Combustion control for elimination of nitric oxide emissions from fossil-fuel power plants

Thermal degradation of selected chlorinated herbicides

“…The results of the incineration of these herbicides were somewhat simplified by the fact that the NASA/LEWIS program does not consider reaction kinetics, but predicts the products of combustion solely on the basis of their thermodynamic stability under the specified conditions. Two of the systems affected by the neglect of kinetics were the CO and NO systems, both of which have been studied extensively in recent years (Newhall, 1969;Breen et al, 1971). Actual CO concentrations in automobile exhaust have been found to correspond more closely to the equilibrium values at the combustion temperatures than to the equilibrium values at the cooler exhaust temperatures.…”

Formation and emission of nitric oxide in fluidized bed combustion

“…"dog leg" outfall, both discharging at a depth of 60 meters at the edge of the continental shelf-have been designed for specific hydraulic performance; the rise of the plume as well as the dilution of sewage by seawater have been especially well studied (1). 4. Monitoring programs of the sewage composition have been carried out at the JWPCP plant (2), and a study of the metal concentrations in the nearby sediments has been completed (3) so that an experimental data base is available.…”

“…Conventional uncontrolled combustion emits 300-1500 ppm of nitric oxide (1). With temperature and available oxygen controlled, emissions can be reduced to 100 ppm (1,2) or less (3). Fuel fixed nitrogen may be exhausted as nitric oxide (4).…”

Design Study of an Advanced Concept Simple Gas Turbine for Possible Use in Low Emission Automobiles

“…Emissions of the oxides of nitrogen, NO and NO 2 , called NOx , are the most difficult exhaust pollutants to control and reduce to desired levels for gas turbines in ground vehicles (1 and its references). Many theoretical studies (11)(12)(13) have shown that flame temperature is, by far, the most significant factor affecting NOx formation. Unpublished kinetic reaction calculations by Pratt & Whitney Aircraft indicate that primary zone residence time is perhaps one twentieth as significant a factor as flame temperature and pressure level is only about one thirtythird as powerful a factor (assumed combustor inlet of 800 F and 15 atm, 0.8 equivalence ratio, 0.002 sec after completion of combustion).…”