Measurement of Polycyclic Aromatic Hydrocarbons in Bio-diesel Exhaust Particles
We measured fine particles in the diesel (DF) or bio-diesel fuel (BDF) combustion exhaust generated by a diesel power generator (YDG5500E, Yanmer) at two different loads (0 and 1500 W). After the dilution of exhausts to 300 times, fine particles were collected with quartz fiber filter and their size-distributions were measured with Scanning Mobility Particle Sizer. Ionic components, organic and elemental carbon, and polycyclic aromatic hydrocarbons (PAHs) were analyzed with Ionchromatograph, Thermal Optical Carbon Analyzer, and high-performance liquid chromatograph–fluorescence detector, respectively. The chemical compositions and number-size distributions of fine particles were observed at the different combination of DF or BDF and mineral or synthetic lubricant. In the size distributions of diesel and bio-diesel exhaust particles at the different load modes, respective size distribution under low load condition showed lower mass concentration than high load condition. When using BDF, more organic carbon (OC) was emitted than when using DF without considerable change on number-size distribution of particles, while more elemental carbon (EC) and PAHs were emitted when using DF. In the combination of BDF and synthetic lubricating oil, the lowest concentration of EC, total PAHs and respective PAH were observed in the exhaust. These results suggest that the exhaust quality from BDF combustion can improve when replacing mineral lubricating oil to synthetic lubricating oil.
bio-diesel fuel diesel exhaust fine particles size-distribution polycyclic aromatic hydrocarbons
SHIRAI Toshinori MOGI Fumie SEKIGUCHI Kazuhiko WANG Qingyue KUROKAWA Hideki YOSHIMURA Yuji SAKAMOTO Kazuhiko
Department of Environmental Science and Engineering, Graduate School of Science and Engineering, Sai Department of Applied Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Japan Environmental Sanitation Center, 10-6 Yotsuya-kamityou, Kawasaki, 210-0828, Japan
国际会议
2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)
北京
英文
2007-11-13（万方平台首次上网日期，不代表论文的发表时间）