Synergy of Secondary Energy Resource Utilization and Hydrogen Technology for Reducing the Carbon Footprint of Industrial Thermal Units

ENG: The article presents research results focused on improving energy efficiency and reducing the carbon footprint during pellet burning in rotary kilns. The study includes experimental kiln production, development of its energy balance, analysis of energy loss components, assessment of renewable and non-renewable energy losses, and determination of greenhouse gas emissions. The influence of operating parameters on kiln efficiency was examined, and their optimal values were identified. The thermal potential of secondary energy resources at the pellet burning plant was evaluated. A waste-heat utilization scheme for municipal and domestic heating and hot water supply was proposed. The study also establishes dependencies demonstrating the potential for reducing CO2 emissions when substituting natural gas with a mixture containing reducing hydrogen. Research results on lowering the carbon footprint by burning environmentally neutral biomass are presented, along with practical recommendations. The scientific and applied outcomes of the work enable the development of measures aimed at decarbonization and enhancing the efficiency of rotary kilns used for pellet burning in mining and metallurgical enterprises.