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This post was last edited by liaifeng on 2018-7-28 07:35. There are sulfur particles in the water purification heat exchanger of the acidic water stripping tower during production; what could be the cause?
Water itself contains trace amounts of sulfur, and over time, through repeated cycles, this leads to an accumulation
Is the quench water fed into the acidic water stripping unit?
Since you’re not clear about the specific process of your device, it’s hard to determine the source; just saying something random – don’t worry about whether it’s correct or not. Judging from the location, it should be the shell side of the heat exchanger. The shell side is usually used for cold streams, that is, sulfur-containing wastewater. With such an amount of solid sulfur, it must have come from a sulfur processing unit; this sulfur processing unit is related to the stripping unit. There is also liquid from the acidic gas separation tank, water from the bottom of the quench tower, and acidic water from solvent regeneration
Since you’re not clear about the specific process of your device, it’s hard to determine the source; just saying something random – don’t worry about whether it’s correct or not. Judging from the location, it should be the shell side of the heat exchanger. The shell side is usually used for cold streams, that is, sulfur-containing wastewater. With such an amount of solid sulfur, it must have come from a sulfur processing unit; this sulfur processing unit is related to the stripping unit. There is also liquid from the acidic gas separation tank, water from the bottom of the quench tower, and acidic water from solvent regeneration
Check the production operation records to see if there was severe penetration of sulfur dioxide into the quench water system.
It is likely that the hydrogenation reactor does not receive enough hydrogen; sulfur dioxide penetrates through the sulfur and enters the quench water. If there is a problem with the filter, the sulfur-containing quench water is sent to the wastewater treatment system, which leads to this situation……