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Problem at home1: Crude dichlorobenzene is pumped from a storage tank to a distillation column. The tank is blanketed with nitrogen and the pressure above

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Problem at home1: Crude dichlorobenzene is pumped from a storage tank to a distillation column. The tank is blanketed with nitrogen and the pressure above the liquid surface is held constant at 0.1 bar. The minimum depth of liquid in the tank is 1m. The distillation column operates at a pressure of 500mmHg. The feed point to the column is 12m above the base of the tank. The tank and column are connected by a 50mm internal diameter commercial steel pipe, 200m long. The pipe run from the tank to the column contains the following valves and fittings:20 standard Radius 90 elbows, two gate valves to isolate the pump(operated fully open), an orifice plate, and a flowcontrol valve. If the maximum flow rate required is 20,000kg/h, calculate the pump motor rating (power) needed. Take the pump efficiency as 70% and allow for a pressure drop of 0.5 bar across the control valve and a loss of 10 velocity heads across the orifice. Density of dichlorobenzene 1300kg/m3, viscosity 1.4cp

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