Title:
FUEL FROM ASH
Document Type and Number:
WIPO Patent Application WO2004055139
Kind Code:
B1
Abstract:
Coal ash, which also consists of fly ash, is a very fine granular solid residue obtained as a by-product of coal combustion. The invention relates to the surprising result that a fuel can be obtained from coal ash. The process involves a pneumatic separation of the coal ash at relatively low temperatures. The coal ash is separated into at least two size fractions. The size fractions obtained by the process of this invention include at least one with lower carbon and another containing increased levels of carbon in the range of 50% by weight and a heating value in the range of 4000 to 6000 Btu/lb.
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Inventors:
BRIDSON OATES DAVID (CA)
VAN SLOTEN ALAN (US)
FAIR JEFFREY (US)
RENFRO TRENT (US)
PLUNK CRAIG (US)
VAN SLOTEN ALAN (US)
FAIR JEFFREY (US)
RENFRO TRENT (US)
PLUNK CRAIG (US)
Application Number:
PCT/CA2003/001932
Publication Date:
September 02, 2004
Filing Date:
December 15, 2003
Export Citation:
Assignee:
LAFARGE CANADA INC (CA)
BRIDSON OATES DAVID (CA)
VAN SLOTEN ALAN (US)
FAIR JEFFREY (US)
RENFRO TRENT (US)
PLUNK CRAIG (US)
BRIDSON OATES DAVID (CA)
VAN SLOTEN ALAN (US)
FAIR JEFFREY (US)
RENFRO TRENT (US)
PLUNK CRAIG (US)
International Classes:
C10L5/00; C10L5/04; C10L5/34; F23G5/02; (IPC1-7): C10L5/00
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