[Industrial pulverized coal low NO{sub x} burner, Phase I] technical progress report, April 1, 1992--June 30, 1992
Market evaluation of industrial pulverized coal usage, and of typical industries and applications where the low-NO{sub x}, burner may be sold, was partially completed at the end of this reporting period. The study identified three coals that may adequately meet the requirements of the low-NO{sub x} burner modeling study, and of the intended industrial applications. These were: (a) Pittsburgh Seam Bituminous, (b) Pittsburgh No. 8, and (c) Utah Bituminous. The first burner design, for modeling studies, was developed for a nominal output of 5.0 million Btu/hr. All input and process parameters, and all major dimensions of the burner have been determined. Burner design sketch was developed. Standard jet pump geometry of the fuel-rich burner flow path (US Patents No. 4,445,842 and No. 3,990,831), has been modified for use with pulverized coal. Staged air was added. Staged air, in conjunction with recirculated flue gas, has been found by ADL, MIT and other researchers to be effective in NO{sub x}, reduction. No attempt has been made to achieve compactness of design. The primary and seconder, air inlets and flow passages are separate, although in the industrial burner they will be combined. Flue gas may be drawn into the burner either from the hot furnace chamber, or from the flue stack after recuperation. However, to satisfy the energy requirements for volatilizing the coal, flue gas temperature above 2000{degrees}F may be needed. With the preliminary burner design completed, and suitable coals for the modeling study selected, type project is ready to proceed to the kinetic modeling tasks at MIT.
- Research Organization:
- Little (Arthur D.), Inc., Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC22-92PC92151
- OSTI ID:
- 10104082
- Report Number(s):
- DOE/PC/92151-T1; ON: DE93004953
- Resource Relation:
- Other Information: PBD: 1 Sep 1992
- Country of Publication:
- United States
- Language:
- English
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