CARBON MULTICHANNEL BLOCKS FOR AIR PURIFICATION

Abstract

This study presents an approach to the development and investigation of multichannel filtering blocks based on carbon-silicon materials derived from rice husk. The application of thermochemical carbonization methods and physical activation made it possible to obtain a material with a well-developed macro- and microporous structure, a high specific surface area (up to 551 m²/g), and a significant pore volume. Experimentally, the optimal regimes of heat treatment, extrusion parameters, and alkaline desilication were established, ensuring the formation of stable carbon blocks with a regular multichannel structure. An analysis of the aerodynamic and sorption characteristics of the filters was carried out, including dust-holding capacity, flow resistance, and the efficiency of capturing particles of various dispersities. The obtained results confirm the promising potential of the developed blocks for use in industrial and environmental air filtration systems, particularly under high-temperature and aggressive conditions. The scientific novelty of the study lies in the development and experimental validation of a technology for producing multichannel carbon-silicon filtering blocks from rice husk, with adjustable porosity and high air purification efficiency.