Question
1. a) The following elementary gas phase reaction, A 2B Hr(273K) = 80 kJ/mol is conducted in a 200 liters isothermal CSTR. The conversion at
1. a) The following elementary gas phase reaction, A 2B Hr(273K) = 80 kJ/mol is conducted in a 200 liters isothermal CSTR. The conversion at T = 400 C was 90%. The inlet consists of pure A at atmospheric pressure. What operating conditions would you recommend to change to increase the production rate of B (mol/min)? The maximum reactor temperature is 400 C.
b) Determine an expression for the equilibrium conversion of A vs. temperature for the liquid phase, elementary reversible reaction A+B 2C. The equilibrium constant, Kc = 50 at 300K. CpA = CpB = CpC = 30 J/(mol.K). The inlet contains A and B only with equal concentrations. Hr(273K) = 100 kJ/mol
c) For the following pseudo-elementary reaction, A B, the conversion was measured in an isothermal plug flow reactor of volume V at different inlet volumetric flowrates (v0) using an inlet concentration of CA0 = 1 mol/liter. i. (4 pts.) Estimate the reaction rate constant. ii. (3 pts.) If the reaction was second order with the same rate at low conversion, i.e. at XA ~ 0 the rates are equal, how would the curve shift at higher conversions? Plot the curve and explain how you estimated the curve. Do not use general statements from the notes or book. Explain and justify your answer and plot using equations and/or logical arguments based on the equations.
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