10,000 kg/hr of toluene must be pumped at 387.15 K and 1.1 atm absolute pressure from the reboiler of a distillation tower to a second distillation unit without cooling the toluene before it enters the pump. If the friction loss in the line between the reboiler and the pump if 7 kN/m2 and the density of toluene is 866 kg/m3. Calculate the power required to drive the pump, if it will elevate the toluene 10 m, the pressure in the second unit is atmospheric, and the friction loss in the discharge line is 35 kN/m2. The velocity in the pump discharge line is 2 m/s.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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10,000 kg/hr of toluene must be pumped at 387.15 K and 1.1 atm absolute pressure from the reboiler of a distillation tower to a second distillation unit without cooling the toluene before it enters the pump. If the friction loss in the line between the reboiler and the pump if 7 kN/m2 and the density of toluene is 866 kg/m3.


Calculate the power required to drive the pump, if it will elevate the toluene 10 m, the pressure in the second unit is atmospheric, and the friction loss in the discharge line is 35 kN/m2. The velocity in the pump discharge line is 2 m/s.

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