Tail gas ammonium sulfate crystals
Thread Content
In addition to the process gas and fuel gas, the tail furnace of this project also receives two streams of acidic gas, both of which contain ammonia. During maintenance, a large amount of sulfuric acid an was found in the terminal heat exchanger. Are there any good treatment methods available without changing the process parameters (the design temperature of the exhaust furnace is 800)? If the process is changed, how should it be handled? Thank you all, experts! ! ! !
The sulfur furnace for ammonia combustion requires at least 1250 degrees, and this applies to the operating cycle of the sulfur recovery unit. No relevant literature has been found for even lower temperatures.
Mm-hmm. So what’s the solution now? Are there any good methods?
As mentioned on the 2nd floor, amino acid-containing gases need to be burned at a temperature of at least 1250 degrees; there are also requirements regarding the burners, and it’s definitely not suitable for combustion in an exhaust gas furnace. What was the reason for sending these two streams of acidic gas to the exhaust incinerator for combustion in the first place? Where does it enter from the exhaust furnace?
Is it possible to introduce ammonia-containing gas into the reaction furnace? If it is an ammonia burning burner, this problem can be solved.
Normally, the temperature of the sulfur control furnace is kept below 1250 as well; will transferring it there cause sulfate crystallization in the upstream system?
What is your ammonia content? Is the sulfur production furnace designed for ammonia combustion?
I haven’t analyzed the ammonia content; I’m just a junior employee, and I’m not very familiar with the burners in the sulfur production furnace. I just hope to understand how to address these issues.
The process gas shares one inlet. It was probably introduced just to burn the hydrocarbons and hydrogen sulfide in the acidic gases.
To solve the problem, it is recommended to first understand the background and related principles. The suggestions on the 2nd and 5th floors are both very objective.