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SO2 is oxidised to SO3 in a small pilot-plant reactor.


SO2 is oxidised to SO3 in a small pilot-plant reactor.

SO2  +0.5O2  → SO3 ; ΔHr° = -99.28 kJ/mol 


SO2 and 100% excess air are fed to the reactor at 450°C. The reaction proceeds to a 65% SO2 conversion, and the products emerge from the reactor at 550°C. The reactor is surrounded by a water jacket into which water at 25°C is fed. SO2 feed rate is 1922 mol/min, and the air feed rate to the reactor is 9149 mol/min. The production rate of SO3 is 1249 mol/min. The flow rates of SO2 and air in the product stream are 673 and 8525 mol/min, respectively. 


Calculate 

a) the extent of reaction 

b) the heat that must be transferred from the reactor to the cooling water 

c) the minimum flow rate of water (kg/min) if its temperature rise is 15°C. 


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engineering   Chemical-Engineering   
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