Influences of Waste Iron Residue on Combustion Efficiency and Polycyclic Aromatic Hydrocarbons Release during Coal Catalytic Combustion

Linbo Qin; Yajie Zhang; Jun Han; Wangsheng Chen

doi:10.4209/aaqr.2015.04.0227

Influences of Waste Iron Residue on Combustion Efficiency and Polycyclic Aromatic Hydrocarbons Release during Coal Catalytic Combustion

Linbo Qin, Yajie Zhang, Jun Han , Wangsheng Chen

School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China

Received: April 24, 2015
Revised: July 27, 2015
Accepted: September 3, 2015
Download Citation: ||https://doi.org/10.4209/aaqr.2015.04.0227

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Cite this article:
Qin, L., Zhang, Y., Han, J. and Chen, W. (2015). Influences of Waste Iron Residue on Combustion Efficiency and Polycyclic Aromatic Hydrocarbons Release during Coal Catalytic Combustion. Aerosol Air Qual. Res. 15: 2720-2729. https://doi.org/10.4209/aaqr.2015.04.0227

HIGHLIGHTS

Adding 0.5% waste iron residue, the coal combustion efficiency was enhanced.
Adding 0.5% waste iron residue, the total PAHs concentration was decreased.
The maximum removal of the total PAHs TEQ was 45.24% by waste iron residue.

ABSTRACT

Effects of adding waste iron residue on the combustion efficiency and the removal of Polycyclic Aromatic Hydrocarbons (PAHs) during coal combustion were investigated in a laboratory scaled drop tube furnace at a temperature range of 950–1250°C. The experimental results indicated that adding 0.5% waste iron residue had a good performance on enhancing combustion efficiency during coal combustion. Meanwhile, the addition of 0.5% waste iron residue was also favor for reducing PAHs emission as well as PAHs TEQ concentrations during coal combustion at a temperatures range of 950–1250°C. With adding 0.5% waste iron residue (WIR), the coal combustion efficiency was enhanced by 6.15%, and the total PAHs concentration in flue gas was decreased by 44.94% at 1150°C. The maximum removal of the total PAHs TEQ concentration was as high as 45.24% at 1250°C.

Keywords: Coal; Catalyst; Combustion; PAHs; Removal efficiency