Based on specific raw materials and typical production processes, waste oil biodiesel (WME), jatropha biodiesel (JME) and bio-pyrolysis fuel (PBF) were selected as typical biofuels, and 0# petro-chemical diesel (PD) was also selected. Comparison of molecular structure and component content of these four kinds of fuels were carried out. The results showed that the carbon chain length of biodiesel was concentrated in C16 ~ C18, and the content of unsaturated components was higher. The molecular carbon chain length of PBF component was more dispersed, the content of short-chain components was significantly increased, and the unsaturated component was obviously reduced. By comparing the physicochemical properties of the four fuels, it was shown that the molecular carbon chain length and unsaturation have a direct impact on the viscosity, cetane number (CN) and calorific value. The three typical biofuels, especially PBF, are a good alternative to petrodiesel.
ZHANG Yong-hui
,
MIN Yong-jun
,
XU Jun-ming
. Comparative Study on Composition and Physico-Chemical Properties of Typical Biofuels for Vehicles[J]. Advances in New and Renewable Energy, 2018
, 6(6)
: 461
-466
.
DOI: 10.3969/j.issn.2095-560X.2018.06.001
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