Development of dry control technology for emissions of Mercury in flue gas
Journal Article
·
· Hazardous Waste and Hazardous Materials
- Argonne National Laboratory, IL (United States)
In flue gases from coal-combustion systems, mercury in either the elemental state or its chloride form (HgCl{sub 2}) can be predominant among all the possible mercury species present; this predominance largely depends on the chlorine-to-mercury ratio in the coal feeds. Conventional flue-gas cleanup technologies are moderately effective in controlling HgCl{sub 2} but are very poor at controlling elemental mercury. Experiments were conducted on the removal of elemental mercury vapor by means of a number of different types of sorbents, using a fixed-bed adsorption system. Of the four commercial activated carbons evaluated, the sulfur-treated carbon sample gives the best removal performance, with good mercury-sorption capacities. Promising removal results also have been obtained with low-cost minerals after chemical treatments. The inorganic sorbents could potentially be developed into a cost-effective alternative to activated carbons for mercury removal. 12 refs., 11 figs., 1 tab.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 433489
- Journal Information:
- Hazardous Waste and Hazardous Materials, Journal Name: Hazardous Waste and Hazardous Materials Journal Issue: 1 Vol. 13; ISSN 0882-5696; ISSN HWHME2
- Country of Publication:
- United States
- Language:
- English
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