pyrolysis

The study investigates the structural and surface changes occurring in carbonate drilling sludge (CDS) of oil-based origin under high-temperature pyrolysis. The main focus is placed on the transformation of the organo-mineral system using IR spectroscopy, as well as on the changes in textural characteristics analyzed by adsorption–pore methods (BET and BJH). It has been established that pyrolysis ensures the complete removal of the organic fraction of the sludge, which is confi rmed by the disappearance of characteristic aliphatic hydrocarbon bands in the IR-spectra.

This article presents the results of the thermal processing of sludge from domestic wastewater under laboratory conditions. The pyrolysis process is carried out in a batch reactor with an original design. Gaseous and liquid forms of hydrocarbon compounds, as well as solid carbonaceous residue, were obtained after processing the sludge in a pyrolytic plant. It is established that during pyrolysis of sludge sewage sludge, the output of the process products depends on the heating rate of the raw material.