Demonstration of advanced combustion techniques for a wall-fired boiler: A project proposed by Southern Company Services, Inc. Comprehensive report to Congress Clean Coal Technology Program.

摘要

In December 1987, Public Law No. 100-202, as amended by Public Law No. 100-446, provided $575 million to conduct cost-shared Innovative Clean Coal Technology (ICCT) projects to demonstrate emerging clean coal technologies that are capable of retrofitting or repowering existing facilities. One of the proposals selected is the Southern Company Services, Inc. (SCS, Inc.) (a subsidiary of Southern Electric System), 500 MWe demonstration of advanced wall-fired combustion techniques. During this project, the removal of NO(sub x) from pulverized coal-fired boilers by the use of several combustion control techniques, Advanced Overfire Air (AOFA), Low NO(sub x) Burners (LNB), and combined AOFA and LNB will be demonstrated. AOFA involves three techniques consisting of (1) improving the mixing of overfire air with the furnace gases to achieve complete combustion, (2) depleting the air from the burner zone to minimize NO(sub x) formation, and (3) supplying air over furnace wall tube surfaces to prevent slagging and furnace corrosion. This technique is expected to reduce NO(sub x) emissions by about 35%. 7 figs., 1 tab.