storage; low temperature; carbonation reaction; hydration reaction

DO  - 10.32604/jrm.2021.015231