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LOW NOX COMBUSTION SYSTEMS WITH SO2 CONTROL USING LIMESTONE
Citation:
Drehmel, D., G.B. Martin, J. Milliken, AND J. Abbott. LOW NOX COMBUSTION SYSTEMS WITH SO2 CONTROL USING LIMESTONE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/D-85/154 (NTIS PB85243699).
Description:
The paper describes EPA work on low NOx combustion systems with SO2 control using limestone. Although SO2 control in low NOx systems for both stoker and pulverized-coal-fired furnaces is under investigation at EPA, most of the current work is with pulverized coal. EPA's Limestone Injection Multistage Burners (LIMB) program is an effort to develop an effective but inexpensive emission control technology for pulverized-coal boilers that will simultaneously remove SOx and NOx from boiler flue gases. The technology is based on the use of low NOx combustion techniques in combination with dry limestone injection into the furnace (combustion chamber) for simultaneous SOx control. The program goal is to develop the technology to obtain substantial reductions in SOx and NOx emissions for a capital investment cost of 30-40 $/kW -- less than 20% of the capital cost of conventional flue gas desulfurization systems.