Document Type
Article
Abstract
Series of gasification tests have been completed in the pilot-scale entrained-flow slagging gasifier at CanmetENERGY using Canadian coals, oil-sand coke, and blends of these fuels to determine if the produced slags are nonhazardous in nature. Solid wastes generated during these tests were analyzed for their trace metals, crystallinity, and toxic constituent leaching tendency in an attempt to provide more insight into the possibility of disposal or by-product use of gasifier-produced solid waste. The gasification tests were performed at conditions representative of commercial gasifiers using a dry-fuel-feed configuration. The lower-volatility elements were found to partition between the slag and process-water solids (PWS) collected after gasification of the oil-sand coke. The less volatile group 1 elements tended to be enriched in both solid streams, whereas the slightly more volatile group 2 elements tended to exhibit higher enrichment in the PWS. Slag samples were found to be inert with regard to their leaching potential, and so these materials can be considered nonhazardous.
First Page
37
Last Page
44
DOI
https://doi.org/10.4177/CCGP-D-11-00011.1
Volume
4
Publication Date
1-1-2012
Recommended Citation
Cousins, A., Hughes, R.W., McCalden, K.J., Lu, D.Y., Anthony, E.J., 2012, Waste Classification of Slag Generated in a Pilot-Scale Entrained-Flow Gasifier. Coal Combustion and Gasification Products 4, 37-44, doi: 10.4177/CCGP-D-11-00011.1
Included in
Bioresource and Agricultural Engineering Commons, Environmental Engineering Commons, Geological Engineering Commons
