Impact of coal properties on coal reburning: Preliminary pilot scale studies

Book · Sat Dec 31 04:00:00 EST 1994

OSTI ID:43196

Moyeda, D K; Pont, J N; Payne, R ^[1]

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1. Energy and Environmental Research Corp., Irvine, CA (United States)

Reburning is a NO{sub x} reduction technique which is gaining wide interest for the control of NO{sub x} emissions from utility boilers. Unlike alternative control techniques, such as low NO{sub x} burners and selective non-catalytic reduction, reburning has been demonstrated to achieve high levels of control with no measurable by-product emissions. Any hydrocarbon fuel can be used in the reburning process; however, a critical issue in the use of coal as a reburning fuel is the impact of fuel properties on NO{sub x} reduction and boiler performance. This paper describes the preliminary results of an experimental study of the parameters influencing the coal reburning process. The goal of the project is to identify coal characteristics that will result in low NO{sub x} emissions, low unburned carbon levels, and will have minimal impact on the performance of utility boilers. To accomplish this, selected coals were evaluated in a small pilot-scale furnace over a range of operating conditions simulating full-scale utility boilers. The preliminary test results reported here provide insight into the impacts of coal type and properties on the reburning process.

• OSTI ID: 43196
• Report Number(s): CONF-940930--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
20 FOSSIL-FUELED POWER PLANTS
AIR POLLUTION CONTROL
BITUMINOUS COAL
CALORIFIC VALUE
CANADA
CHEMICAL PROPERTIES
COCOMBUSTION
COMBUSTION PROPERTIES
EXPERIMENTAL DATA
FOSSIL-FUEL POWER PLANTS
LIGNITE
NITROGEN OXIDES
SUBBITUMINOUS COAL
VOLATILE MATTER