Activated Illinois coal char for cleaning flue gas from incinerators
- Illinois State Geological Survey, Champaign, IL (United States); and others
Regulations are expected that will impose low emission limits on pollutants emanating from United States incinerators. Flue gas cleaning systems that use activated coke as sorbent are used commercially in Europe to clean flue gas from incinerators processing municipal solid waste, medical waste or specialty chemical waste. The relatively low cost sorbent used in many of these processes, one having a relatively low surface area, is not commercially available in the United States. A 250-kilogram batch of sorbent, made from Colchester (Illinois No. 2 coal), performed well in a pilot scale test on a slip stream of flue gas from a commercial European incinerator using STEAG AG`s a/c/t{trademark} process: 99.7% efficiency for removal of dioxins and furans. Mercury was not detectable after the adsorber. The sorbent`s capacity for sulfur dioxide was almost twice that of the commercial German sorbent currently used. The estimated break-even price for the sorbent is $325/ton when made from Illinois coal in a 80,000 ton/year commercial plant.
- OSTI ID:
- 214760
- Report Number(s):
- CONF-950801--
- Country of Publication:
- United States
- Language:
- English
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