Removal of elemental mercury and divalent mercury with ammonium sulfide in smelting gas containing SO2

DOI

10.2991/icseee-15.2016.68How to use a DOI?

Keywords

(NH4)2S, simultaneous removal, Hg0, Hg2+, SO2

Abstract

A set of simulation equipment is set up after the conditions of removing SO2 and heavy metal Hg (Hg0 and Hg2+) has been investigated, the results of the removal technology method of absorption Hg0, Hg2+ in smelting gases containing SO2 with (NH4)2S is tested, and their composition of reaction products and sediment are analyzed with XRD and XPS. Obtained that: when absorption concentration of (NH4)2S are 0.8 mol/L, in pH 7.0-3.0 removal efficiency of Hg0 and SO2 is higher, temperature will affect the absorption of Hg0, when reaction temperature is 30℃ the absorption of Hg0 can be achieved the best. Under these optimum conditions, the removal efficiency of Hg0, Hg2+ and SO2 could reach 89.45%, 99.42% and over 99.99%, the participation of SO2 has a promote consequence on removal of Hg0. The main reaction product is HgS, HgSO4, (NH4)2S2O3.

Copyright

© 2016, 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  - Xueqian Wang
AU  - Jianlin Xiong
AU  - Langlang Wang
AU  - Shudi Yan
PY  - 2016/04
DA  - 2016/04
TI  - Removal of elemental mercury and divalent mercury with ammonium sulfide in smelting gas containing SO2
BT  - Proceedings of the 2015 4th International Conference on Sustainable Energy and Environmental Engineering
PB  - Atlantis Press
SP  - 416
EP  - 422
SN  - 2352-5401
UR  - https://doi.org/10.2991/icseee-15.2016.68
DO  - 10.2991/icseee-15.2016.68
ID  - Wang2016/04
ER  -