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在常压(?)400—550℃的条件下,分别以不同粒度(20—40,40—60,60—80目)的催化剂,在流化床积分反应器中,获得了铬-磷催化剂烧炭动力学速度方程式v=k_0exp(-E/RT)·P_(o2)·C_c。其中活化能E=95.29-kJ/mol,k_0=3.25×10~5S~(-1)·atm~(-1)。首先进行了催化剂颗粒和流速对扩散的影响试验,发现表面反应为速率的控制步骤。实验结果表明,480℃以上与连续模型相符,低于480℃时与缩核摸型相符。
Under normal pressure (?) 400-550 ℃ conditions, respectively, with different particle size (20-40, 40-60, 60-80 mesh) catalyst, in the fluidized bed integration reactor, chromium-phosphorus catalyst Carbonized kinetic velocity equation v = k_0exp (-E / RT) · P_ (o2) · C_c. The activation energy E = 95.29-kJ / mol and k_0 = 3.25 × 10 -5 S -1 atm -1. First, the influence of catalyst particle and flow rate on diffusion was tested and the surface reaction was found to be the rate controlling step. The experimental results show that above 480 ℃ consistent with the continuous model, below 480 ℃ consistent with the mode of nuclear condensation.