CuO／Al_2O_3脱除SO_2的固定床模型研究  

A Fixed-Bed Reactor Model for Flue Gas SO_2 Removal over CuO/Al_2O_3 Sorbent-Catalyst

作　　者：贾哲华[1] 刘振宇[1] 赵有华[1] 

机构地区：[1]中国科学院山西煤炭化学研究所煤转化国家重点实验室

出　　处：《化学反应工程与工艺》2007年第3期200-206,共7页Chemical Reaction Engineering and Technology

基　　金：国家自然科学基金重点项目(90210034)

摘　　要：在CuO/Al_2O_3颗粒脱硫动力学基础上,建立了固定床反应模型,探讨了床层的动态脱硫行为,给出了固定床内硫分布曲线的数学表达式。分析结果表明,固相硫及气相硫沿床层位置的变化规律相同,床层利用率量随反应气体浓度及流量的增大而降低,而与床层高度无关。并对SO_2穿透时间及穿透曲线进行了预测,与实验结果有良好的一致性。Based on a pellet model developed earlier, a fixed-bed reactor model for SO2 removal over CuO/Al2O3 sorbent-catalyst was developed. The SO2 removal behavior in the bed was discussed and the expression of the distribution of sulfur in the fixed-bed was given. The mathematical analysis from the model indicated that the sulfur distributions in the gas and the solid phases were identical; the utility of the bed decreases with increasing gas concentration and space velocity, but was not related with the length of bed. SO2 breakthrough curves predicted by the model fit experimental data well.

关 键 词：氧化铜/氧化铝 固定床 二氧化硫 动力学模型 

分 类 号：TQ013.2[化学工程]