Study of Combustion Products in Exhaust Emission from SI Combustion Which Used N-heptane-air Stoichiometric Mixture

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  • ノルマルヘプタン－空気ストイキSI 燃焼から排出される燃焼生成物の検討
  • ノルマルヘプタン-クウキ ストイキ SI ネンショウ カラ ハイシュツ サレル ネンショウ セイセイブツ ノ ケントウ

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Abstract

A comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometer (GC x GC - TOFMS) was employed to analyze combustion products in exhaust gas emitted by SI combustion using n-heptane as fuel and poly-α-olefin as lubricating oil. For identification of detected substance, NIST library search of the GC Image software was used. In this study, it was suggested that branched chain compounds, aromatic compounds and naphthenic compounds existed in exhaust gas of n-heptane SI combustion, in spite of only using straight chain hydrocarbons. In addition to that, the existence of many types of nitrogen-containing or oxygen-containing hydrocarbons was suggested.

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