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Abstract
The manufacturing process of coke in steel plants, emits SOx and NOx which contributes around 30% of the total environmental pollution. The environmental norms from the Central Pollution Control Board of India may implement stringent norms on steel plants for their emission into its environment. In the present study, fact sage software was used for stimulating and quantifying the emissions like SOX and NOX in volume % by incorporating different possible operating parameters such as – its composition, suction pressure, flow rate, and fuel-to-air ratio. The simulation results were also compared with the plant data. The result showed peak flame temperature increased and also shifted toward a lower mixed gas-to-air-to-fuel ratio, indicating the combustion product at different mixed gas-to-air ratios. At an increased % of coke oven gas in mixed gas at a higher value of the mixed gas to air ratio, the percentage volume of COG was reduced. The new aspect of this work involves using a higher ratio of mixed gas to air, increasing the proportion of COG (carbonaceous gas) in the mixture, reducing the volume of CO2 produced, and increasing the formation of CO and SO2, indicating incomplete burning of hydrocarbons. However, when the COG decreases and the ratio of mixed gas to air increases, it leads to higher emissions of NOX. In the study the CEMS data matches with simulated results.
Authors contributions
Gaurav Kumar contributed to the design and implementation of the research, to the analysis of the results and the writing of the manuscript.
Amit Kumar Gupta contributed to the design and implementation of the research, to the analysis of the results and to the writing of the manuscript.
Competing interests
The authors declare that they have no Conflict of Interest.
Consent to participate
Not Applicable.
Consent to publish
Not Applicable.
Disclosure statement
No potential conflict of interest was reported by the authors.
Ethical approval
Not Applicable.
Data availability statement
Data sharing is not applicable to this article as no datasets were generated or analyzed during the current study.
Additional information
Funding
Notes on contributors
Gaurav Kumar
Gaurav Kumar, is a PhD, candidate in the chemical Engineering department in Birla Institute of Technology Mesra Ranchi. He has a B tech degree in chemical Engineering (2015) and Mtech degree in chemical Engineering specialization in (Plant design) (2020). His research involves the challenges in reducing Nox and Sox and chemical upcycling of waste plastic. He currently works as a research scholar in BIT MESRA in Ranchi Jharkhand.
Amit Kumar Gupta
Amit Kumar Gupta, has master degree from IIT Bombay in chemical engineering (2003) and Ph.D from IIT Delhi in chemical engineering (2010). He is currently working as associate professor in chemical engineering department of BIT Sindri Dhanbad. He has experience in chemical engineering, with emphasis on computational fluid mechanics, water pollution, air pollution and interfacial science.