Removal of mercury from combustion flue gas by dry control technology
Conference
·
OSTI ID:432166
- Argonne National Lab., IL (United States)
In flue gases from coal-combustion systems, elemental mercury or its chloride form, HgCl{sub 2}, can predominate among the possible mercury species present. Conventional flue-gas cleanup technologies are moderately effective in controlling HgCl{sub 2} but very poor in controlling elemental mercury. Experiments were conducted on the removal of elemental mercury vapor by different types of sorbents, using a fixed-bed adsorption system. Of the many commercial activated carbons evaluated, a sulfur-treated carbon sample gave the best removal performance, with good mercury-sorption capacities. Promising results also were obtained with low-cost minerals after chemical treatment. Inorganic sorbents could potentially be developed into a cost-effective alternative to activated carbons for mercury removal. 6 refs., 4 figs.
- OSTI ID:
- 432166
- Report Number(s):
- CONF-960730--
- Country of Publication:
- United States
- Language:
- English
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