The effects of temperature and shear rate on the apparent viscosity of Nigerian oil sand bitumen

被引：42
|
作者：
Ukwuoma, O
Ademodi, B
机构：
[1] Enugu State Univ Sci & Technol, Dept Chem Engn, Enugu, Nigeria
[2] Obafemi Awolowo Univ, Dept Chem Engn, Ile Ife, Nigeria
来源：
FUEL PROCESSING TECHNOLOGY | 1999年 / 60卷 / 02期
关键词：
oil sand bitumen; Nigeria; viscosity;
D O I：
10.1016/S0378-3820(99)00014-4
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The apparent viscosities of Nigerian oil sand bitumen were measured over a temperature range of 50-110 degrees C and a shear rate range of 60-320 s(-1). Apart from temperature which is the most important variable influencing the viscosity of a liquid, the viscosities of the bitumen are affected by shearing effects. The apparent viscosity of the bitumen depended on the rate of shear at which it is measured, that is, it has an unlimited number of apparent viscosity values as the shear rate was varied. The shearing effects decreased as the temperature increased; that is, the bitumen became more Newtonian in the higher temperature region. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
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页码：95 / 101
页数：7
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