Color of sulfur quench water (heavy reward)
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In the past few days, the quench water discharged from the filter of my sulfur quench tower has been black. After it stays out for a longer period of time, the color of the water improves slightly. I’m not sure what could be causing this Please speak up actively; there will be generous rewards. Welcome everyone
This post was last edited by ylb913 on 2017-1-10 at 21:13; due to operational fluctuations, the quench water became mixed.
1. Is the air supply in the sulfur production section adequate, as carbon deposition may occur； 2. Incomplete hydrogenation – check whether the hydrogen ratio is appropriate.
Is the presence of hydrocarbons in the acidic gas stream relatively severe? Did you check the packing in the quench tower during its maintenance? Control the hydrogen sulfide/sulfur dioxide ratio properly, and perform regular purging of the quench tower
Was it like this all the time or only occasionally? You need to make that clear! If this happens occasionally, it’s possible that what Yu Gong mentioned is the mixing effect caused by operational fluctuations! If this continues, it’s necessary to conduct a thorough investigation from a process perspective!
Do your hydrogenation reactors use online furnace heating? Generally speaking, if the air supply to the online furnace is insufficient, or if there are large fluctuations in the composition of the fuel gas and changes in the air-fuel ratio, this can lead to incomplete combustion of the fuel gas and the formation of carbon particles, which in turn can cause the quench water to turn black. In terms of operational adjustments, on the one hand, the air supply to the heating furnace should be increased to an appropriate level; on the other hand, part of the quench water should be replaced with deionized water, so as to gradually remove the carbon powder that has accumulated in the bed layers and within the system.