Emission reduction through process integration and exploration of alternatives for sustainable clinker manufacturing

• Published in: International journal of environmental science and technology (Tehran) Vol. 20; no. 12; pp. 13329 - 13346
• Main Authors: Verma, Y. K., Ghime, D., Mazumdar, B., Ghosh, P.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-12-2023
• Subjects: Aquatic Pollution; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Science and Engineering; Original Paper; Soil Science & Conservation; Waste Water Technology; Water Management; Water Pollution Control; Climate change; Air pollution; Clinker manufacturing; Energy efficiency; Greenhouse gas reduction
• ISSN: 1735-1472; 1735-2630
• DOI: 10.1007/s13762-023-04754-7

The cement industry is undeniably critical for the global economy. However, they are also the largest energy consumers in the world. The clinker manufacturing process causes gaseous emissions like nitrogen oxides, sulfur dioxide, carbon dioxide and particulate matter. There is scope for various technologies to be used in the cement manufacturing process for reducing emissions and energy consumption. This paper presents an analysis of various emission reduction approaches using alternative techniques/raw materials, energy saving (thermal and electrical) methods, process optimization/modifications, carbon capture and storage. However, financial and technical challenges remain significant barriers against sustainability initiatives in the clinker manufacturing process. Practical and feasible methods were applied to reduce nitrogen oxides, carbon dioxide and particulate matter emissions during the clinker manufacturing process. This study also shows the application of pinch technology for more economical energy usage. This study was conducted in the premises of Emami Cement Limited, Balodabazar (Chhattisgarh State), India.