Selective non-catalytic reduction (SNCR) of toxic gaseous...

Details Selective non-catalytic reduction (SNCR) of toxic gaseous... Selective non-catalytic reduction (SNCR) of toxic gaseous...

2000-08-15

2009-08-18

Felton, Aileen B (Department: 1793)

Explosive and thermic compositions or charges

Fume or waste affecting

Reexamination Certificate

active

07575648

ABSTRACT:
Selective non-catalytic reducing (SNCR) compounds, independent of the gas generant composition, reduce the toxicity of effluent gases produced by combustion of nonazide gas generating compositions used to inflate vehicle occupant restraint systems. It is believed that reaction of the NH2radical (formed from the SNCR compound) with NO in the combustion gas forms N2thereby decreasing the concentration of toxic nitrogen oxides therein. Heterogeneous placement of the reducing compound proximate to the gas generant bed within a gas generator ensures intimate contact with the combustion gases, and yet still provides a noninvasive method of toxic gas reduction.

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