Resource-Based Method for Realizing Zero Emission of Sulfur Dioxide from Flue Gas

DOI

10.2991/icsd-17.2017.13How to use a DOI?

Keywords

Desulfurization; Zero emission; Resource utilization; Gypsum products

Abstract

A resource-based method for completely removal of SO₂ from flue gas by utilizing recycling manganese hydroxide (Mn(OH)₂) as an absorbant was proposed, which utilized catalytic oxidation of the manganese in the air on the oxidation of sulfur dioxide to soluble sulfate while removing impurities by filtration to produce high value-added products. Effects of reaction temperature and O₂ concentration on sulfite content and effects of PH value and Mn(OH)₂ content on SO₂ removal efficiency were investigated with a bubbling device to obtained the optimal experimental conditions. The method presented 100% removal efficiency with regenerated absorbent, indicating a relatively thorough desulfurization, sulfur dioxide to achieve zero emissions by recycled Mn(OH)₂ in this system. The sulfite content was very low, under 0.027%, compared with manganese sulfate 10%, which show the main component is sulfate ion, reaching to 99.7%, further for the preparation of high quality gypsum products.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiang-Lian Han
AU  - Xue-Xi Chen
PY  - 2017/07
DA  - 2017/07
TI  - Resource-Based Method for Realizing Zero Emission of Sulfur Dioxide from Flue Gas
BT  - Proceedings of the 3rd 2017 International Conference on Sustainable Development (ICSD 2017)
PB  - Atlantis Press
SP  - 88
EP  - 94
SN  - 2352-5401
UR  - https://doi.org/10.2991/icsd-17.2017.13
DO  - 10.2991/icsd-17.2017.13
ID  - Han2017/07
ER  -