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Viscosity-Temperature Characteristic of Biodiesel Derived from Pistacia Chinensis Oil
Abstract:
The chemical compositions and viscosity-temperature characteristic of Pistacia Chinensis methyl ester (PCME) are investigated. Viscosity-temperature equations are proposed for predicting kinematic viscosity of PCME,PCME/0 petrodiesel (0PD) and PCME/-10 petrodiesel (-10PD) at different temperature. The objective is to show that PCME is mainly composed of fatty acid methyl esters of 14-24 even-numbered C atoms: C14:0-C24:0, C16:1-C22:1, C18:2-C20:2 and C18:3. The kinematic viscosity (40 °C) of PCME is 5.99mm2/s. PCME has higher kinematic viscosity and unfavorable viscosity temperature characteristic. An approach to reduce viscosity and enhance viscosity-temperature characteristic is put forward: blending with 0 PD or-10PD.
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138-141
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October 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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