摘要
基于简单碰撞理论,建立了含有无机元素影响的焦炭气化反应动力学模型。建模过程中,考虑了七种无机元素含量、催化/抑制能力以及单一无机元素饱和催化倍率对焦炭反应性的影响。实验部分,选取四种生物质样品置于微型流化床反应器中测试了焦炭反应性,并与模型计算值进行了对比,结果表明模型能够较好预测焦炭反应性,同时表现出对不同样品的适应性。该模型能够通过输入样品特性参数和反应工况条件实现焦炭反应性的定量预测。该模型的建立表明固体燃料通用气化反应的规律是存在的,可以为进一步阐明气化反应规律提供理论参考。
Based on the simple collision theory,a kinetic model of char gasification reaction with the influence of inorganic elements was established.In the modeling process,the effects of the content of seven inorganic elements,the catalytic/inhibitory factor,and the fully catalytic ratio of single inorganic element on the char-CO_(2) reactivity were considered.In the experimental part,four biomass samples were selected and placed in a micro-fluidized bed reactor to test the char-CO_(2) reactivity,and compared with the model calculated values.The results show that the model can accurately predict the char-CO_(2) reactivity,and also shows adaptability to different samples.The model can achieve quantitative prediction of char-CO_(2) reactivity by inputting sample characteristic parameters and reaction conditions.The establishment of this model shows that the general law of biomass thermal conversion process exists,which can provide a theoretical reference for further clarifying the gasification reaction law.
作者
宋谦石
王潇伟
张威
汪小憨
李浩文
乔瑜
SONG Qianshi;WANG Xiaowei;ZHANG Wei;WANG Xiaohan;LI Haowen;QIAO Yu(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,Guangdong,China;State Key Laboratory of Coal Combustion,Huazhong University of Science and Technology,Wuhan 430074,Hubei,China;School of Mechanical and Power Engineering,Guangdong Ocean University,Zhanjiang 524088,Guangdong,China;School of Energy Science and Engineering,University of Science and Technology of China,Hefei 230026,Anhui,China)
出处
《化工学报》
EI
CSCD
北大核心
2022年第11期5240-5250,共11页
CIESC Journal
基金
国家自然科学基金项目(52206285)。
关键词
生物质
气化
动力学模型
无机元素
流化床
二氧化碳
biomass
gasification
kinetic modeling
inorganic matter
fluidized-bed
carbon dioxide
