文献类型：期刊文献

英文题名：Reaction kinetics and product evolution of hydrolysis in copper-chlorine thermochemical cycle for hydrogen production

作者：Tang, Wenbin[1,2];Shen, Jin[3];Shen, Zhongjie[1,2];Wang, Jiawei[3];Dong, Zizheng[1,2];Xu, Jianliang[1,2];Liu, Haifeng[1,2]

机构：[1]East China Univ Sci & Technol, Natl Energy Coal Gasificat Technol Res & Dev Ctr, POB 272, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Shanghai Engn Res Ctr Coal Gasificat, POB 272, Shanghai 200237, Peoples R China;[3]Hangzhou Oxygen Plant Grp CO Ltd, Hangzhou, Zhejiang, Peoples R China

年份：2024

卷号：92

起止页码：409

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20244317264261);WOS:【SCI-EXPANDED(收录号:WOS:001344030800001)】；

基金：This study is supported by the National Natural Science Foundation of China (22378130), and the Fundamental Research Funds of the Central Universities (2022ZFJH004).

语种：英文

外文关键词：Hydrogen production; Cu-Cl thermochemical cycle; Hydrolysis reaction; By-product; Kinetics

摘要：By-products of the hydrolysis reaction in the copper-chlorine thermochemical cycle for hydrogen production are key to the final thermal and hydrogen efficiency. The current study focuses on the influences of reaction time, temperature, and steam partial pressure on the hydrolysis reaction and by-product formation mechanism via experimental and multiple analytical methods. The result demonstrates that the hydrolysis reaction of CuCl2 and steam converts to CuCland Cu2OCl2, with a high conversion of 97%, while the Cu2OCl2 and CuCl2-CuO product mixtures exhibit interconversion capabilities. The increase of temperature increases the CuClproduct content, while the decrease of steam partial pressure increases the by-product CuCl2. Particle morphology and reaction thermodynamics are analyzed for main and by-products formation. Finally, the homogeneous reaction model and shrinking core model are used and compared for the activation energy of the formation of Cu2OCl2 for the hydrolysis reaction and the effect of by-products.