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Simultaneous removal of PCDD/Fs and NOx from the flue gas of a municipal solid waste incinerator with a pilot plant

Author:
Liu, Xiaolong, Wang, Jian, Wang, Xue, Zhu, Tingyu
Source:
Chemosphere 2015 v.133 pp. 90-96
ISSN:
0045-6535
Subject:
emissions, flue gas, incinerators, municipal solid waste, nitrogen oxides, polychlorinated dibenzodioxins, polychlorinated dibenzofurans, temperature
Abstract:
The pilot-scale plant on the simultaneous removal of PCDD/Fs and NOx from the flue gas of a municipal solid waste incinerator is presented. In order to research the influence of temperature on the catalytic decomposition of PCDD/Fs and the selective catalytic reduction of NOx, the experiments were performed at 220°C, 260°C, and 300°C, and the congener profiles of PCDD/Fs for the samples collected at the inlet and outlet were illustrated. Noteworthy, the detailed congener distributions of PCDD/Fs in the gas-phase and particle-phase of the inlet and 300-outlet (decomposition temperature=300°C) samples are presented, and the removal efficiencies ηg-I-TEQ and ηp-I-TEQ reached to 94.94% and 99.67%, respectively. The effect of the SCR process on the removal of PCDD/Fs was also studied at a relatively low temperature of 220°C. Additionally, the NOx emissions and the SCR efficiencies were investigated.
Agid:
5454390