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Volume 115
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Numerical modelling of reaction behavior for chemical looping hydrogen production system by CPFD
Liyan Sun a b *, Yuedong Zhang a, Jialei Cao a, Rui Xiao a
a Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing, 211189, China
b Xinjiang Key Laboratory of High Value Green Utilization of Low-rank Coal, Changji, 831100, China
10.1016/j.partic.2026.04.010
Volume 115, August 2026, Pages 148-156
Received 22 January 2026, Revised 4 April 2026, Accepted 13 April 2026, Available online 27 April 2026, Version of Record 29 May 2026.
E-mail: sunliyan@seu.edu.cn
Highlights

• Numerical simulation of a full-cycle chemical looping hydrogen production system is carried out.

• Inter-reactor cycling characteristics and microscopic details were investigated.

• Results validated the feasibility of CLHP and established references for advancing CLHP.


Abstract

Hydrogen stands as a pivotal energy carrier with significant potential to facilitate the global transition towards a low-carbon energy future. The main challenge in current stage is the production of hydrogen with less emission and high efficiency. To resolve this problem, chemical looping hydrogen production (CLHP) is proposed and investigated. The key factors influencing the efficiency of CLHP are the gas-solid flow, heat transfer and mass transfer processes. A dual-reactor system is established in this work and numerical model based on CPFD is utilised for investigating the reaction characteristics. Hydrogen production decreases with increasing gas velocity in the hydrogen production reactor. Variations in the solid circulation rate alter the mass and heat distribution within the system, consequently affecting the hydrogen production rate. A riser gas velocity of 7 m/s and a circulation rate of 0.15 kg/s are the recommended values for the current constructor. Overall, reactor temperature remains the predominant influencing factor. This study provides insights for reactor optimization and scale-up design.

Graphical abstract
Keywords
Chemical looping hydrogen production; Numerical simulation; CPFD; Reaction behavior
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