http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Experiments on the selective non-catalytic reduction of nitric oxide
xxi, 256 leaves : illustrations ; 28 cm.
Selective non-catalytic removal of nitric oxide (NO) using
powdered cyanuric acid (C3H3N303) and gaseous ammonia (NH3)
in separate tests was studied for pressures up to 515 kPa.
The experiments were conducted in an electrically heated
laminar-flow, variable geometry quartz reactor using mixtures
of various concentrations of N2, 02, NO, CO, H20 to simulate
exhaust gas. A Fourier Transform Infrared (FTIR)
spectrometer was used to detect and quantify the gaseous
products of this process. The effects of mixing, preheating,
and/or quenching rate were significant to the reduction
processes. The Thermal DeNOx, process showed the formation
of substantial N02 at high-pressure conditions. The cyanuric
acid (CA) decomposition results showed tremendous sensitivity
to temperature. The RAPRENOx, process, which involved CA
decomposition at 825 K, had less than 10% of the initial
fixed nitrogen species of the simulated combustion stream
after mixing with the CA decomposition stream for reactor
temperatures above 1300 K at a pressure of 515 kPa. The
fixed nitrogen species included NO, N20, N02, HNCO, NH3 and
HCN. The MULTNOx, process (new to this investigation), which
involved CA decomposition at 950K, generally showed little
sensitivity to variations in 02, CO, and pressure, but HNCO
appeared to be formed during the reduction reaction for
reaction temperatures below 1125 K. The results of this
investigation at elevated pressure have not previously been
available, and should allow for modifications to existing
kinetic models to improve the understanding of these various
"Major Subject: Mechanical Engineering".
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