Low catalyst temperature in section 2: solutions.
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Has the activity of the two catalysts in my workshop been low lately? ? Section 1: inlet 430, outlet 530; Section 2: inlet 420, outlet 430. What’s the problem? ?
Is the conversion gas concentration high? A low exit temperature on the first layer will naturally affect the inlet temperature on the second layer.
Check whether the inlet and outlet temperatures of Stage 1 are normal. If they are, try adjusting to increase the inlet temperature of Stage 2. It is recommended to verify that the temperature sensor provides accurate readings.
Is there something wrong with the thermometer? Obviously, there’s no heat conversion. How concentrated is the gas? What is the air volume? In that case, the conversion rate is concerning
It is recommended to first check the resistance of the second-stage inlet heat exchanger, as the temperature at the second-stage inlet is low.
Check again the resistance of the second-stage catalyst to see if there is any damage to the grate plates.
Provide more detailed operational data, so that everyone doesn’t have to guess, and it will also help in identifying the cause for you.
What is the process? The temperature at the second-stage inlet is 420 degrees, which is relatively low. In our plant, sulfuric acid is produced with a temperature of 470 degrees at the second-stage inlet and 520 degrees at the second-stage outlet