In 2021, UKRGRAFIT successfully implemented an innovative regenerative-thermal oxidation (RTO) system, which has proven to be an optimal solution for treating off-gases from calciners in compliance with the EU Best Available Techniques Reference Document for the Non-Ferrous Metal Industries. This state-of-the-art gas cleaning equipment effectively reduces the levels of tar and carbon monoxide in exhaust gases.

The project was executed by a renowned global leader specializing in turnkey RTO systems for the electrode and cathode industries.

The regenerative-thermal oxidation plant comprises four sections filled with ceramic elements and a valve system that redistributes the gas flow among the sections. This design ensures a balanced and cyclical utilization of all sections of the RTO. The equipment operates by facilitating the hydrocarbon oxidation process at extremely high temperatures ranging from 800 to 1100 °C. In this controlled environment, the harmful hydrocarbon components react with oxygen to produce harmless compounds, namely carbon dioxide and water vapor. These byproducts are non-toxic and odorless.

Furthermore, the equipment can operate without the need for natural gas, offering additional efficiency and cost-saving benefits.