Conversion of Dagang Vacuum Residue into Oxygen-Containing Organic Compounds by Photo-Oxidation with H2O2 over TiO2

الملخص EN

The photocatalytic depolymerization of Dagang vacuum residue (DVR) was carried out with H2O2 over TiO2 in a photochemical reactor.

Most of the organic matter in DVR was converted into oxygen-containing organic compounds.

The yields of carboxylic acids, oxalates, epoxy compounds, and hydroxyl compounds from DVR oxidation are 40.6%, 36.4%, 17.86%, and 13.5%, respectively.

In addition, the oxidation causes significant decrease in viscosity and chromaticity of DVR.

The related reaction mechanisms are discussed according to the experimental results.