Glycerol, as a crucial industrial raw material, finds extensive use in industries such as food, medicine, and cosmetics. The raw materials for industrial glycerol production primarily come from by-products of biodiesel and oleochemicals. After distillation, condensation, and decolorization, the final product is obtained.

Activated Carbon For Glycerol Decolorization

The current mainstream method for glycerol decolorization is fixed-bed decolorization. In this process, a considerable amount of activated carbon is filled into the decolorization tank. Glycerol enters from the top at a specified temperature and flow rate, gradually passing through the activated carbon bed. The micropores on the activated carbon adsorb impurities in glycerol.

Activated carbon can not only adsorb color substances but also exhibits strong selectivity for different types of pigments. This targeted removal improves the purity of glycerol during the decolorization process.

By using activated carbon for glycerol decolorization, the discharge of harmful substances into wastewater is effectively reduced, significantly lowering the environmental impact.