Reasons for high suspended sulfur in alkali desulfurization
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This post was last edited by angryant on 2015-10-6 at 11:28. During desulfurization operation, the solution temperature is 30 degrees, the total alkalinity is around 4.5–5.0, PDS is 75–85 ppm, and the hydrogen sulfide level after the tower is below 30. Sulfur paste is produced using a centrifuge; the amount of sulfur paste obtained per day is not large. Tests show that the suspended sulfur content is above 2000 mg/L. I would like to know the reasons for this high level of suspended sulfur and the methods to address it
It’s already good enough; we’re not even as good
The amount of suspended sulfur at 2g is on the high side. 1. First, is your analysis method based on titration or gravimetry? 2. Not much sulfur paste is produced – what about the foam? 3. Why is the temperature of your solution kept so low? ? ? Communication QQ: 1123267744
Tar and naphthalene present in gas can reduce the activity of the catalyst in the solution; it is necessary to strictly control the level of tar in the gas to below 50 mg/m3 and that of naphthalene to below 500 mg/m3, in order to maintain good catalyst activity
Foam flotation is not working well; check the color of the desulfurization liquid (if it is dark), and adjust the operation of your electrostatic tar catcher to ensure that the concentration of coal tar dust in the gas before the desulfurization tower remains below 20 mg/m3
Centrifuges – I’m an expert. Click on my profile picture