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U.S. Department of Energy
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Staged cascading fluidized-bed combustor. Volume I. Final report

Technical Report ·
OSTI ID:5690908
This report presents a technical and economic evaluation of an advanced concept in fluidized bed combustion, the Staged Cascade Fluidized Bed Combustor (SCFBC). A detailed technical analysis of the performance of the boiler is presented with respect to its thermal efficiency, combustion efficiency, sulfur capture efficiency, sorbent utilization and NO/sub x/, CO and hydrocarbon emissions. The impact of meeting targeted goals in each of the above performance parameters on the design of the SCFBC is discussed. Capital costs of the boiler and the balance of plant are estimated for SCFBC boilers ranging in steam output from 50 to 400 kpph and producing 50 to 400 psia saturated steam. Annualized costs of the boiler are also developed burning a Pittsburgh seam coal and using Greer limestone and Tymochtee dolomite as sulfur capture sorbents. The capital costs estimates of the SCFBC are compared to both vendor quotes of AFBC and in-house capital costs estimates of conventional AFBC boilers. The estimates show a 19% capital cost savings when compared to in-house cost estimates using identical estimating procedures for both; estimates are used to project the market penetration of the SCFBC boiler. A program is presented to carry the concept from bench scale testing through commercialization. A detailed cost estimate for the design, construction, and testing at the bench scale level is included in the presentation. The usefulness of having a centralized government owned process development facility to test advanced concepts in fluidized bed combustion is also presented in this report and the economic advantages of a centralized facility are discussed.
Research Organization:
Energy and Environmental Engineering, Inc., Cambridge, MA (USA)
DOE Contract Number:
AC21-82MC19327
OSTI ID:
5690908
Report Number(s):
DOE/MC/19327-1407-Vol.1; ON: DE83010938
Country of Publication:
United States
Language:
English