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Show DEMONSTRATION OF SUB-9 PPM NOx EMISSIONS USING THE RADIATION STABILIZED BURNER IN AN INDUSTRIAL PACKAGE BOILER John D. Sullivan, Scott H. Smith, and Andrew W. Webb Alzeta Corporation 2343 Calle Del Mundo Santa Clara, CA 95054 Presentation at the 1999 AFRC Conference October 3-6, 1999 San Francisco, California ABSTRACT In work presented previously1, very low NOx emissions were demonstrated using Alzeta's Radiation Stabilized Burner (RSB) technology in an industrial boiler. Sub-9 ppm emissions of NOx were achieved simultaneously with low emissions of C O and unburned hydrocarbons in field tests conducted by Alzeta in a Thermally Enhanced Oil Recovery (TEOR) steamer. These tests demonstrated the ability to achieve the 9 ppm NOx emissions target both with and without flue gas recirculation (FGR), providing the end user with either a lowest first cost or a lowest operating cost 9 ppm solution. Based on these favorable test results, a 50,000 lb/hr industrial package boiler was installed at a customer site in mid-1999 that was equipped with an Alzeta burner guaranteed at the 9 ppm NOx emissions level. The successful installation and startup of this boiler are described below. The 9 ppm performance guarantee was provided by Alzeta using the RSB in a standard package boiler design with minimal modifications to the windbox or boiler controls. The benefit of the RSB approach to low NOx is believed to be the simplicity of the concept, which can lead to very low initial capital and startup costs for a 9 ppm system. 1. INTRODUCTION The Radiation Stabilized Burner (RSB), commercialized under the name Pyromat CSB™, is a premixed, semi-radiant, natural gas burner that uses a patented technique to form radiant and blue-flame zones adjacent to each other on a cylindrical porous surface metal mat. RSB describes the technology and C S B ™ is the commercial product name, but both names are used interchangeably in this paper. The burner offers surface heat release rates that are up to ten times higher than traditional radiant burners. The development of the RSB has dramatically reduced the size and cost of porous surface burners, while maintaining the benefits of controlled flame shape and low l |