Study on a Novel Oxidation Process for Removing Arsenic from Flue Gas

The experiments of arsenic removal from flue gas were investigated at a lab-scale bubbling reactor with H2O2 solution to develop a novel oxidation process. The effects of various experimental parameters, such as H2O2 concentration, initial solution pH, reaction temperature, and flue gas components (...

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Bibliographic Details
Published in:Energy & fuels 2017-01, Vol.31 (1), p.693-698
Main Authors: Zhao, Yi, Qiu, Wen, Yang, Chunyan, Wang, Jianan
Format: Article
Language:English
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Summary:The experiments of arsenic removal from flue gas were investigated at a lab-scale bubbling reactor with H2O2 solution to develop a novel oxidation process. The effects of various experimental parameters, such as H2O2 concentration, initial solution pH, reaction temperature, and flue gas components (O2, CO2, SO2, and NO) were systematically investigated, and the average removal efficiency was found to be 92.6%, under the obtained optimal conditions, in which H2O2 concentration was 0.2 mol/L, solution pH was 5.0, and reaction temperature was 50 °C. Meanwhile, the mechanism of the reaction was proposed based on characterizations of the removed products by high performance liquid chromatography coupled to hydride generation atomic fluorescence spectrometry, atomic fluorescence spectrometry as well as a review of the literature.
ISSN:0887-0624
1520-5029
DOI:10.1021/acs.energyfuels.6b01724