乙醇汽油对国六直喷汽油车排放特性的影响

杨正军; 葛蕴珊; 王欣; 刘俊女

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中国环境科学 ›› 2020, Vol. 40 ›› Issue (12) : 5213-5220.

大气污染与控制

乙醇汽油对国六直喷汽油车排放特性的影响

杨正军^1,2, 葛蕴珊¹, 王欣¹, 刘俊女³

作者信息 +

Effects of ethanol-gasoline on the exhaust emissions from China-6 compliant GDI vehicles

YANG Zheng-jun^1,2, GE Yun-shan¹, WANG Xin¹, LIU Jun-nü³

Author information +

文章历史 +

摘要

选择5台国六直喷汽油车采用3种不同组分的E10乙醇汽油和1种不含含氧化合物的国VI汽油，按照国六排放标准开展了WLTC循环测试，研究乙醇和基础油组分对污染物排放的影响规律.结果表明，多数国六直喷汽油车的CO、THC和PM排放有所降低，NO_x排放无明显差异，PN排放微增，所有样车的CO、THC和PM平均排放降低为6%、7%和14%.E10乙醇汽油中的重质芳香烃含量增高时，PN排放明显增加，PN排放与PMI指数呈现较强的正相关关系.

Abstract

To determine the effects of ethanol and fuel components on the exhaust emissions, five China-6 compliant GDI vehicles fueled with three E10 ethanol-gasoline with different compositions and one non-oxygenated China-6 gasoline were tested over the WLTC. The results indicated that burning E10 reduced CO by 6%, THC by 7%, and PM by 14%, but caused a slight increase in PN with mostly equal NO_x. When the contents of heavy aromatic hydrocarbons in E10 ethanol-gasoline increased, PN emissions increased markedly, PN emissions also showed a strong positive correlation with the PMI index.

导出引用

杨正军, 葛蕴珊, 王欣, 刘俊女. 乙醇汽油对国六直喷汽油车排放特性的影响[J]. 中国环境科学. 2020, 40(12): 5213-5220

YANG Zheng-jun, GE Yun-shan, WANG Xin, LIU Jun-nü. Effects of ethanol-gasoline on the exhaust emissions from China-6 compliant GDI vehicles[J]. China Environmental Science. 2020, 40(12): 5213-5220

中图分类号： X51

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