Effects of sulfur and aromatic contents in gasoline on motorcycle emissions

Yung Chen Yao, Jiun Horng Tsai, An Lin Chang, Fu Tien Jeng

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)


By investigating the effect of sulfur and aromatic contents in gasoline on the criteria pollutant emissions [CO, total hydrocarbons (THCs), and NOx] and on air toxics in the exhaust from a non-catalyst four-stroke motorcycle engine, inferences can be made concerning the effect of fuel composition on motorcycle emissions. The fuels were blended with different contents of sulfur (40 and 150 ppmw) and aromatics (20 and 30 vol%). The data indicate that the sulfur content does not correlate with the emissions of the criteria pollutants from the catalyst free engine. Instead, lowering aromatic content in gasoline reduced the THC emission by over 30%, especially in the cruising test. The NOx emission, however, showed an inverse correlation with the aromatic content in gasoline. While a reduction of aromatic content in gasoline may decrease emissions of benzene and toluene, it will increase the emission of aldehyde. Since the percentage changes of emission factor of THC and air toxics in the motorcycle were larger than those in passenger cars, the benefit of emission reduction due to fuel composition changes in motorcycles may have significant impacts in health risk analysis.

頁(從 - 到)6560-6564
期刊Atmospheric Environment
出版狀態Published - 2008 8月

All Science Journal Classification (ASJC) codes

  • 一般環境科學
  • 大氣科學


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