Combustion characterization of coal fines recovered from the handling plant. Quarterly technical progress report No. 8, July 1, 1996-- September 30, 1996

Technical Report · Tue Oct 01 04:00:00 EDT 1996

DOI:https://doi.org/10.2172/428647· OSTI ID:428647

Masudi, H; Samudrala, S R; Chenevert, L; Cornelius, C

Combustion tests were conducted to determine the range of secondary air swirl required to maintain a stable combustion flame. Results obtained during the flame stability testing shows no significant effect of swirl settings on NO{sub x}, SO{sub 2} and CO{sub 2} for three combustion tests(834,330 Btu/hr, 669,488 Btu/hr, 508,215 Btu/hr). At each of the two higher firing rates, combustion was relatively complete regardless of swirl settings, therefore, burner settings may be adjusted to provide a visually stable flame without concern for higher carbon in ash as a function of burner settings. The parameters affecting flame stability are mainly coal particle size, volatile matter, ash content and excess air. tests conducted at three different locations (Top, Middle, Bottom) revealed that the gaseous concentrations such as NO{sub x}, SO{sub 2} and CO{sub 2} were a function of residence time for each of the firing rates.

• Research Organization: Prairie View A and M Univ., TX (United States)
• Sponsoring Organization: USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
• DOE Contract Number: FG22-94PC94122
• OSTI ID: 428647
• Report Number(s): DOE/PC/94122--T7; ON: DE97051099
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CARBON DIOXIDE
COAL FINES
COMBUSTION PROPERTIES
EXPERIMENTAL DATA
FLAMES
FUEL SLURRIES
NITROGEN OXIDES
PROGRESS REPORT
STABILITY
SULFUR DIOXIDE