管式法测试硫氧化碳催化水解宏观动力学  

Study of the Global Kinetics of COS Catalytic Hydrolysis

作　　者：李建伟[1] 付海洋[2] 乔聪震[3] 

机构地区：[1]北京化工大学化工系,100029 [2]禹州化工总厂 [3]河南大学化工系

出　　处：《化肥设计》1997年第4期15-17,21,共4页Chemical Fertilizer Design

摘　　要：利用直流管式反应器直接测试了活性氧化铝催化剂上硫氧化碳水解宏观动力学。实验在102～155℃、常压、硫氧化碳浓度6.5～20.3mg/Nm^3、汽/气比0.03～0.08和二氧化碳气氛条件下进行;以Gauss-Newton法对实验数据进行最优化参数估值,得到了宏观动力学方程: r_(cos)=40.06exp(-15894/RT)y_(cos)^(0.69)yh_2^(-0.14)oyco_2^(-1.0)确定了COS、H_2O和CO_2的反应级数分别为0.69、-0.14和1.0。验证实验结果表明,在1050～2050 h^(-1)空速范围内,可忽略外扩散对该体系反应速率的影响。The global kinetics model of COS hydrolysis over activated alumina catalyst was investigated using a tubular-flow reactor under conditions :102- ℃atmospheric pressure, COS concentration 6. 5-20. 3 mg/ Nm3, vapour /gas ratio 0. 03 -0. 08 and CO2 atmosphere, Gauss-Newton method is used to estimate the parameters of the global kinetic model of this system. The established global kinetic model is as follows- 0. 69, - 0. 14,- 1. 0-order behavior were observed for COS, H_2O, and CO_2 respectively, The external mass transfer resistance is negligible under the range of space velocity:1050-2050h-1

关 键 词：硫氧化碳 动力学 水解 管式法 氧化铝催化剂 

分 类 号：TQ426.81[化学工程]