Experimental research on steady-state operation characteristics of gas-solid flow in a 15.5 m dual circulating fluidized bed system

doi:10.1016/j.cjche.2020.10.013

Chinese Journal of Chemical Engineering ›› 2021, Vol. 32 ›› Issue (4): 70-76.DOI: 10.1016/j.cjche.2020.10.013

• Fluid Dynamics and Transport Phenomena • Previous Articles Next Articles

Experimental research on steady-state operation characteristics of gas-solid flow in a 15.5 m dual circulating fluidized bed system

Yangjun Wei, Leming Cheng, Erdong Wu, Liyao Li

State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, Zhejiang 310027, China

Received:2020-04-02 Revised:2020-08-29 Online:2021-06-19 Published:2021-04-28
Contact: Leming Cheng
Supported by:
The authors are grateful for the financial support of National Key Research and Development Program of China (2018YFB0605403).

Experimental research on steady-state operation characteristics of gas-solid flow in a 15.5 m dual circulating fluidized bed system

Yangjun Wei, Leming Cheng, Erdong Wu, Liyao Li

State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou, Zhejiang 310027, China

通讯作者: Leming Cheng
基金资助:
The authors are grateful for the financial support of National Key Research and Development Program of China (2018YFB0605403).

Abstract

Abstract: Gas-solid hydrodynamic steady-state operation is the operating basis in a chemical looping dual-reactor system. This study reported the experimental results on the steady-state operation characteristics of gas-solid flow in a 15.5 m high dual circulating fluidized bed (CFB) cold test system. The effects of superficial gas velocity, static bed material height and solid returning modes on the steady-state operation characteristics between the two CFBs were investigated. Results suggest that the solid distributions in the dual CFB test system was mainly determined by the superficial gas velocity and larger solid inventory may help to improve the solid distributions. Besides, cross-returning mode coupled with self-returning is good for steady-state running in the dual-reactor test system.

Key words: Chemical looping, Dual CFB, Steady-state operation, Hydrodynamics

摘要： Gas-solid hydrodynamic steady-state operation is the operating basis in a chemical looping dual-reactor system. This study reported the experimental results on the steady-state operation characteristics of gas-solid flow in a 15.5 m high dual circulating fluidized bed (CFB) cold test system. The effects of superficial gas velocity, static bed material height and solid returning modes on the steady-state operation characteristics between the two CFBs were investigated. Results suggest that the solid distributions in the dual CFB test system was mainly determined by the superficial gas velocity and larger solid inventory may help to improve the solid distributions. Besides, cross-returning mode coupled with self-returning is good for steady-state running in the dual-reactor test system.

关键词: Chemical looping, Dual CFB, Steady-state operation, Hydrodynamics

Yangjun Wei, Leming Cheng, Erdong Wu, Liyao Li. Experimental research on steady-state operation characteristics of gas-solid flow in a 15.5 m dual circulating fluidized bed system[J]. Chinese Journal of Chemical Engineering, 2021, 32(4): 70-76.

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Experimental research on steady-state operation characteristics of gas-solid flow in a 15.5 m dual circulating fluidized bed system

Experimental research on steady-state operation characteristics of gas-solid flow in a 15.5 m dual circulating fluidized bed system

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