A mixture of SO2, O2, and N2 from sulfur burning using dry air is fed to a converter. The mixture contains 10% per volume of SO2. The gas is fed to the converter at 415C and 1 atm. The converter oxidizes SO2 to SO3 using two beds with intercooling. Assume that the equilibrium conversion is reached at each one of the beds (which operate adiabatically). After the first bed, the stream is sent to an absorption tower where all the SO3 is removed. The gases are recycled to the reactor and fed to the second bed at 450C. Determine the equilibrium curve for each bed and the conversion after the first bed as well as the global conversion of the converter.

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1 SO2 + 02 S03 Pso 4956 Kp Pso: P where logo(K) 4.678 T(K) kcal AH, = 23,200 kmol kcal =7.9 kmolC