Reasons for the low furnace temperature in the sulfur production route
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After the sulfur production furnace was expanded, the furnace temperature is no longer sufficient to meet the requirements for ammonia combustion; the current temperature is around 1000 degrees. Increasing the air supply could help raise the temperature, but with more air supplied, the exhaust gas treatment becomes more intensive, causing the reactor temperature to rise too high, which in turn damages the ratio meter and makes it impossible to obtain accurate readings. Seeking help?
Raising the preheating temperature, cleaning the burner, or changing the acidic gases to use those from the middle furnace chamber – none of these options work; in that case, consider adding some gas for supplementary combustion.
These have all been used; they can improve the air quality to a certain extent, but hydrogen is not evident in the exhaust gas treatment process
Did the raw material composition change before and after the expansion of the sulfur production furnace? Could you provide the current percentage composition of the materials fed into the burner (% NH3, H2S, etc.), as well as the preheating temperatures for both air and the raw materials?
What is the processing load of your equipment? What is the designed production capacity? What will the production capacity be after the expansion?
Add steam heater to acidic gas line
If there is a concentration line for low-temperature conditions, appropriate concentration can also increase the temperature
Clean the acidic gas diversion section for mid-section combustion; first, ensure the temperature at the burner where ammonia is burned. The result of excessive air supply is a relatively significant increase in hydrogen consumption in the rear hydrogenation reactor.
Changing to pure oxygen isn’t something that can be done simply by making a change; certain supporting measures are required for it to function properly!
Ours is the same; we don’t know what to do about it, as the value stays above 1000 all the time