Balance de Materia y Energía Combinado

For the production of white sugar in sugar mills, SO2 is required as a bleaching agent. It is generated by the direct oxidation of sulfur according to the given reactions. To prevent damage to the sulfur burner, sulfur dioxide and the other exhaust gases are recirculated at 400 K, maintaining the adiabatic temperature of the system at the burner outlet at 1000 K. Before gasification, the sulfur is brought to its melting point. Oxygen is fed at ambient temperature in an air stream with 70% relative humidity (RH) at 750 mmHg, with a 50% excess, for 100% sulfur conversion. To cool the recycle gas stream to 400 K, an indirect contact evaporator is used, employing liquid water at 30°C, which exits as saturated steam at 200°C. For a 1 mole of sulfur basis, determine: a- The composition of the gas streams. b- The mass flow rate of cooling water in the indicated heat exchanger. c- The quantity of cooling water required if 1000 kg of sulfur enters the process.