Enhancement of gas desulfurization with hydrated lime at low temperature by the presence of NO2

Bausach, M., Pera-Titus, M., Fité, C., Cunill, F., Izquierdo, J. F., Tejero, J. and Iborra, M. 2005. Enhancement of gas desulfurization with hydrated lime at low temperature by the presence of NO2. Industrial & Engineering Chemistry Research 44 (24) , pp. 9040-9049. 10.1021/ie050713w

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Abstract

The effect of NO2 on the desulfurization reaction of simulated flue gas by Ca(OH)2 was investigated in a fixed-bed reactor at 333−353 K and at relative humidities (RHs) in the range of 30%−70%. NO2 was determined to be a promoter for SO2 uptake, because its retention can be increased up to 200%. The effect of NO2 and O2 concentration on the kinetics of the desulfurization reaction was surveyed and successfully simulated by means of a deactivation model implemented with an inverse shrinking-core model (DM-ISCM). Solid analyses were also performed to identify the reaction products and provide insight into the chemistry of the process.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Chemistry Cardiff Catalysis Institute (CCI)
Publisher:	American Chemical Society
ISSN:	0888-5885
Date of Acceptance:	15 September 2005
Last Modified:	07 Oct 2020 13:00
URI:	https://orca.cardiff.ac.uk/id/eprint/135364

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