化学工程2023，Vol.51Issue(12)：66-71,94,7.DOI:10.3969/j.issn.1005-9954.2023.12.014
汽车破碎残余物流化床气化特性数值模拟
Numerical simulation of automotive shredder residue gasification characteristics in a fluidized bed
摘要
Abstract
The three-dimensional numerical model for ASR(automotive shredder residue)air gasification in a fluidized bed was developed based on the CPFD(computational particle fluid dynamics)method,considering pyrolysis,combustion,gasification,and other reactions.The model accuracy was verified by the simulation results of the gas products volume fraction.On this basis,the components distribution and fluid temperature distribution in the reactor during ASR gasification were analyzed,meanwhile,the effects of operating temperature,equivalence ratio and initial bed height on ASR gasification characteristics were investigated.The results show that with the increase of the operating temperature,the mole fraction of CO and H2 are obviously enhanced,the gasification efficiency as well as the carbon conversion efficiency are improved,and the tar content is reduced.At 950 ℃,the gasification efficiency and the carbon conversion efficiency reach 67.09％and 78.75％.Increasing the equivalence ratio leads to greater gas yield and higher carbon conversion efficiency,and results in lower gas low heating value and gasification efficiency.The rise of the initial bed height favors H2 production,but has little effect on ASR gasification in general.关键词
汽车破碎残余物/气化特性/计算颗粒流体力学/流化床Key words
automotive shredder residue/gasification characteristics/computational particle fluid dynamics/fluidized bed分类
资源环境引用本文复制引用
郭冠伦,余洋洋,郭子卿..汽车破碎残余物流化床气化特性数值模拟[J].化学工程,2023,51(12):66-71,94,7.基金项目
高等学校学科创新引智计划(B17034) （B17034）
教育部创新团队发展计划(IRT_17R83) （IRT_17R83）
