Influence of the biofuel isomers diethyl ether and n-butanol on flame structure and pollutant formation in premixed n-butane flames
Influence of the biofuel isomers diethyl ether and n-butanol on flame structure and pollutant formation in premixed n-butane flames
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生物燃料异构体乙醚和正丁醇对预混正丁烷火焰中火焰结构和污染物形成的影响
DOI：
10.1016/j.combustflame.2016.06.031
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发表时间：
2017
影响因子：
4.4
通讯作者：
Kohse-Hoeinghaus Katharina
中科院分区：
文献类型：
--
作者：
Tran Luc-Sy;Pieper Julia;Zeng Meirong;Li Yuyang;Zhang Xiaoyuan;Li Wei;Graf Isabelle;Qi Fei;Kohse-Hoeinghaus Katharina
二乙醚（DEE）及其异构体正丁醇都被认为是有前途的燃料添加剂或纯生物燃料。虽然已经报道了在发动机条件下将其添加到碳氢燃料中的一些影响，但旨在了解此类燃料混合物的联合反应途径的基础研究仍然相当缺乏。在这里，我们选择了正丁烷作为一个良好的研究碳氢化合物的基础燃料，我们已经加入了这些含氧异构体单独在相同的条件下，在预混低压火焰。相应的烷烃-生物燃料混合物的不同燃烧行为必须与燃料结构相关。分析了正丁烷、DEE和正丁醇五种富燃料火焰以及正丁烷掺50% DEE和50%正丁醇两种富燃料火焰的燃烧特性。在该系列中，碳氧比、氩气稀释、压力和气体速度保持恒定。通过电子电离（EI）分子束质谱（MBMS）结合气相色谱（GC），在每个火焰中识别和定量了C 0-C8范围内的40多种物质。部分实验由可调谐同步辐射真空紫外（SVUV）光电离（PI）-MBMS补充。为了帮助解释的数据，动力学模型的建立，结合不同的子机制，这些燃料在文献中。如所预期的，在添加两种含氧燃料异丁烷时，有毒羰基化合物如甲醛和乙醛的形成显著增加。正丁烷与DEE的混合显著减少了碳烟前驱体的生成，这是因为DEE的初级反应主要释放C1-C2烃类物质到体系中，而正丁醇的加入没有显著的减少碳烟前驱体的生成，甚至碳烟前驱体的生成量更高。在实验和模型预测中都观察到了这些趋势，与DEE相比，正丁醇形成碳烟前体的能力更高，这主要是由于燃料结构的差异。
Diethyl ether (DEE) and its isomern-butanol are both considered as promising fuel additives or neat biofuels. While some effects of their addition to hydrocarbon fuels under engine conditions have been reported, fundamental studies that aim at understanding the joint reaction pathways of such fuel mixtures remain quite scarce. Here, we have chosenn-butane as a well-studied hydrocarbon base fuel, and we have added these oxygenated isomers individually under identical conditions in premixed low-pressure flames. Different combustion behavior of the respective alkane-biofuel mixtures must then be related to the fuel structure. Analyses were performed in five fuel-rich flames including flames ofn-butane, DEE, andn-butanol as well as two flames ofn-butane doped with 50% DEE or 50%n-butanol. In this series, the carbon-to-oxygen ratio, argon dilution, pressure, and gas velocity were kept constant. More than 40 species in the range of C0–C8were identified and quantified in each flame by electron ionization (EI) molecular-beam mass spectrometry (MBMS) coupled with gas chromatography (GC). The experiments were partially complemented by tunable synchrotron vacuum ultraviolet (SVUV) photoionization (PI)-MBMS. To assist in the interpretation of the data, a kinetic model was established by combining different sub-mechanisms for these fuels available in the literature. As expected, the formation of toxic carbonyls, such as formaldehyde and acetaldehyde, increased significantly upon addition of both oxygenated fuels ton-butane. Blendingn-butane with DEE noticeably reduces the formation of soot precursors, because primary reactions of DEE mainly release C1–C2hydrocarbon species to the system.n-Butanol addition, however, shows no significant reduction effects or even higher formation of soot precursors. These trends were observed both in the experiments and model predictions, and the higher ability ofn-butanol to form soot precursors compared to DEE indeed results mainly from the differences in the fuel structure.
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影响因子：
9
作者：
Gillespie, Fiona;Metcalfe, Wayne K.;Dirrenberger, Patricia;Herbinet, Olivier;Glaude, Pierre-Alexandre;Battin-Leclerc, Frederique;Curran, Henry J.
通讯作者：
Curran, Henry J.
影响因子：
5.3
作者：
Healy, D.;Kopp, M. M.;Curran, H. J.
通讯作者：
Curran, H. J.
影响因子：
2.5
作者：
T. Litzinger;M. Stoner;H. Hess;A. Boehman
通讯作者：
T. Litzinger;M. Stoner;H. Hess;A. Boehman
DOI：
10.4271/980506
发表时间：
1998-02
期刊：
SAE transactions
影响因子：
--
作者：
N. Miyamoto;H. Ogawa;Nabi Md. Nurun;K. Obata;T. Arima
通讯作者：
N. Miyamoto;H. Ogawa;Nabi Md. Nurun;K. Obata;T. Arima
影响因子：
4.4
作者：
U. Struckmeier;A. Lucassen;N. Hansen;Tomoya Wada;N. Peters;K. Kohse-Höinghaus
通讯作者：
U. Struckmeier;A. Lucassen;N. Hansen;Tomoya Wada;N. Peters;K. Kohse-Höinghaus