A mixture of SO2, O2, and N2 from sulfur burning with dry air is fed to a converter. The converter oxidizes SO2 to SO3 using two beds with intercooling. The gas is fed to the converter at 415C and 1 atm. The conversion obtained is 95% and the gases exit at 767K. The gases are fed to the second bed at 450C. Assume that the equilibrium conversion is achieved at each bed and that both operate adiabatically. Plot the equilibrium curve under the operating conditions, and compute the conversion reached after the first bed and the composition of the gases entering and exiting the converter.

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SO+ K Pso log10(KP)= Oz 4956 -4.678 T(K) kcal , - 23, 200 kmol kcal =7.9 kmolC