Renovation of diesel fractionation tower top sewage
Thread Content
The COD of diesel oily sewage has been high for a long time, often exceeding 500 mg/l, which seriously affects the compliance of the device outlet and the acceptance of clean production. Its main source is the stripping condensate at the top of the fractionation tower. In order to solve the problem of COD exceeding the standard, it is recommended to transfer this part of the condensate water to the reaction water injection tank V2018 as reaction water injection.
The circulating compressor inlet liquid separation tank cuts liquid to the desulfurization solvent dispensing tank. The removed liquid hydrogen sulfide reaches about 20,000 ppm, and the desulfurization solvent dispensing tank is open. During the liquid cutting, a large amount of hydrogen sulfide leaks into the atmosphere, seriously threatening personal safety and causing environmental pollution. In order to solve this problem, it is recommended to change the cutting liquid to the desulfurization solvent flash tank and the flare system. The normal cutting liquid is to the desulfurization solvent flash tank, and the abnormal cutting liquid is cut to the flare system to solve the problem of hydrogen sulfide overflowing into the atmosphere.