Question

The thermal, gas-phase dimerization of butadiene follows the following kinetics: = kegutadiene d-butadiene Kcy where, k-5.4 x 107 exp (-100.250) , m3/(kg mol-s) Where, R= 8.314 kJ/kg mol-K A current set-up employs three CSTRs arranged in series with, with volumes of 8, 6, and 4 m, respectively. The reaction may be assumed to be isothermal at 500 K, and 101 kPa. Butadiene is fed ata rate of 7 m3/day Estimate the total conversion of butadiene through the three reactors. Size a batch reactor to achieve the same conversion as the system described above. Assume the batch reactor operates 50 percent of the time. a. b.

Note:

Cao= Yao*Po/ R*T (where Yao =1, Po= 101 kPa, T= 500K, and R= 8.314)

Ca=Cao(1-x)/(1+ Ɛ*x) (where Ɛ is -0.5)

Answer 1

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从、 C Ao 13 21 14.19

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