Thirty-Day Field Tests of Industrial Boilers: Site 6 - Gas-Fired Fire-Tube Boiler

摘要

This is a final report on a test program to evaluate the long-term effectiveness of combustion modifications on industrial boilers. During previous programs, short-term tests were performed on industrial boilers to determine the effect of combustion modifications on air pollutant emissions such as NOx, SOx, CO, HC, and particulates. The objective of this program was to determine if combustion modification techniques which were effective for short-duration tests are feasible for a longer period. The report gives results of a long-duration field test of a 200-hp fire-tube boiler using low excess air as the NOx control technology. The field test was conducted with the unit firing natural gas and with the normal duty cycle. The mean NO level for the 24-day test was 29.5 ng/J with a geometric dispersion of 1.05.