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Desulfurization performance of sulfur dioxide and product characteristics in semi-batch bubble column and foam-bed contactor

Authors
  • Kumar, Avanish1
  • 1 Jaipur National University, Jaipur, 302017, India , Jaipur (India)
Type
Published Article
Journal
Chemical Papers
Publisher
Springer International Publishing
Publication Date
Nov 06, 2019
Volume
74
Issue
8
Pages
2427–2439
Identifiers
DOI: 10.1007/s11696-019-00979-4
Source
Springer Nature
Keywords
License
Yellow

Abstract

Hydrated lime and calcium carbonate slurries were employed for absorption of SO2 from simulated flue gases in semi-batch bubble column and foam-bed slurry reactors. With the bubble column reactor, the maximum value of the transient SO2 removal efficiency obtained was 99.4% with hydrated lime slurry and 97.7% for calcium carbonate slurry.In the foam-bed reactor, the maximum removal efficiencies were found to be 91% with each of Triton X-100 and Tween 80, but 95.2% and 96%, respectively, when calcium carbonate was used as the absorbent.The products obtained from the desulfurization operation were characterized using FT-IR and TGA analyses.Calcium sulfate hemihydrate was obtained for all the combinations of absorbents without and with the surfactant additives except in the case of adding Teepol to the hydrated lime slurry when gypsum was obtained as the FGD product.

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