生物質(zhì)室內(nèi)燃燒產(chǎn)物的碳質(zhì)特征及EC同位素組成
[Abstract]:The typical biomass species (rice, Reed, corn, sycamore, osmanthus and magnolia) in Nanjing area were selected for indoor simulated combustion experiment. At the same time, Model 2001A thermal / photocarbon analyzer and elemental analysis-isotope mass spectrometer (EA/IRMS) were used to determine the concentration of OC,EC in different particle sizes and the isotopic composition of EC in different products of biomass combustion. The results showed that except Reed straw, the OC emission factors produced by other biomass combustion reached the maximum within 0.43 渭 m grain diameter. The EC emission factors were distributed in 0.43 渭 m and 0.43 ~ 0.65 渭 m grain diameter range except for the leaves of Indus and Osmanthus fragrans. Among them, the OC,EC emission factors from corn straw combustion were all the highest. Among the six biomass combustion products, the carbon (OC,) was the highest. The maximum concentration of EC was mainly concentrated in the submicron diameter range of 0.43 渭 m. The isotopic composition of EC in soot and soot produced by corn straw combustion is higher than that of other biomass, except that the components of biomass will affect isotope fractionation, the temperature of combustion process is higher than that of other biomass. It also promotes the pyrolysis of stalks and leaves to form carbon isotope fractionation.
【作者單位】: 南京信息工程大學(xué)環(huán)境科學(xué)與工程學(xué)院;江蘇省大氣環(huán)境監(jiān)測(cè)與污染控制高技術(shù)研究重點(diǎn)實(shí)驗(yàn)室;
【基金】:國(guó)家自然科學(xué)基金資助項(xiàng)目(41373023,91544229-02) 江蘇省研究生科研與實(shí)踐創(chuàng)新計(jì)劃項(xiàng)目(SJZZ16_0157) 江蘇省高!扒嗨{(lán)工程”培養(yǎng)項(xiàng)目 江蘇省“333高層次人才”培養(yǎng)項(xiàng)目
【分類號(hào)】:X51
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