Spectral methods applied to fluidized-bed combustors
The goal of this research is to characterize coals and sorbents during the normal operation of an industrial-scale circulating fluidized bed (CFB) boiler. The method determines coal or sorbent properties based on the analysis of transient CO{sub 2} or SO{sub 2} emissions from the boiler. Fourier Transform Infrared (FTIR) spectroscopy is used to qualitatively and quantitatively analyze the gaseous products of combustion. Spectral analysis applied to the transient response of CO{sub 2} and SO{sub 2} resulting from introduction of a batch of coal or limestone into the boiler yields characteristic time constants from which combustion or sorbent models are developed. The method is non-intrusive and is performed under realistic combustion conditions. Results are presented from laboratory studies and power plant monitoring.
- Research Organization:
- Iowa State Univ. of Science and Technology, Ames, IA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FC21-91MC28081
- OSTI ID:
- 125012
- Report Number(s):
- DOE/MC/28081-96/C0553; CONF-9506162-27; ON: DE96004011; TRN: AHC29528%%47
- Resource Relation:
- Conference: Advanced coal-fired power systems `95 review meeting, Morgantown, WV (United States), 27-29 Jun 1995; Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
COMBUSTION PRODUCTS
ABSORPTION SPECTROSCOPY
FLUIDIZED BED BOILERS
SORBENT INJECTION PROCESSES
INFRARED RADIATION
CARBON DIOXIDE
SULFUR DIOXIDE
BITUMINOUS COAL
FLUIDIZED-BED COMBUSTION
ADSORBENTS
MATHEMATICAL MODELS
FOSSIL-FUEL POWER PLANTS
DEVOLATILIZATION