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RE: Sulfur Pit Fires and sulfur pumps

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#5845

Jeanne rameau
Participant

In your pits do you have any air or n2 sweep? Are your vapors routed directly to the incinerator?

With no pit instrumentation (Temp, Pressure, level) you are a bit in the dark. If you are running your pits dry, that can trigger fire by sulfur dropping down in the pit and causing a static charge.

Your jacketing steam? What pressure do you run at? 50#? 70#? If you had a TI, that would be helpful in checking if your pumps are seizing from running your jacketingsteam at the wrong temperature. Without a TI, take a heat gun and perform a temperature survey?

When you take your pumps out of service for maintenance, do you follow a warm up procedure so it doesn’t seize up? I would work with your sulfur pump vendor and double check if you are following the correct reliability practices.

With a fire in the pit, it would make sense that you would have high S02 numbers at your incinerator(burning sulfur = S02) and then after introducing the snuffing steam, your numbers go back down. Your not alone though, a lot of sulfur folks have had experiences like this.

Here is a link to what I think is a pretty good website:

http://www.sulphuric-acid.com

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