Stability investigation and techno-economic assessment of gliding arc plasma coupled electrocatalytic ammonia synthesis system

doi:10.1016/j.cjche.2025.04.014

Chinese Journal of Chemical Engineering ›› 2025, Vol. 85 ›› Issue (9): 251-259.DOI: 10.1016/j.cjche.2025.04.014

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Stability investigation and techno-economic assessment of gliding arc plasma coupled electrocatalytic ammonia synthesis system

Yang Lv, Gaoyang Li, Jianpeng Sun, Honghui Ou, Yang Li, Guidong Yang

State Key Laboratory of Fluorine & Nitrogen Chemicals, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China

Received:2025-03-23 Revised:2025-04-21 Accepted:2025-04-22 Online:2025-05-17 Published:2025-09-28
Contact: Yang Li,E-mail:yangli0528@xjtu.edu.cn;Guidong Yang,E-mail:guidongyang@xjtu.edu.cn
Supported by:
This research was financially supported by National Key Research and Development Program of China (2020YFA0710000), National Natural Science Foundation of China (U22A20391, 22308274), Postdoctoral Fellowship Program of CPSF (GZB20240600, 2023TQ0265, 2024M752589), Innovation Capability Support Program of Shaanxi (NO. 2023-CX-TD-26), and the Programme of Introducing Talents of Discipline to Universities (B23025).

Stability investigation and techno-economic assessment of gliding arc plasma coupled electrocatalytic ammonia synthesis system

Yang Lv, Gaoyang Li, Jianpeng Sun, Honghui Ou, Yang Li, Guidong Yang

State Key Laboratory of Fluorine & Nitrogen Chemicals, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China

通讯作者: Yang Li,E-mail:yangli0528@xjtu.edu.cn;Guidong Yang,E-mail:guidongyang@xjtu.edu.cn
基金资助:
This research was financially supported by National Key Research and Development Program of China (2020YFA0710000), National Natural Science Foundation of China (U22A20391, 22308274), Postdoctoral Fellowship Program of CPSF (GZB20240600, 2023TQ0265, 2024M752589), Innovation Capability Support Program of Shaanxi (NO. 2023-CX-TD-26), and the Programme of Introducing Talents of Discipline to Universities (B23025).

Abstract

Abstract: The plasma-coupled electrocatalytic cascade technology with NO_x^- as intermediate product is a potential method to realize green ammonia synthesis. The matching of the formation rate and consumption rate of NO₂^- as the main absorption product is an important prerequisite for the system to achieve stable operation. Therefore, this paper firstly emphasizes the importance of operating parameters on the cascade system based on the single factor experiment. Secondly, the empirical equation between electrocatalytic operating conditions and NO₂^- consumption rate was established by response surface analysis. Based on this equation, the electrocatalytic operating parameters were optimized to achieve the dynamic equilibrium between NO₂^- formation rate and consumption rate. Finally, the techno-economic assessment model was established to calculate the levelized cost of ammonia based on the cascade system, and the single-variable sensitivity analysis was performed to provide the clear guidance for cost reduction.

Key words: Ammonia synthesis, Plasma, Electrochemistry, Equilibrium, Response surface analysis, Economics

摘要： The plasma-coupled electrocatalytic cascade technology with NO_x^- as intermediate product is a potential method to realize green ammonia synthesis. The matching of the formation rate and consumption rate of NO₂^- as the main absorption product is an important prerequisite for the system to achieve stable operation. Therefore, this paper firstly emphasizes the importance of operating parameters on the cascade system based on the single factor experiment. Secondly, the empirical equation between electrocatalytic operating conditions and NO₂^- consumption rate was established by response surface analysis. Based on this equation, the electrocatalytic operating parameters were optimized to achieve the dynamic equilibrium between NO₂^- formation rate and consumption rate. Finally, the techno-economic assessment model was established to calculate the levelized cost of ammonia based on the cascade system, and the single-variable sensitivity analysis was performed to provide the clear guidance for cost reduction.

关键词: Ammonia synthesis, Plasma, Electrochemistry, Equilibrium, Response surface analysis, Economics

Yang Lv, Gaoyang Li, Jianpeng Sun, Honghui Ou, Yang Li, Guidong Yang. Stability investigation and techno-economic assessment of gliding arc plasma coupled electrocatalytic ammonia synthesis system[J]. Chinese Journal of Chemical Engineering, 2025, 85(9): 251-259.

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Stability investigation and techno-economic assessment of gliding arc plasma coupled electrocatalytic ammonia synthesis system

Stability investigation and techno-economic assessment of gliding arc plasma coupled electrocatalytic ammonia synthesis system

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