Numerical simulation of a cyclone separator to recycle the active components of waste lithium batteries

In this paper, cyclone separator is proposed for the first time to separate particles according to density, and it is applied to the recovery of lithium iron phosphate (LFP) from spent lithium battery materials for the first time. The effect of the flow field on the motion of injected particles in a...

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Main Authors: Xiaoxian Pang, Chengyun Wang, Wei Yang, Haosen Fan, Shi Zhong, Wenzhi Zheng, Hanbo Zou, Shengzhou Chen
Format: Article
Language:English
Published: Taylor & Francis Group 2022-12-01
Series:Engineering Applications of Computational Fluid Mechanics
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/19942060.2022.2053343
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author Xiaoxian Pang
Chengyun Wang
Wei Yang
Haosen Fan
Shi Zhong
Wenzhi Zheng
Hanbo Zou
Shengzhou Chen
author_facet Xiaoxian Pang
Chengyun Wang
Wei Yang
Haosen Fan
Shi Zhong
Wenzhi Zheng
Hanbo Zou
Shengzhou Chen
author_sort Xiaoxian Pang
collection DOAJ
description In this paper, cyclone separator is proposed for the first time to separate particles according to density, and it is applied to the recovery of lithium iron phosphate (LFP) from spent lithium battery materials for the first time. The effect of the flow field on the motion of injected particles in a cyclone separator is studied by means of computational fluid dynamics (CFD). It is found that there is a classification phenomenon caused by the difference in the particle densities and the separation process is simulated accordingly. The results show that 60% LiFePO4 in the original feed can be separated after 7 separations, and the mass purity is 91%, with 7% Al and 2% Fe under instantaneous surface injection conditions. Compared with the original feed, LFP is effectively recycled. After 15 separations, the efficiency increases to 76%. Under simulated continuous injection conditions, the separation efficiency of LFP is 61.22% after 20 simulated separations, and the mass purities of the separated products are 92.53% LFP, 6.92% Al, 0.44% Fe and 0.11% Cu. Compared with the traditional method, the new method has advantages of low energy consumption, low cost, theoretically no pollution, and great development potential.
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spelling doaj.art-d2aa2e2b96c1417bb309b706af7653362022-12-21T23:36:06ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2022-12-0116193795110.1080/19942060.2022.2053343Numerical simulation of a cyclone separator to recycle the active components of waste lithium batteriesXiaoxian Pang0Chengyun Wang1Wei Yang2Haosen Fan3Shi Zhong4Wenzhi Zheng5Hanbo Zou6Shengzhou Chen7School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, People’s Republic of ChinaGAC Automotive Research & Development Center, Guangzhou, People’s Republic of ChinaSchool of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, People’s Republic of ChinaSchool of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, People’s Republic of ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, Guangzhou University, Guangzhou, People’s Republic of ChinaSchool of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, People’s Republic of ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, Guangzhou University, Guangzhou, People’s Republic of ChinaGuangzhou Key Laboratory for New Energy and Green Catalysis, Guangzhou University, Guangzhou, People’s Republic of ChinaIn this paper, cyclone separator is proposed for the first time to separate particles according to density, and it is applied to the recovery of lithium iron phosphate (LFP) from spent lithium battery materials for the first time. The effect of the flow field on the motion of injected particles in a cyclone separator is studied by means of computational fluid dynamics (CFD). It is found that there is a classification phenomenon caused by the difference in the particle densities and the separation process is simulated accordingly. The results show that 60% LiFePO4 in the original feed can be separated after 7 separations, and the mass purity is 91%, with 7% Al and 2% Fe under instantaneous surface injection conditions. Compared with the original feed, LFP is effectively recycled. After 15 separations, the efficiency increases to 76%. Under simulated continuous injection conditions, the separation efficiency of LFP is 61.22% after 20 simulated separations, and the mass purities of the separated products are 92.53% LFP, 6.92% Al, 0.44% Fe and 0.11% Cu. Compared with the traditional method, the new method has advantages of low energy consumption, low cost, theoretically no pollution, and great development potential.https://www.tandfonline.com/doi/10.1080/19942060.2022.2053343Cyclone separatorCFDseparation efficiencyparticlematerial recycling
spellingShingle Xiaoxian Pang
Chengyun Wang
Wei Yang
Haosen Fan
Shi Zhong
Wenzhi Zheng
Hanbo Zou
Shengzhou Chen
Numerical simulation of a cyclone separator to recycle the active components of waste lithium batteries
Engineering Applications of Computational Fluid Mechanics
Cyclone separator
CFD
separation efficiency
particle
material recycling
title Numerical simulation of a cyclone separator to recycle the active components of waste lithium batteries
title_full Numerical simulation of a cyclone separator to recycle the active components of waste lithium batteries
title_fullStr Numerical simulation of a cyclone separator to recycle the active components of waste lithium batteries
title_full_unstemmed Numerical simulation of a cyclone separator to recycle the active components of waste lithium batteries
title_short Numerical simulation of a cyclone separator to recycle the active components of waste lithium batteries
title_sort numerical simulation of a cyclone separator to recycle the active components of waste lithium batteries
topic Cyclone separator
CFD
separation efficiency
particle
material recycling
url https://www.tandfonline.com/doi/10.1080/19942060.2022.2053343
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