Determining the tendency of motor oils to form low-temperature deposits

被引：0

作者：

Levin, A. Ya. ^{[1
]}

Trofimova, G. L. ^{[1
]}

Budanovskaya, G. A. ^{[1
]}

Ivanova, O. V. ^{[1
]}

Evstaf'ev, V. P. ^{[1
]}

机构：

[1] IM Gubkin Russian State Univ Oil & Gas, Moscow, Russia

来源：

CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS | 2009年 / 45卷 / 03期

关键词：

Sludge; Dithiophosphate; Sludge Formation; Zinc Dialkyldithiophosphate; Working Engine;

D O I：

10.1007/s10553-009-0125-7

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：

Motor oil has the tendency to form low-temperature deposits, or sludge, which may be formed in the engine when the automobile operates with conditions of frequent changes in speed and in temperature differences, with such sludge representing a dispersion of aggregated tarry particles of complicated composition. There are methods in various forms that attempt to simulate sludge formation in a working engine. The method includes some stages in order to more fully reproduce the factors under laboratory conditions that influence sludge formation in a working engine, and to produce a closer approximation to an actual sludge for the dispersed phase formed in the laboratory equipment. These stages include catalytic oxidation of the oil in the presence of a solution of sulfuric acid and air in a laboratory equipment forming part of nonstandard laboratory methods, mixing the oxidized oil with water, and separating the sludge, drying it, and determining the amount. The method was applied to estimate the sludge formation tendencies for motor oils of various kinds.

引用

页码：217 / 219

页数：3