CFB evaluation of high-ash Ukrainian anthracite coal

Conference · Tue Dec 31 04:00:00 EST 1996

OSTI ID:504614

Perna, M A; Fuller, T A ^[1]; Reuther, J ^[2]; Belin, F; Maryamchik, M; Maystrenko, A

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1. Babcock and Wilcox, Alliance, OH (United States). Research and Development Div.
2. Dept. of Energy, Pittsburgh, PA (United States). Pittsburgh Energy Technology Center

High-ash Ukrainian anthracite coal (called schtib) was evaluated to determine its impact on design for commercial-scale circulating fluidized bed (CFB) boilers. The project was performed to support the US/Ukraine Clean Coal Task Force efforts to upgrade Ukraine`s coal-fired power plants. The project was sponsored by the US Agency for International Development (USAID) through the US Department of Energy, Pittsburgh Energy Technology Center (DOE-PETC). The test work was performed at the Institute of Energy Savings Problems (IESP) in Kiev, Ukraine and at the Babcock and Wilcox (B and W) Research Center in Alliance, Ohio. Parametric tests were performed on small-scale and pilot-scale CFB facilities to examine the effects of operating parameters and fuel particle size distribution on combustion and emissions performance. Test results indicate that with fuel crushed to minus 1/8 inches and an average operating temperature of 1,650 F, stable combustion without support fuel and low unburned carbon loss (<3%) can be achieved within a 50--100% load range. Gaseous emissions of sulfur dioxide were successfully controlled to about 90% sulfur removal by adding sorbent at a Ca/S ratio of about 1.9. Nitrogen oxide and carbon monoxide emissions were maintained below 0.24 lbs/MBtu and 0.18 lbs/MBtu, respectively during the tests. The test results indicated that B and W`s CFB boilers can be used to fire schtib in an efficient and environmentally acceptable manner and provided input for the refinement of the CFB design for this fuel CFB boilers of 60 Mwe and 200 Mwe capacity for repowering of Ukrainian power plants are being jointly developed by B and W and Ukrainian organizations.

• OSTI ID: 504614
• Report Number(s): CONF-960954--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
AIR POLLUTION CONTROL
ANTHRACITE
CARBON MONOXIDE
COMBUSTION PROPERTIES
DESIGN
FLUIDIZED BED BOILERS
NITROGEN OXIDES
OPERATION
PARTICLE SIZE
SULFUR DIOXIDE