Treatment system and treatment method of catalytic cracking desulfurization waste water

The invention provides a treatment system and treatment method of catalytic cracking desulfurization waste water. The method comprises the following steps: performing concentration treatment on the catalytic cracking desulfurization waste water to obtain concentrated liquid, and performing spray dry...

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Hauptverfasser: SUN HULIANG, WANG SIJUE
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creator SUN HULIANG
WANG SIJUE
description The invention provides a treatment system and treatment method of catalytic cracking desulfurization waste water. The method comprises the following steps: performing concentration treatment on the catalytic cracking desulfurization waste water to obtain concentrated liquid, and performing spray drying on the concentrated liquid under 320 to 380 DEG C to obtain sodium sulfate crystals. The treatment system comprises a concentration unit and a spray drying unit in sequential connection. According to the invention, low-temperature site heat of petrochemical enterprises is mainly utilized to pre-concentrate desulfurization waste water externally discharged in a wet method washing process of a catalytic cracking device; after pre-concentration, the waste water is sprayed into high-temperatureflue gas extracted from a denitration section of a catalytic cracking waste heat boiler; spray drying is performed; salt crystals after spray drying are collected by a bag-type dust remover and are recovered; and the flue gas
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subjects CHEMISTRY
COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM,RUBIDIUM, CAESIUM, OR FRANCIUM
INORGANIC CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Treatment system and treatment method of catalytic cracking desulfurization waste water
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