摘要
开发了一种粒焦动态反应性测量装置,通过分析焦炭溶损反应尾气中CO2的含量变化,构建了焦炭溶损速率和动态粒焦反应性的数学模型.通过对两种不同热性质工业焦炭进行实验,测得粒焦反应性的相对标准偏差小于0.5%,模拟计算粒焦反应性指标与实验值相对误差小于1%.通过对焦炭溶损速率曲线分析,确定了焦炭溶损反应过程中化学反应控制、混合控制和气体内扩散控制的反应阶段,阐明了不同反应性焦炭的溶损反应规律.通过溶损速率分析揭示了块焦反应性和粒焦反应性的关系.
A dynamic reactivity of particulate coke analyzer was described. Mathematical models for the solution loss rate and the dynamic reactivity of particulate coke were derived from the COz content in the exhaust after reaction. Two kinds of industrial cokes with different reac- tivity were selected to carry out the solution loss reaction test. The relative standard deviation of the reactivity index of particulate coke （PRI） is less than 0.5%; The relative error of PRI derived from the mathematical model is less than 1%. The chemical reaction control, mixed control and internal diffusion control during the solution loss reaction process were verified through the solu- tion loss rate curves of cokes. And the characteristics of the solution loss reaction of two kinds of industrial cokes were identified using the mathematical model. The analysis of solution loss rate of coke revealed the relationship between the coke reactivity index （CRI） and reactivity index of particle coke （PRI）.
出处
《煤炭转化》
CAS
CSCD
北大核心
2015年第3期70-73,共4页
Coal Conversion
基金
国家自然科学基金-煤炭联合基金资助项目(U1361212)
河北省自然科学基金-钢铁联合研究基金资助项目(B2013209283)
唐山市科技计划项目(14130241B)
关键词
焦炭
溶损速率
反应性
coke
solution loss rate
reactivity
