How many types of decolorizing agents are there
According to the principle of decolorization, decolorizing agents can be divided into three categories: flocculation decolorizing agents, oxidation decolorizing agents, and adsorption decolorizing agents.
Flocculant decolorizing agent
Flocculant decolorizer is a quaternary amine cationic polymer compound with various functions such as decolorization, flocculation, and degradation of CODCr.
Adsorption decolorizing agent
Adsorption decolorizing agents are generally activated carbon, clay, or adsorption resin, which directly filter impurities and oxides in the oil through filtration, integrating impurity removal, deodorization, decolorization, and separation, making the blackened oil a light colored and transparent liquid. The acid value and chromaticity of processed diesel meet the national fuel standards.
Oxidative decolorizing agent
Oxidative decolorizing agents use oxidizing substances such as sodium hypochlorite, potassium permanganate, and ozone to destroy colored groups and achieve the goal of removing chromaticity.