Isopropanol, with 13 wt% water, can be dehydrated to obtain almost pure isopropanol at a 90% recovery by azeotropic distillation with benzene. When condensed, the overhead vapor from the column forms two immiscible liquid phases. Use Table 2.4 with data in Perry’s Handbook and the data below to compute the heat-transfer rate in Btu/h and kJ/h for the condenser.

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Phase Temperature, °C Pressure, bar Flow rate, kg/h: Isopropanol Water Benzene Overhead Vapor 76 1.4 6,800 2,350 24,600 Water-Rich Phase Liquid 40 1.4 5,870 1,790 30 Organic-Rich Phase Liquid 40 1.4 930 560 24,570