Abstract
Arsenic species, which are inevitable components in flue gas from the coal combustion process, will result in severe deactivation of selective catalytic reduction (SCR) catalysts. In this paper, a novel method is proposed to regenerate the arsenic-poisoned commercial V2O5-MoO3/TiO2 catalyst collected from coal-fired power plants, including ammonia washing, H2 reduction, and air calcination. Activity tests indicated that the proposed method could recover the catalyst activity more than 96% of the fresh catalyst. Furthermore, detailed characterizations results indicated that this regeneration method could not only effectively remove the arsenic species, but also recover the active constituents of the catalysts to a considerable level. The proposed method offers a feasible strategy for the regeneration of poisoned commercial SCR catalysts and can effectively reduce the total denitrification cost for coal-fired power plants.
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07 June 2019
The article Regeneration of commercial SCR catalyst deactivated by arsenic poisoning in coal-fired power plants, written by Qiang Lu*,†, Zulfiqar Ali*, Hao Tang*, Tahir Iqbal*, Zulqarnain Arain**, Min-shu Cui*, Ding-jia Liu*, Wen-yan Li*, and Yong-ping Yang*, was originally published on the publisher’s internet portal (currently SPringerLink) on 08 February 2019 with misprinted DOI number, 10.1007/s11814-018-0227-9, due to the technical error from converting manuscript file from Microsoft Word to PDF. The correct DOI number for the article is 10.1007/s11814-019-0314-y.
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Lu, Q., Ali, Z., Tang, H. et al. Regeneration of commercial SCR catalyst deactivated by arsenic poisoning in coal-fired power plants. Korean J. Chem. Eng. 36, 377–384 (2019). https://doi.org/10.1007/s11814-018-0227-9
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DOI: https://doi.org/10.1007/s11814-018-0227-9