Problems in the process calculation of the conventional Claus catalytic reaction section
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When calculating the converter temperature in the catalytic reaction section, books and literature often recommend considering only the formation reactions of S6 and S8. I would like to ask: since there are two main reactions in a converter, how can the reaction temperature be calculated using equilibrium constants? Seek expert answers; let’s discuss together.
To calculate the reaction temperature, it is necessary to know the amounts and compositions of the materials before and after the reaction, in order to determine the enthalpy of these materials before and after the reaction; thereafter, the heat of reaction can be calculated. The enthalpy of the inlet material + reaction heat = the enthalpy of the outlet material + heat loss; knowing the inlet temperature, its outlet temperature can be calculated.
You have determined the outlet temperature based on heat balance. According to the information I’ve seen, the reaction temperature of a converter is determined by first calculating the Kp of the reaction (the chemical equilibrium constant), and then using a formula to find the temperature corresponding to that Kp value, which is the temperature of the converter. My question now is that two reactions occur in the converter; which Kp value should be used to calculate the corresponding reaction temperature? Do we still need to combine the two reactions? Looking forward to your reply. Thank you!