Influence of fuel sulfur on the characterization of PM10 from a diesel engine
Influence of fuel sulfur on the characterization of PM10 from a diesel engine
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DOI：
10.1016/j.fuel.2008.09.001
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发表时间：
2009-03
期刊：
影响因子：
7.4
通讯作者：
Jie Zhang;K. He;Yunshan Ge;Xiao-yan Shi
中科院分区：
文献类型：
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作者：
Jie Zhang;K. He;Yunshan Ge;Xiao-yan Shi
为研究燃油含硫量对中国典型发动机排放的柴油颗粒特性的影响，在1400rpm和2300rpm发动机转速下，分别在20%、50%和80%负荷下，使用含硫量为30ppm和500ppm的两种柴油进行发动机测力计试验。采用AVL AMA4000和Model 130高流量冲击器（MSP Corp .）分别对气体污染物和颗粒物（PM）排放进行采样。更具体地说，还测量了PM质量、总碳（TC）、有机碳（OC）、元素碳（EC）和水溶性离子分布。与高硫柴油相比，应用低硫柴油可使燃油基PM排放降低9.2-56.6%。在1400rpm时，低硫柴油的OC和EC分别降低了5-34%和20%左右；而在2300rpm时，低硫燃料降低了33-57%的OC，增加了EC排放，导致OC/EC比降低。结果表明，低硫柴油对柴油机氧化有促进作用，但对柴油机氧化的影响与发动机转速有关。对TC和PM10进行了线性回归，低硫柴油和高硫柴油的斜率分别为0.88和0.80。使用高硫柴油时，在0.13μm颗粒中检测到较高的硫酸盐含量，但两种柴油中pm10的硫酸盐含量均为0.9%。与500ppm时相比，在0.13μm颗粒中使用30ppm硫柴油时，EC在2300rpm转速下达到了114%的最大值。
To study the effects of fuel sulfur content on the characteristics of diesel particle emitted from a typical engine used in China, two types of diesel fuel with sulfur content of 30ppm and 500ppm were used in this engine dynamometer test under six operation conditions corresponding to 20%, 50% and 80% load at 1400rpm and 2300rpm engine speeds, respectively. Gaseous pollutants and particulate matter (PM) emissions were sampled with AVL AMA4000 and Model 130 High-Flow Impactor (MSP Corp), respectively. More specifically, the PM mass, total carbon (TC), organic carbon (OC), elemental carbon (EC) and water-soluble ion distribution were also measured. Compared with high sulfur diesel, the application of low sulfur diesel can lower fuel-based PM emissions by 9.2–56.6%. At 1400rpm, the low sulfur diesel decreased both OC and EC by 5–34% and about 20%; while at 2300rpm, the low sulfur fuel decreased OC by 33–57% and increased EC emission, resulting in a lower OC/EC ratio. The evidence implicating that OC oxidation was promoted by low sulfur diesel, but the effect on EC oxidation was dependent on engine speed. The linear regression has been conducted between TC and PM10, and the slopes were 0.88 and 0.80 for low sulfur diesel and high sulfur one, respectively. Higher sulfate content was detected in the 0.13μm particles when using the high sulfur diesel, but the percentage of sulfate was 0.9% for PM10from both diesel fuels. Comparing with that of 500ppm, EC increased sharply to a maximum of 114% in particles of 0.13μm when using 30ppm sulfur diesel at 2300rpm.