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30 May 2022
a) Suppose a reactant A undergoes liquid-phase reactions according to the following kinetics scheme Reaction Desired?Rate law Activation ener AâB 2 A C A3 i) Does a favorable product distribution result from relatively high or relatively low Ca? Explain. ii) Does a favorable product distribution result from relatively high or relatively low T? Explain. ii) Does a favorable (i.e., small) reactor size result from high or low CA? Explain iv) Does a favorable reactor size result from high or low T? Explain. v) Which type of reactor, PFR or single-staged CSTR, should be chosen for this situation, and should it be operated at high, low, or optimal T to achieve favorable product distribution consistent with small size of reactor? Explain. b) For the kinetics scheme in (a), and regardless of the proper choice of reactor, suppose a CSTR of volume 10 m3 is available to process 0.5 m /min of a feed stream with a concentration (Ca) of 3000 mol/m3. If the temperature is such that k1 = 0.001 (1/sec), and k2= 5*105 m3/mol/sec, calculate the fractional conversion of A and the product distribution (Ca, Cs, C) in the exit stream at steady state
a) Suppose a reactant A undergoes liquid-phase reactions according to the following kinetics scheme Reaction Desired?Rate law Activation ener AâB 2 A C A3 i) Does a favorable product distribution result from relatively high or relatively low Ca? Explain. ii) Does a favorable product distribution result from relatively high or relatively low T? Explain. ii) Does a favorable (i.e., small) reactor size result from high or low CA? Explain iv) Does a favorable reactor size result from high or low T? Explain. v) Which type of reactor, PFR or single-staged CSTR, should be chosen for this situation, and should it be operated at high, low, or optimal T to achieve favorable product distribution consistent with small size of reactor? Explain. b) For the kinetics scheme in (a), and regardless of the proper choice of reactor, suppose a CSTR of volume 10 m3 is available to process 0.5 m /min of a feed stream with a concentration (Ca) of 3000 mol/m3. If the temperature is such that k1 = 0.001 (1/sec), and k2= 5*105 m3/mol/sec, calculate the fractional conversion of A and the product distribution (Ca, Cs, C) in the exit stream at steady state
davejakeLv2
1 Jun 2022
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