生物质室内燃烧产物的碳质特征及EC同位素组成

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Abstract

The typical kinds of biomass (rice straw, reeds straw, corn stalk, phoenix, osmanthus and magnolia leaves) in Nanjing were collected to conduct indoor combustion experiments. The concentrations of organic carbon (OC) and elemental carbon (EC) in the particles collected from biomass combustion were analyzed using Model 2001A Thermal Optical Carbon Analyzer,and isotopic compositions of EC were determined by EA/IRMS synchronously. The results showed that the emission factor of OC during biomass combustion reached the maximum at the scope <0.43μm except reeds straw while EC emission factor reached the maximum at the scope <0.43μm and 0.43~0.65μm except phoenix and osmanthus leaves. Among which, the emission factors of OC and EC of corn stalk were the highest. All the mass concentrations of OC and EC in biomass combustion products were the highest at the particle size less than 0.43μm. Besides, the isotopic compositions of EC in smoke and ashes from corn stalk combustion were higher compared with those from other biomass combustion. In addition to biomass components, the high temperature during biomass combustion might lead to carbon isotopic fractionation.

Key words： biomass combustion elemental carbon carbon isotope

Received: 18 March 2017

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X513

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	Articles by authors
	SHEN Xiao-yu
	GUO Zhao-bing
	JIANG Wen-juan
	WANG Jin-jin
	BAI Yang
	REN Jie

Cite this article:

SHEN Xiao-yu,GUO Zhao-bing,JIANG Wen-juan等. Carbon characteristics and elemental carbon isotopic compositions in biomass indoor combustion products[J]. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(10): 3669-3674.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2017/V37/I10/3669

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