In October 2020
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Some of the ethylene does not react, some form oxide, some turn to CO2 and water.
The entire gas mixture enters an absorption tower where water is sprayed. The oxide is
converted to glycol. The gas leaving the absorber analyzes C2H4 : 1.085%, CO2 :
4.345%, O2 : 13.055% and N2 : 81.515% on dry basis. The partial pressure (pp) of H2O
in this gas is 15.4 mm Hg while total pressure is 745 mm Hg. If one mole of water is
sprayed per 100 mole of gas mixture, calculate the composition of ethylene glycol–
water product formed.
fluid in a liquid phase heating system. The thermic fluid enters an indirect fired heater
at a temperature of 450 K and leaves the heater at a temperature of 550 K. Calculate the
supply of heat to the heater per kg of the liquid heated. The heat capacity of the fluid is
given by the equation
CP = 1.435 + 2.19 × 10–3T, kJ/(kg K)
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