500 MW demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. First quarter 1994. Technical progress report, January 1994--March 1994

Technical Report · Mon May 01 04:00:00 EDT 1995

OSTI ID:53684

This quarterly report discusses the technical progress of an Innovative Clean Coal Technology (ICCT) demonstration of advanced wall-fired combustion techniques for the reduction of nitrogen oxide (NO{sub x}) emissions from coal-fired boilers. The project is being conducted at Georgia Power Company`s Plant Hammond Unit 4 located near Rome, Georgia. The primary goal of this project is the characterization of the low NO{sub x} combustion equipment through the collection and analysis of long-term emissions data. A target of achieving fifty percent NO{sub x} reduction using combustion modifications has been established for the project. The project provides a stepwise retrofit of an advanced overfire air (AOFA) system followed by low NO{sub x} burners (LNB). During each test phase of the project, diagnostic, performance, long-term, and verification testing will be performed. These tests are used to quantify the NO{sub x} reductions of each technology and evaluate the effects of those reductions on other combustion parameters. Baseline, AOFA, LNB, and LNB plus AOFA test segments have been completed. Analysis of the 94 days of LNB long-term data collected show the full-load NO{sub x} emission levels to be approximately 0.65 lb/MBtu with flyash LOI values of approximately 8 percent. Corresponding values for the AOFA configuration are 0.94 lb/MBtu and approximately 10 percent. For comparison, the long-term, full-load, baseline NO{sub x} emission level was approximately 1.24 lb/MBtu at 5.2 percent LOI. Comprehensive testing in the LNB+AOFA configuration indicate that at full-load, NO{sub x} emissions and flyash LOI are near 0.40 lb/MBtu and 8 percent, respectively. Based on a preliminary analysis, approximately 17 percent of the incremental change in NO{sub x} emissions between the LNB and LNB+AOFA configurations is the result of AOFA, the balance of the NO{sub x} reduction resulting from other operational adjustments.

• Research Organization: Southern Co. Services, Inc., Birmingham, AL (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: FC22-90PC89651
• OSTI ID: 53684
• Report Number(s): DOE/PC/89651--T18; ON: DE95010618
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
BOILERS
COAL PREPARATION
DESULFURIZATION
NITROGEN OXIDES
POLLUTION CONTROL
PROGRESS REPORT
REMOVAL