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NOX
NOX
9
Environmental Studies
Undergraduate 1
12/20/2009

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Cards

Term
Sources of NOx
Definition
Thermal NOX(95%), Fossil fuels, breakdown of Nitrogen compounds and HCs
Term
Thermal NOx increase
Definition
High flame temps, nitrgen exposed to flame, excess NOx is greater the A/f
Term
Flame temp of NOx higher then 1850
Definition
increase in NOx, reduce oders and toxins
Term
NOx reduction methods: pre combustion
Definition
change fuels from coal to nat gas, reduce combustion capicity
Term
NOx reduction combustion
Definition
 Reduce air and comb temp, inject steam or water to reduce temp, two stage comb, flue gas recirculation
Term
Post comb methods reduction
Definition
catalytic and non catalytic reduction
Term
Thermal NOx
Definition
NOx formed through high temperature oxidation of the diatomic nitrogen found in combustion air.
Term
non catalyic reduction
Definition
inject emmonia into exhuast without catalyst
Term
catalyic reduction
Definition
inject ammonia intoflue gas steam and passthrough catalyst bed
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