Hydrogen sulfide gas in the nicotinic acid storage tank
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Everyone: Hydrogen sulfide gas has been detected in the vents at the top of the tank used for storing niacin. What is the process behind this?
What acid production method? How could this happen?
Sulfur is used to produce sulfuric acid; fuming nitric acid is not produced on a large scale. The top of the tanks is repaired due to corrosion, and inspections are carried out before welding work is done – only to find that the hydrogen sulfide levels are extremely high.
It’s not a problem with the production process; there definitely won’t be any such issue； It’s mainly a problem with the testing instruments; they can’t determine the composition of the gases. Using manual analysis solves the issue
It’s not a problem with the production process; there definitely won’t be any such issue； It’s mainly a problem with the testing instruments; they can’t determine the composition of the gases. Using manual analysis solves the issue
Is it the poor atomization effect of the sulfide gun that causes sublimated sulfur to end up in nicotinic acid?
Sulfur produced by the Claus process contains a small amount of hydrogen sulfide, and the sulfur tanks are filled with hydrogen sulfide.
Some experts mentioned above are misleading us; hydrogen sulfide is present in sulfur. How can it still exist at temperatures of over 1,000 degrees in a sulfur incineration furnace? This mechanism is a bit confusing! Hehe
Have you never seen sulfur used to produce acid via sublimation of sulfur?
Hehe, at the high temperatures in a sulfur incinerator, it’s unlikely that hydrogen sulfide, sulfur dioxide, sulfur trioxide, and a large amount of oxygen in the air can coexist!
I agree with your view. The combustion conditions in the incinerator are a slight excess of oxygen to ensure complete combustion, making it impossible for hydrogen sulfide in a negative valence state to be produced. That test result must be incorrect, or there is some interference.