Numerical Simulation of Co-Firing of Biomass-Sulfide Concentrate and Pollutants Formation in the Flash Furnace Copper Smelting

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RAJABI N.; MOGHIMAN M.

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Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:12 Page(s): 2927-2934

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Title

Numerical Simulation of Co-Firing of Biomass-Sulfide Concentrate and Pollutants Formation in the Flash Furnace Copper Smelting

Author(s)

RAJABI N. | MOGHIMAN M. | Issue Writer Certificate

Keywords

BiomassQ1

Flash FurnaceQ1

Co-firingQ1

PollutantsQ1

CombustionQ2

Abstract

Co-firing of Biomass and fossil fuels in industrial furnaces is a suitable way to reduce the environmental impact from human activities, with acceptable investment. In this paper, the results of numerical simulation Co-firing of sulfide concentrates and three auxiliary fuels including gasoil, kerosene and sawdust Biomass are compared in the Flash Furnace copper smelting. For modeling of turbulent flow and Combustion, RNG, k-ε model and probability density function model (pdf) have been used, respectively. This study has been carried out to investigate the furnace temperature and Combustion Pollutants distribution. The numerical simulation results show that the flame temperature resulting from the Combustion of diesel fuel and sawdust as auxiliary fuel is the highest and lowest, respectively. In Biomass Combustion, despite that the flame temperature is low, but the NOx mass fraction increases because there is nitrogen in the sawdust chemical composition. Also in sawdust Combustion that the oxygen content is high, the SO2 and SO3 sulfur Pollutants increase in the high temperatures regions of the furnace and the lower temperature of the auxiliary fuel burner, respectively. Because SO2 is formed at high temperatures (> 1273K) and oxygen-rich and SO3 species is produced at relatively low temperatures with excess oxygen. The amount of CO emissions in sawdust Combustion is much lower than the amount of Combustion of diesel and oil.

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APA: Copy

RAJABI, N., & MOGHIMAN, M.. (2019). Numerical Simulation of Co-Firing of Biomass-Sulfide Concentrate and Pollutants Formation in the Flash Furnace Copper Smelting. MODARES MECHANICAL ENGINEERING, 19(12 ), 2927-2934. SID. https://sid.ir/paper/179131/en

Vancouver: Copy

RAJABI N., MOGHIMAN M.. Numerical Simulation of Co-Firing of Biomass-Sulfide Concentrate and Pollutants Formation in the Flash Furnace Copper Smelting. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(12 ):2927-2934. Available from: https://sid.ir/paper/179131/en

IEEE: Copy

N. RAJABI, and M. MOGHIMAN, “Numerical Simulation of Co-Firing of Biomass-Sulfide Concentrate and Pollutants Formation in the Flash Furnace Copper Smelting,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 12 , pp. 2927–2934, 2019, [Online]. Available: https://sid.ir/paper/179131/en

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