Ammonia burning nozzle for sulfur recovery
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The ammonia content in the ammonia gas drawn from the side stream of the acidic water stripping tower is approximately 50%. Under such conditions, can imported or domestically produced burners meet the requirements for burning ammonia?
Although there are nozzle manufacturers in Luoyang, China, capable of producing ammonia-burning nozzles, the actual performance of these nozzles does not seem very good. Therefore, it is recommended to use foreign products, such as those from Duke
Yes, Duke and Aecometric are definitely better, but it is understood that even for imported versions there are restrictions on the ammonia content; therefore I would like to know at what ammonia level it is possible to use them for burning.
When the ammonia content in the mixed acidic gas is less than 15%, and the temperature of the sulfur production combustion furnace is maintained at 1300°C–1350°C, ammonia can still be decomposed. Once the ammonia content in the mixed acidic gas exceeds 15%, no matter how high the temperature of the sulfur production furnace is, it is not possible to ensure complete decomposition of ammonia.
In fact, the development of sulfur production burners in China over the past few years has been quite good, and their performance is also satisfactory
There has indeed been significant progress in recent years, but it’s not an ammonia-burning burner.
In addition to the acid gas from the wastewater stripping unit, the acid gas that enters the combustion furnace also includes the acid gas generated during amine regeneration; therefore, after these two types of gas are mixed together, the acidity level will definitely not be so high. The generally accepted upper limit for ammonia combustion is around 25%; above that, complete combustion becomes somewhat difficult. As for burners, it is recommended to choose imported ones. Especially in cases with a high ammonia content.
This post was last edited by fpiliuwei on 2020-7-20 at 16:20. The ammonia content is around 50%, which exceeds the limit set by Duke for using sulfur production furnaces to treat NH3 (the general requirement is that the NH3 content in acidic gases should not exceed 28%). In this case, it cannot be solved using a sulfur production furnace + special ammonia burning burner. If the acidic gases are all of this type of 50% ammonia-containing off-gas, with a steady composition and little variation, it is best to use Duke’s specialized ammonia burning furnace to handle them. The NH3 content range processed in ammonia burning furnaces is from 30% to 100%, and pure NH3 can also be processed. Currently, both Changqing in China and CNOOC in Huizhou have one operating unit each. If further technical details are needed, we can discuss them later.
I’m from Ruichang. The ammonia-burning burners have been used in Sinopec, CNPC, and other chemical industries, and they are operating well at present with no technical issues. If necessary, you can contact 18937999353.