Abstract
The frequency-dependent absorption characteristics of biodiesel and its blends with conventional diesel fuel have been researched in the spectral range of 0.2-1.5 THz by the terahertz time-domain spectroscopy (THz-TDS). The absorption coefficient presented a regular increasing with biodiesel content. A nonlinear multivariate model that correlating cetane number and solidifying point of bio-diesel blends with absorption coefficient has been established, making the quantitative analysis of fuel properties simple. The results made the cetane number and solidifying point prediction possible by THz-TDS technology and indicated a bright future in practical application.
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Acknowledgments
This work was supported by THz Research Centre of China Jiliang University, the Program for New Century Excellent Talents in University (No. NCET-08-0841), the Beijing Natural Science Foundation (No. 4122064), and the Foresight Fund Program from China University of Petroleum (Beijing) (No. QZDX-2010-01).
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Zhao, H., Zhao, K. & Bao, R. Fuel Property Determination of Biodiesel-Diesel Blends By Terahertz Spectrum. J Infrared Milli Terahz Waves 33, 522–528 (2012). https://doi.org/10.1007/s10762-012-9886-x
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DOI: https://doi.org/10.1007/s10762-012-9886-x