b)

00000CH305121904

achieve 50% total conversion (based on species A fed to the PFR) and (iii) The total
volume of the two reactors.

Calculate the pressure drop in a 60 ft length of 1.5 in. schedule 40 pipe packed with
catalyst pellets 0.25 in. diameter. There is 104.4 ம of gas passing through the
bed. The temperature is constant along the length of pipe at 260°C. The void fraction
is 45% and the properties of gas are similar to air at this temperature. The entering
pressure is 10 atm. Assume viscosity of air at 260°C and 10 atm is 0.0673 Ib,,/ft-h
and the density of air at 260°C and 10 atm is 0.413 டவ! The flow area of 1.5 in.
schedule 40 pipe is 0.0141 ft’,

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