Reversible absorption of SO2 with alkyl-anilines: The effects of alkyl-anilines: The effects of alkyl group on aniline and water

Title
Reversible absorption of SO2 with alkyl-anilines: The effects of alkyl-anilines: The effects of alkyl group on aniline and water
Authors
김홍곤이현주이웅조신혜Huyen Thanh Vo제정호
Issue Date
2019-01
Publisher
Journal of industrial and engineering chemistry
Citation
VOL 69-344
Abstract
SO2 absorption behaviours of N,N-dimethylaniline (DMA), N,N-diethylaniline (DEA), N,N-dibutylaniline (DBA), and N-methyldiphenylamine (MDPA) — were investigated in dry and wet conditions. DMA showed the highest SO2 absorption capacity of 1.5 molSO2 molAbsorbent− 1 in dry condition, while DBA showed the highest capacity of 1.75 molSO2 molAbsorbent− 1 in wet condition. Raman analyses revealed that anilines captured SO2 by forming charge transfer complexes in dry condition and the interaction between SO2 and aniline decreased as the steric hindrance of alkyl aniline increased. In contrast, bisulfite-based acid-base salt was formed in the presence of water, and the capacity increased with an increasing basicity of the alkyl aniline.
URI
http://pubs.kist.re.kr/handle/201004/69991
ISSN
1226-086X
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KIST Publication > Article
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