Effects of oxygenated fuels on emissions and carbon composition of fine particles from diesel engine

Acetal (1,1-diethoxyethane) is considered as an alternative to ethanol as bio-derived additive for diesel fuel, which is miscible in diesel fuel. Biodiesel can improve the oxygen content and flash point of the fuel blend of acetal and diesel fuel. Two oxygenated fuels were prepared: a blend of 10% a...

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Bibliographic Details
Published inHuanjing kexue Vol. 30; no. 6; p. 1561
Main Authors Shi, Xiao-Yan, He, Ke-Bin, Zhang, Jie, Ge, Yun-Shan, Tan, Jian-Wei
Format Journal Article
LanguageChinese
Published China 15.06.2009
Subjects
Air Pollutants - analysis
Air Pollutants - chemistry
Air Pollution - prevention & control
Carbon - analysis
Ethyl Ethers - chemistry
Ethylene Glycols - chemistry
Gasoline - analysis
Oxidation-Reduction
Particulate Matter
Vehicle Emissions - analysis
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Summary:Acetal (1,1-diethoxyethane) is considered as an alternative to ethanol as bio-derived additive for diesel fuel, which is miscible in diesel fuel. Biodiesel can improve the oxygen content and flash point of the fuel blend of acetal and diesel fuel. Two oxygenated fuels were prepared: a blend of 10% acetal + 90% diesel fuel and 10% acetal + 10% biodiesel + 80% diesel fuel. The emissions of NO(x), HC and PM2.5 from oxygenated fuels were investigated on a diesel engine bench at five modes according to various loads at two steady speeds and compared with base diesel fuel. Additionally, the carbon compositions of PM2.5 were analyzed by DRI thermal/optical carbon analyzer. Oxygenated fuels have unconspicuous effect on NO(x) emission rate but HC emission rate is observed significantly increased at some modes. The emission rate of PM2.5 is decreased by using oxygenated fuels and it decreases with the increase of fuel oxygen content. The emission rates of TC (total carbon) and EC (elemental carbon) in PM2.5 are also de
ISSN:0250-3301