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In the manufacture of benzaldehyde in an experimental reactor, a mixture of toluene and air is passed through a catalyst bed where it reacts to form benzaldehyde: C6H5CH3+O2C6H5CHO+H2O Dry air and toluene gas are fed to the reactor at a temperature of 175C and at atmospheric pressure: To maintain a high yield air is supplied in 100 per cent excess over that required for complete comversion of the toluene charged. The toluene feed rate is 1.2kmolhr1,13% of the toluene charge is converted to benzaldehyde and 0.5% burns to form CO2 and H2O : C6H5CH3+9O27CO2+4H2O Cooling water is circulated through a jacket on the converter entering at 25C and leaving at 40C. The hot gases leave the reactor at 190C. Calculate: (a) The composition of the inlet stream to the reactor. (b) The composition of the exhaust gas from the reactor. (c) The flow rate of cooling water in kghr1. (5 marks) (5 marks) (15 marks) Heat cap (a) 9.5% toluene, 19.0%O2,71.5%N2 (b) C6H5CH38.22,O217.34%,N271.45%, C6H5CHO1.24%,H2O1.43%,CO20.33% (c) 1057kgh1 In the manufacture of benzaldehyde in an experimental reactor, a mixture of toluene and air is passed through a catalyst bed where it reacts to form benzaldehyde: C6H5CH3+O2C6H5CHO+H2O Dry air and toluene gas are fed to the reactor at a temperature of 175C and at atmospheric pressure: To maintain a high yield air is supplied in 100 per cent excess over that required for complete comversion of the toluene charged. The toluene feed rate is 1.2kmolhr1,13% of the toluene charge is converted to benzaldehyde and 0.5% burns to form CO2 and H2O : C6H5CH3+9O27CO2+4H2O Cooling water is circulated through a jacket on the converter entering at 25C and leaving at 40C. The hot gases leave the reactor at 190C. Calculate: (a) The composition of the inlet stream to the reactor. (b) The composition of the exhaust gas from the reactor. (c) The flow rate of cooling water in kghr1. (5 marks) (5 marks) (15 marks) Heat cap (a) 9.5% toluene, 19.0%O2,71.5%N2 (b) C6H5CH38.22,O217.34%,N271.45%, C6H5CHO1.24%,H2O1.43%,CO20.33% (c) 1057kgh1