Pressure variation in PFR reactor: Use the Ergun equation derived in class, along with the PFR reactor design equation, to determine variation in pressure along the reactor position for the following reaction stoichiometry: Catalyst properties (for Ergun parameter): Air flow rate in reactor: 100 lbm/hour; T & P conditions at inlet: T = 200 C; P = 5 atm; Air properties at inlet: μ0 = 0.0673 lbm/ft-hr; ρ0 = 0.413 lbm/ft3; Catalyst: ρCAT = 100 lbm/ft3; particle diameter = 0.20 inches; void fraction Φ = 0.37; Single tube diameter (ID) = 1.25 inches; Gravitational constant: gC = 4.17 x 108 lbm-ft/(lbf-hr2) Reactor conditions: Reaction: A + B → C, -rA’ = k*PA, with k = 0.08 lb mol/(lb cat-hr); Assume that the B component is oxygen, and it is present in large excess, so not included in the rate equation; FA0 = 2 lb mol/hr; yA0 = 0.15; PA0 = 0.75 atm. Write out the Ergun-based differential equation and the reactor design differential equation, with numeric values substituted in for the equation parameters. Present a single graph showing the trend in pressure and conversion with position along the PBR.
Pressure variation in PFR reactor: Use the Ergun equation derived in class, along with the PFR reactor design equation, to determine variation in pressure along the reactor position for the following reaction stoichiometry:
Catalyst properties (for Ergun parameter):
Air flow rate in reactor: 100 lbm/hour;
T & P conditions at inlet: T = 200 C; P = 5 atm;
Air properties at inlet: μ0 = 0.0673 lbm/ft-hr; ρ0 = 0.413 lbm/ft3;
Catalyst: ρCAT = 100 lbm/ft3; particle diameter = 0.20 inches; void fraction Φ = 0.37;
Single tube diameter (ID) = 1.25 inches;
Gravitational constant: gC = 4.17 x 108 lbm-ft/(lbf-hr2)
Reactor conditions:
Reaction: A + B → C, -rA’ = k*PA, with k = 0.08 lb mol/(lb cat-hr);
Assume that the B component is oxygen, and it is present in large excess, so not included in the rate equation;
FA0 = 2 lb mol/hr; yA0 = 0.15; PA0 = 0.75 atm.
Write out the Ergun-based differential equation and the reactor design differential equation, with numeric values substituted in for the equation parameters.
Present a single graph showing the trend in pressure and conversion with position along the PBR.
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