Branched chain derivatives of alkyl oleates: Tribological, rheological, oxidation, and low temperature properties

被引：49

作者：

Moser, Bryan R. ^{[1
]}

Erhan, Sevim Z. ^{[1
]}

机构：

[1] USDA ARS, Natl Ctr Agr Utilizat Res, Peoria, IL 61604 USA

来源：

FUEL | 2008年 / 87卷 / 10-11期

关键词：

additives; biodiesel; branched chain ethers;

D O I：

10.1016/j.fuel.2008.01.005

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：

We report the evaluation of four previously prepared oleochemical branched chain ethers (1-4) and soybean oil methyl esters (SME) against cloud point, pour point, oxidation stability, kinematic viscosity, specific gravity, lubricity, and surface tension. Ethers 1-4 exhibited excellent low temperature, oxidation stability, and lubricity behavior; however, at low blend levels (0.5, 1.0, 2.0 wt%) in SME, 1-4 had minimal impact on cloud point and pour point of SME. The specific gravity and surface tension behavior of 1-4 are nearly identical to SME. Ethers 1-4 displayed increased viscosity when compared to SME, but were still within ASTM D 6751 specifications at low blend levels in SME. Conversely, ethers 3 and 4 at 2.0%, in SME were out of specification for kinematic viscosity in EN 14214. Both SME and 1-4 exhibited excellent tribological properties, as evidenced by HFRR wear scar behavior well within prescribed ASTM and CEN petrodiesel specifications. Published by Elsevier Ltd.

引用

页码：2253 / 2257

页数：5

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