Oxidation Processes in the Firing of Porous Filler Based on Oil Production Wastes and Intershale Clay

Abstract

The object of this study is a porous material obtained from the main pollutants of the environment based on intershale clay and oil production wastes without using natural conventional materials. Combustion processes occurring when firing ceramic materials are of great importance, since they mainly determine the operational properties of products. Interest in the chemistry and mechanism of carbon combustion in a porous filler is primarily associated with the use of claydite–concrete wall panels, which in Russia have become the basis for popular industrial construction. Porous filler has been obtained based on production wastes and intershale clay without using natural conventional materials. Combustion processes that take place during the firing of the filler have been studied. The studied oil production wastes have an increased calorific value; therefore, they are advisable to be also used as burnable additives for the production of porous filler. It has been shown that heat treatment of the porous filler in the temperature range of 400–600°C removes most of the volatile substances from the product. In the temperature range of 1050–1100°C, iron reduction is significantly accelerated. At a firing temperature of 1100°C, organic compounds are almost absent in the fired ceramic material.