Table of Contents
ISRN Spectroscopy
Volume 2012, Article ID 876718, 4 pages
http://dx.doi.org/10.5402/2012/876718
Research Article

Predicting Cold Flow Properties of Diesel by Terahertz Time-Domain Spectroscopy

College of Science, China University of Petroleum, Beijing 102249, China

Received 11 February 2012; Accepted 2 March 2012

Academic Editors: C. S. Ha, J. Kasperczyk, S. Palaniappan, and Y. Ueno

Copyright © 2012 Hui Zhao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The frequency-dependent absorption characteristics of 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 increased monotonically with the solidifying point of diesel. A nonlinear regression model was established, and the cold flow properties of fuel were presented quantitatively. The results made the solidifying point prediction possible by THz-TDS technology and indicated the bright future in practical application.