A continuous fractionation column is to be designed to separate 20000 kg / hr of a mixture of 40% benzene and 60% toluene into a distillate containing 97% benzene and a residual product of 96% toluene. These percentages are expressed by weight. A reflux ratio of 3.5 moles per 1 mole of product will be used. The molar latent heats of benzene and toluene are 7360 and 7960 cal / mol, respectively. Benzene and toluene form an ideal system with a relative volatility of the order of 2.5. The feed has a boiling point of 95 ° C at a pressure of 1 atm. i. Calculate the moles of distilled and residual products per hour ii. Calculate Qr and QC. Feed is a liquid at 20 ° C (specific heat = 0.44 cal / g ° C)

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Distillation

Distillation is a process/technique to separate more volatile components from less volatile components using the principle of relative volatility. In chemical engineering, distillation is one of the most common and important topics that is involved in almost every industry and process.