Reburning for Cyclone Boiler N0x Control

Recent pilot-scale testing cosponsored by the Electric Power Research Institute (EPRI) and the Gas Research Institute (GRI) indicates that reburning can reduce NO_x emissions by 40-60 percent in cyclone boilers when pulverized coal (PC), oil, or natural gas is used as the reburn fuel. The pilot tests, performed at the Babcock and Wilcox (B&W) Alliance Research Center using a six million Btu/h cyclone-fired pilot-scale furnace, were designed to confirm and expand upon the conclusions of an earlier B&W feasibility study. That study predicted reburning could reduce NO_x by 50 percent in most cyclone boilers now in operation.