Effect of SO/sup 2/ emission requirements on fluidized-bed combustion systems: preliminary technical/economic assessment. Report for August 1977-January 1978

Technical Report · Tue Aug 01 04:00:00 EDT 1978

OSTI ID:6345235

Newby, R A; Ulerich, N H; O'Neill, E P; Ciliberti, D F; Keairns, D L

The report gives results of a preliminary technical/economic evaluation to project the impact of SO/sup 2/'' control requirements (up to 90% control) on the capital and energy costs of atmospheric-pressure and pressurized fluidized-bed combustion (AFBC and PFBC) power plants. Ability of AFBC and PFBC to reduce emissions of particulates and NOx is also considered. Performance and economic projections are presented, both for the current New Source Performance Standards and for more stringent controls; the AFBC and PFBC projections are compared with equivalent projections for conventional boilers with flue gas desulfurization. The projections show that AFBC and PFBC plants can achieve SO/sup 2/ control up to at least 90%, and still remain economically competitive with conventional boilers using scrubbers. However, FBC plant design and operating parameters are critical to the achievement of high levels of SO/sup 2/ control at competitive energy costs. In particular, increased gas residence time in the bed, and reduced sorbent particle size, are important in effective attainment of high levels of SO/sup 2/ control. The projections of FBC performance at 90% SO2 removal must be confirmed experimentally on FBC units large enough to be representative of commercial-scale combustors.

• Research Organization: Westinghouse Research and Development Center, Pittsburgh, PA (USA)
• OSTI ID: 6345235
• Report Number(s): PB-286971
• Country of Publication: United States
• Language: English

Related Subjects

20 FOSSIL-FUELED POWER PLANTS
200202* -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
AIR POLLUTION CONTROL
BOILERS
BURNERS
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTORS
COST
DESULFURIZATION
FLUE GAS
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
FOSSIL-FUEL POWER PLANTS
GASEOUS WASTES
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE
POLLUTION CONTROL
POWER PLANTS
TECHNOLOGY ASSESSMENT
THERMAL POWER PLANTS
THERMOCHEMICAL PROCESSES
WASTES