Sampled exhaust gases from an S.I. engine fueled by methanol or ethanol were introduced into a reactor tube with dilution air at dilution ratios ranging between 10 and 2000. With the irradiation of ultraviolet rays, aldehydes were confirmed to be formed after the formation of alkylnitrites resulting from the reaction between unburned alcohol and nitrogen oxides. The formation of alkylnitrates followed the formation of aldehydes. At high dilution ratios the resulting photochemical product from both methanol and ethanol was methylnitrate. 3-5 % of unburned alcohol, both methanol and ethanol, was converted to methylnitrate in two or three days.
Photochemical reaction of alcohol-fueled engine exhaust gases
Photochemische Reaktion der Abgase aus alkoholbetriebenen Motoren
7th Int. Symp. on Alcohol Fuels, Inst. Francais du Petrole ; 1 , Okt ; 433-438
1986
6 Seiten, 10 Bilder, 4 Quellen
Aufsatz (Konferenz)
Englisch
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