HIGH TEMPERATURE NOX CONTROL PROCESS

THE AIR FORCE HAS TWO MAJOR AREAS OF NEED FOR NITROGEN OXIDE (NOX) CONTROL HAVING EXHAUST TEMPERATURES SUBSTANTIALLY ABOVE TYPICAL UTILITY BOILER APPLICATIONS, INCINERATION AND STATIONARY JET ENGINE TEST CELLS. EXISTING PROCESSES FOR THE SELECTIVE CATALYTIC REDUCTION (SCR) OR NOX BY AMMONIA ARE GENERALLY LIMITED TO TEMPERATURES OF ABOUT 750 DEG F. FOR THE AIR FORCE APPLICATIONS THESE UTILITY SCR SYSTEMS ARE INEFFECTIVE. KSE, INC. HAS RECENTLY DEVELOPED A NEW SCR SYSTEM SPECIFICALLY FOR THESE HIGH TEMPERATURE APPLICATIONS. THE CATALYST OPERATES WITH PEAK PERFORMANCE AT TEMPERATURES OF AT LEAST 1100 DEG F. THE CATALYST IS HIGHLY ACTIVE AND SMALL AMOUNTS ARE REQUIRED. AMMONIA CONSUMPTION IS ABOUT TWOTHIRDS THAT OF CONVENTIONAL CATALYSTS. THE CATALYSTS CAN BE EMPLOYED DIRECTLY IN THE EXHAUST GAS OF STATIONARY JET ENGINES OR INCENERATORS. ELIMINATION OF HEAT EXCHANGE AND SMALL CATALYST VOLUMES RESULT IN SIMPLER OPERATION AND LOWER CAPITAL INVESTMENT. LOWER PRESSURE DROP AND LOWER AMMONIA CONSUMPTION REDUCE OPERATING COSTS. THE LARGE EXISTING EXPERIENCE BASE ON OTHER SCR APPLICATIONS SHOULD ALLOW RAPID SCALEUP AND COMMERCIALIZATION. THIS SCR SYSTEM WILL HAVE SUBSTANTIAL ADVANTAGES, PERMITTING COST-EFFECTIVE CONTROL OF EMISSIONS FROM MILITARY HIGH TEMPERATURE SOURCES.