物理化学学报 >> 1988, Vol. 4 >> Issue (04): 349-355.doi: 10.3866/PKU.WHXB19880405

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在Fe-Zn-Mg-Cr尖晶石结构催化剂上丁烯-2氧化动力学

邓增群; 金韵; 俞启全; 庞礼   

  1. 北京大学化学系
  • 收稿日期:1986-10-23 修回日期:1987-04-10 发布日期:1988-08-15
  • 通讯作者: 俞启全

THE KINETICS OF OXIDATION OF BUTENE-2 OVER Fe-Zn-Mg-Cr SPINEL CATALYST

Deng Zengqun; Jin Yun; Yu Qiquan; Pang Li   

  1. Chemistry Department; Peking University
  • Received:1986-10-23 Revised:1987-04-10 Published:1988-08-15
  • Contact: Yu Qiquan

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摘要： 用玻璃外循环无梯度反应器研究了在Fe-Zn-Mg-Cr尖晶石结构催化剂上丁烯-2氧化脱氢动力学。丁烯-2氧化脱氢动力学服从三步骤Redox机理。用脉冲法研究了催化剂用丁烯-2还原及还原催化剂用氧再氧化步骤。用脉冲法测定了丁烯-2吸附热。丁烯-2及丁二烯深度氧化动力学服从经验速度方程。用正交设计法估计了动力学方程的参数。丁烯-2氧化脱氢速度比丁烯-1要快。

Abstract: The kinetics of oxidative dehydrogenation of butene-2 over Fe-Zn-My-Cr spinel catalyst has been investigated in a flow-recirculation glass reactor. The kinetics of oxidative dehydrogenation of butene-2 obeyed the Redox mechanism of three steps. The reduction step of catalyst with butene-2 and reoxidation step of reduced catalyst with oxygen were investigated by the pulse method. The heat of adsoption of butene-2 was determined by the pulse method. The kinetics of deep oxidation of butene-2 and butadiene obeyed the empirical rate equation. The values of parameters of kinetic equations were estimated by the method of orthogonal design. It has be shown that the rate of oxidative dehydrogenation of butene-2 was faster than the rate of butene-1.