How to determine the effectiveness of ammonia burning?
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The presence of ammonia severely affects the smooth operation of the system. How can one determine the effectiveness of ammonia combustion, and what is the minimum required temperature for the entire furnace?
Ammonia begins to burn at 1250 degrees, and only above 1320 degrees can nearly complete combustion of ammonia be ensured (with the ammonia content in the total acid gas not exceeding the specified limit)
Check the burner pressure. If there is a significant change in the burner pressure before and after ammonia combustion, it indicates that salt deposition has caused blockages in the system due to incomplete ammonia combustion.
I generally agree with the view expressed on the second floor: when the furnace temperature is kept above 1300 degrees, ammonia is completely decomposed.
Come to learn*. I personally find it hard to judge. There are many reasons for the increase in burner pressure and blockages
Strictly speaking, it is possible to determine whether ammonia combustion has occurred completely by examining the residual ammonia content in the process gas; however, analyzing the residual ammonia content in the process gas is quite difficult. Therefore, it is usually possible to make such a judgment only by checking factors such as whether the system pressure drop increases. The efficiency of ammonia combustion depends not only on the temperature of the reaction furnace but also on the design of the burner. Generally, for burners with a strong mixing structure, the temperature needs to reach at least 1250°C, while for burners with a premixing structure, the temperature should be above 1300°C.