化工进展2016，Vol.35Issue(6)：1687-1697,11.DOI:10.16085/j.issn.1000-6613.2016.06.009
微型流化床反应分析的方法基础与应用研究
Fundamentals and applications of micro fluidized bed reaction analysis
摘要
Abstract
Accurate measurement of gas-solids reaction characteristics,calculation of reaction kinetics and analysis of reaction mechanism are important to studies and developments of process engineering technologies in areas of energy,chemical engineering,and metallurgy. Analyzing various existing gas-solids reaction analysis approaches and instruments,we propose the use of micro fluidized bed (MFB) to realize isothermal differential reaction under conditions with rapid heating and low diffusion limitation. After systematic studies on hydrodynamics of micro fluidized bed,we have developed a micro fluidized bed reaction analyzer (MFBRA) and further verified its applications for many typical gas solids reactions,including pyrolysis,combustion,gasification,reduction,catalysis,and absorption. These applications well demonstrated MFBRA for its inherent advantages of intensified heat and mass transfer,minimized diffusion limitation and online real-time isothermal differential reaction. It particularly is applicable to analysis of rapid complex reactions and enables several extended functions for gas-solids reaction analysis like using steam atmosphere,on-line particle sampling and decoupling of reactions in series. MFBRA provides actually an effective TGA-complementary approach and instrument for gas-solids reaction analysis.关键词
微型流化床/热重分析仪/气固反应/反应分析/动力学/微型流化床反应分析仪Key words
micro fluidized bed/thermogravimetric analyzer (TGA)/gas-solid reaction/reaction analysis/kinetics/MFBRA分类
化学化工引用本文复制引用
曾玺,王芳,余剑,岳君容,姚梅琴,许光文..微型流化床反应分析的方法基础与应用研究[J].化工进展,2016,35(6):1687-1697,11.基金项目
科技部重大仪器专项（2011YQ120039）、国家自然科学基金（21306209）及国家高技术研究发展计划（2015AA050505-02）项目。 （）
