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Unformatted text preview: with a feed flow rate F s =0.1 m 3 /min, a feed concentration C A0s =1.0 kg-mol/m 3 and reactant concentration C As =0.382 kg-mol/ m 3 . The feed flow rate experiences a step increase to 0.2m 3 /min , while all other process parameters remain constant. Answer the following questions: 1. What are the time constant τ and the steady state gain of the process K (include the units)? 2. Determine the dynamic response of the process (i.e., how the reactant concentration responds to the step change in the feed flow rate). Data and assumptions : 1. The reaction rate law is given by: -r A = k C A 0.5 Where the rate constant Is k = 1.0 kg-mol 0.5 /m 1.5 .s. 2. The reactor is maintained at a constant temperature (T=300 K) and is well-mixed. 3. The mass density of the reaction mixture ( ρ =1000 kg/m 3 ) and the reactor volume (V=0.1 m 3 ) are constant....
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- Fall '08
- Chemical Engineering, Chemical reaction, Rate equation, Department of Chemical Engineering & Materials Science, Feed flow rate