The gas-phase reversible reaction A ⇄ B is carried out under high pressure in a packed-bed reactor with pressure drop. The feed consists of both inerts I and Species A with the ratio of inerts to the species A being 2 to 1. The entering molar flow rate of A is 5 mol/min at a temperature of 300 K and a concentration of 2 mol/dm³. Work this problem in terms of volume.

Additional information:

1. Adiabatic Operation. Plot X, X_e, p, T, and the rate of disappearance as a function of V up to V = 40 dm³. Explain why the curves look the way they do.
2. Vary the ratio of inerts to A (0≤ΘI≤10) and the entering temperature, and describe what you find.
3. Plot the heat that must be removed along the reactor (Q˙ vs. V) to maintain isothermal operation. Part (c) is “C” level of difficulty. We will continue this problem in Chapter 12.

Transcribed Image Text:

FA0 = 5.0 mol/min CAO = 2 mol/dm3 C = 2CA0 CFI=18 cal/mol/K Kc 1000 at 300 K E = 10000 cal/mol CPB 160 cal/mol/K pB = 1.2 kg/dm Too = 300 K CPA = 160 cal/mol/K T = 300 K Tao = 300 K AHRX = -20000 cal/mol Ua= 150 cal/dm/min/K V = 40 dm app = 0.02 dm- Coolant m'c = 50 mol/min k = 0.1 min at 300 K CPCool = 20 cal/mol/k