Explanation of the two-turn two-suction process in the sulfuric acid conversion step
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Difference in heat exchange processes between ⅣⅠ--ⅢⅡ and ⅢⅠ--ⅣⅡ in conversion 3+1
From the perspective of heat transfer, the temperature rise is greatest in the first layer and lowest in the fourth layer. The heat associated with the pair that is in one layer is always greater than that of the other pair.
It’s about how the reaction heat is distributed among the various sections
On the left is the process gas that has undergone primary conversion, heated by the SO2 fan; on the right is the process gas that has undergone secondary conversion, heated by the gas returning from the intermediate absorber.
The sequence of SO2 flue gas passing through the heat exchanger