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首页> 美国政府科技报告 >Development of a Validated Model for Use in Minimizing NO(X) Emissions and Maximizing Carbon Utilization When Co-Firing Biomass with Coal.
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Development of a Validated Model for Use in Minimizing NO(X) Emissions and Maximizing Carbon Utilization When Co-Firing Biomass with Coal.

机译：开发一种用于最小化NO（X）排放并最大化碳利用的生物质与煤共燃的模型。

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This is the seventh Quarterly Technical Report for DOE Cooperative Agreement No. DE-FC26-00NT40895. A statement of the project objectives is included in the Introduction of this report. Two additional biomass co-firing test burns were conducted during this quarter. In the first test (Test 12), up to 20% by weight dry hardwood sawdust and switchgrass was comilled with Galatia coal and injected through the single-register burner. Liquid ammonia was intermittently added to the primary air stream to increase fuel-bound nitrogen and simulate cofiring with chicken litter. Galatia coal is a medium-sulfur (approx. 1.2% S), high chlorine (approx. 0.5%) Illinois Basin coal. In the second test (Test 13), up to 20% by weight dry hardwood sawdust and switchgrass was comilled with Jim Walters no.7 mine coal and injected through the single-register burner. Jim Walters no.7 coal is a low-volatility, low-sulfur (approx. 0.7% S) Eastern bituminous coal. The results of these tests are presented in this quarterly report. Progress has continued to be made in implementing a modeling approach to combine reaction times and temperature distributions from computational fluid dynamic models of the pilot-scale combustion furnace with char burnout and chemical reaction kinetics to predict NOX emissions and unburned carbon levels in the furnace exhaust.

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