Study on the lubrication properties of biodiesel as fuel lubricity enhancers

被引:167
作者
Hu, JB [1 ]
Du, ZX [1 ]
Li, CX [1 ]
Min, E [1 ]
机构
[1] SINOPEC, Res Inst Petr Proc, Beijing 100083, Peoples R China
关键词
biodiesel; lubricity; vegetable oil; HFRR; fatty acid methyl esters;
D O I
10.1016/j.fuel.2005.02.009
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Unrefined biodiesels containing small quantities of monoglycerides, diglycerides, and triglycerides, and refined biodiesels not containing these glycerides were added to diesel fuel and the resulting lubricity was measured using the High Frequency Reciprocating Rig (HFRR) method. The unrefined biodiesels showed higher lubricity properties than refined biodiesels. The chemical factors influencing the lubricity properties of biodiesels were investigated. Methyl esters and monoglycerides are the main compositions that determine the lubricity of biodiesels that meet international standards. Free fatty acids and diglycerides can also affect the lubricity of biodiesel, but not so much as monoglycerides. Triglycerides almost have no effects on the lubricity of biodiesel. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1601 / 1606
页数:6
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