Sooting tendency analysis of oxygenate-diesel blended fuels by the affecting indicators of carbon number, oxygen content and H/C ratio

Fang Jun; Liu Ying; Wang Kun; Shah Hassan Raza; Mu Shanjun; Lang Xuqing; Wang Jingwu

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Sooting tendency analysis of oxygenate-diesel blended fuels by the affecting indicators of carbon number, oxygen content and H/C ratio

机译：通过影响碳数，氧含量和H / C比的氧化含氧柴油机混合燃料的烟灰趋势分析

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This study experimentally assessed the sooting tendencies of the diesel fuel blended with typical oxygenated additives. Based on the known influential factors of oxygenated functional group, oxygen content, carbon number, and saturation degree, the functional numbers of carbon and oxygen atoms of the molecules were determined by considering the actual bonding ratio of carbon and oxygen producing CO and CO2 during the combustion of blends. The affecting indicators along with a calculation algorithm were proposed, taking into account the actual effect of each factor on sooting tendency. So-called indicators were termed the affecting oxygen content, carbon number and H/C ratio. Normalized Oxygen Extended Sooting Index (OESI) values incorporating the smoke point values were established to decrease with increasing blending percentage of the oxygenated additives in blends, following an exponential fitting relationship. The resulting exponents quantified the soot inhibition ability of the oxygenated additives, which decreased in the order: ethanol (EA) n-butanol (NBA) methyl tertiary-butyl ether (MTBE) dimethoxy methane (DMM) methyl decanoate (MD) methyl butanoate (MB) dibutyl maleate (DBM) dimethyl carbonate (DMC). A combination of the absolute affecting indicator values generated by the suggested algorithm and their relative weights obtained by Relative Weight Analysis (RWA) could interpret the sooting tendency of most of the blended fuels very well. It was found that the sooting tendency was mainly determined by the absolute values of the affecting indicators, and the priority should follow the results by RWA, that decreased in the order of affecting carbon number affecting oxygen content affecting H/C ratio. This study could benefit the evaluation of the sooting tendency of the oxygenate-diesel blended fuels.

机译：本研究通过典型的含氧添加剂进行了实验评估了柴油燃料的烟灰趋势。基于已知的官能团的有影响力因子，氧含量，碳数和饱和度，通过考虑碳和氧产生CO和CO2期间的实际粘合比来确定分子的碳和氧原子的功能数混合燃烧。提出了影响算法以及计算算法，考虑到每个因素对烟灰倾向的实际效果。所谓的指标被称为影响氧含量，碳数和H / C比。建立了包含烟点值的归一化氧气扩展烟灰指数（OESI）值以随着指数拟合关系的增加，随着共混物中的共混物中的混合百分比而降低。得到的指数量化了氧化添加剂的烟灰抑制能力，其顺序下降：乙醇（EA）>正丁醇（NBA）>甲基叔丁基醚（MTBE）>二甲氧基甲烷（DMM）>甲基癸酸甲基癸酸甲酯（MD ）>甲基丁酸甲酯（MB）>二丁基马酸酯（DBM）>二甲基碳酸二甲酯（DMC）。由建议的算法产生的绝对影响指标值的组合及其通过相对重量分析（RWA）获得的相对重量可以解释大部分混合燃料的烟灰趋势。结果发现，烟灰倾向主要由影响指标的绝对值决定，优先级应遵循RWA的结果，这按照影响影响H / C的碳数>影响氧数>的碳数>减少。该研究可以使含氧铝酸酯 - 柴油混合燃料的烟灰倾向的评价受益。

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来源
《Fuel》 |2021年第15期|119789.1-119789.9|共9页
作者
Fang Jun; Liu Ying; Wang Kun; Shah Hassan Raza; Mu Shanjun; Lang Xuqing; Wang Jingwu;
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作者单位

Univ Sci & Technol China State Key Lab Fire Sci Hefei 230026 Anhui Peoples R China;

Univ Sci & Technol China State Key Lab Fire Sci Hefei 230026 Anhui Peoples R China;

Univ Sci & Technol China State Key Lab Fire Sci Hefei 230026 Anhui Peoples R China;

Univ Sci & Technol China State Key Lab Fire Sci Hefei 230026 Anhui Peoples R China;

SINOPEC Res Inst Safety Engn Qingdao 266100 Shandong Peoples R China;

SINOPEC Res Inst Safety Engn Qingdao 266100 Shandong Peoples R China;

Tsinghua Univ Hefei Inst Publ Safety Res Hefei 230601 Anhui Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Sooting tendency; Oxygenate-diesel blended fuel; OESI; Affecting indicator; Relative weight;

机译：烟灰趋势;含氧化合物 - 柴油混合燃料;OESI;影响指标;相对重量;

Sooting tendency analysis of oxygenate-diesel blended fuels by the affecting indicators of carbon number, oxygen content and H/C ratio

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