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% ÎïÁÏÆ½ºâ dxdz = rhoB*r*Mm /(yA0 * MG); % ÈÈÁ¿ºâËã dTdz = 4*U*(T-TJ)/(dt*MG*Cp)-(rhoB*r*H)/(MG*Cp); ÆäÖÐrΪ·´Ó¦ËÙÂÊ£¬ % ·´Ó¦ËÙ¶È, kmol/kg catalyst hr r=yita*k*kH*PA*PH/(1+kH*PH+KVC*PVC); PA=P0*yA0*(1-x); PH=P0*yH0*(1-x); PVC=P0*x; % Ëٶȳ£Êý, kmol/kg catalyst hr if T<403 k=9.21*(10^13)*exp(-27.3*1000/(8.314*T))+0.0476; else k=1.714*(10^14)*exp(-27.55*1000/(8.314*T)); end if T<403 kH=19.32*exp(2.72*1000/(8.314*T)); else kH=1.09*10^20*exp(39.6*1000/(8.314*T)); end KVC=1.783/10^6*exp(12900/(8.314*T))-2.53; yita=0.295*exp(590/T)-120*exp(4.5*x); ¶ÔÓÚ΢·Ö·½³Ì×édzdxºÍdTdxÔõôÓÃODE45À´½âѽ£¬Çë¸ßÈ˰ïÖú×öÕâ¸ö³ÌÐò |
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