A gas-phase hydrogenation reaction was studied using a catalyst fine enough to avoid any effect of...

 

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A gas-phase hydrogenation reaction was studied using a catalyst fine enough to avoid any effect of pore diffusion. The rate equation is: For the following gas compositions, sketch the concentration gradients for -a A, H2, and B for the case where the reaction is rapid enough to make PAave 10% less than PA. Assume DA = 14DH2 4.6 A gas-phase hydrogenation reaction was studied using a catalyst fine enough to avoid any effect of pore diffusion. The rate equation is: A + 2H₂ → B I= KPAPH₂ (1 + 12PB) a. For the following gas compositions, sketch the concentration gradients for A, H₂, and B for the case where the reaction is rapid enough to make PA 10% less than P₁. Assume D₁ = DB = DH₂ 4 Case 1 PA = 1 atm PB = 0 PH2 = 2 atm Case 2 PA = 1 atm PB = 0.5 atm PH2 = 1.2 atm b. Estimate the effectiveness factors for the two cases. A gas-phase hydrogenation reaction was studied using a catalyst fine enough to avoid any effect of pore diffusion. The rate equation is: For the following gas compositions, sketch the concentration gradients for -a A, H2, and B for the case where the reaction is rapid enough to make PAave 10% less than PA. Assume DA = 14DH2 4.6 A gas-phase hydrogenation reaction was studied using a catalyst fine enough to avoid any effect of pore diffusion. The rate equation is: A + 2H₂ → B I= KPAPH₂ (1 + 12PB) a. For the following gas compositions, sketch the concentration gradients for A, H₂, and B for the case where the reaction is rapid enough to make PA 10% less than P₁. Assume D₁ = DB = DH₂ 4 Case 1 PA = 1 atm PB = 0 PH2 = 2 atm Case 2 PA = 1 atm PB = 0.5 atm PH2 = 1.2 atm b. Estimate the effectiveness factors for the two cases.

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