化工学报2018，Vol.69Issue(1)：381-388,8.DOI:10.11949/j.issn.0438-1157.20171270
三维上流式反应器床层流动和返混特性
Flow and back-mixing characteristics in three dimensional up-flow reactor
摘要
Abstract
Using an up-flow reactor with inner diameter of 280 mm, the industrial gas phase with air and the residual oil with the mixture of glycerol and water are simulated.The effects of particle size, particle density, liquid viscosity and the ratio of bed height to diameter under different operating conditions on the total bed pressure drop and its fluctuation, and the axial back-mixing were investigated in an up-flow reactor packed by alumina spherical catalyst particles.A correlation of pressure drop is obtained with the relative error below 12％ which is suitable for gas-liquid-solid systems simulated industrial operating system and operating conditions in an up-flow reactor.The total pressure drop decreases with the increase of particle size, the ratio of height to diameter, particle density and liquid viscosity.The pressure fluctuation becomes stronger when the superficial gas velocity increases.The axial back-mixing in the reactor packed by smaller size and smaller density particles with the larger ratio of height to diameter is more serious.Both bed pressure drop and axial back-mixing increase with the increasing superficial gas velocity.关键词
上流式反应器/流动/返混特性/多相流反应器/传递过程Key words
up-flow reactor/flow/back-mixing characteristics/multiphase reactor/transport processes分类
化学化工引用本文复制引用
王威杰,雍玉梅,杨超,于康..三维上流式反应器床层流动和返混特性[J].化工学报,2018,69(1):381-388,8.基金项目
国家重点研发计划重点专项(2016YFB0301701) （2016YFB0301701）
国家自然科学基金项目(21776283) （21776283）
中国科学院前沿科学重点研究项目(QYZDJ-SSW-JSC030). supported by the National Key Research and Development Program (2016YFB0301701),the National Natural Science Foundation of China (21776283) and the Key Research Program of Frontier Sciences,CAS(QYZDJ-SSW-JSC030). （QYZDJ-SSW-JSC030）
