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Refractive Index Technology as a Real Time Viscosity Technique

Petroleum and Liquid Fossil Fuels Analysis

  1. John G. Groetsch Jr

Published Online: 15 SEP 2006

DOI: 10.1002/9780470027318.a1839

Encyclopedia of Analytical Chemistry

Encyclopedia of Analytical Chemistry

How to Cite

Groetsch, J. G. 2006. Refractive Index Technology as a Real Time Viscosity Technique. Encyclopedia of Analytical Chemistry. .

Author Information

  1. K-Patents, Inc., Naperville, USA

Publication History

  1. Published Online: 15 SEP 2006

Abstract

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.