Refractive Index Technology as a Real Time Viscosity Technique†
Petroleum and Liquid Fossil Fuels Analysis
Published Online: 15 SEP 2006
Copyright © 2000 John Wiley & Sons, Ltd. All rights reserved.
Encyclopedia of Analytical Chemistry
How to Cite
Groetsch, J. G. 2006. Refractive Index Technology as a Real Time Viscosity Technique. Encyclopedia of Analytical Chemistry. .
- Published Online: 15 SEP 2006
This article discusses productivity enhancement which involves using an on-line digital process refractometer to determine the viscosity index (VI) of lube oil stocks. Since lube oils are Newtonian fluids, refractive index (RI) can be related to VI. A real-time continuous measurement of the RI has eliminated sampling, improved product consistency, reduced waste and has helped to optimize the process.