An Optical Approach To The Measurement Of The Lignin Content Of Kraft Pulps Part A: Using Ultraviolet Measurements

R G Bentley

doi:10.1117/12.938753

23 October 1986 An Optical Approach To The Measurement Of The Lignin Content Of Kraft Pulps Part A: Using Ultraviolet Measurements

R G Bentley

Author Affiliations +

Proceedings Volume 0665, Optical Techniques for Industrial Inspection; (1986) https://doi.org/10.1117/12.938753
Event: 1986 Quebec Symposium, 1986, Quebec City, Canada

Abstract

A study of the light absorption behaviour of kraft pulp suspensions has been carried out. The purpose of the study was to determine whether the measurement of the ultra-violet light absorption coefficient could be exploited as a basis for the development of an on-line lignin content sensor. In order to obtain this measurement, it was first found necessary to compensate for the effects of the pulp light scattering and consistency variation. A method was developed to provide this compensation; however, it appears that the measurement is also significantly affected by species variation.

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R G Bentley "An Optical Approach To The Measurement Of The Lignin Content Of Kraft Pulps Part A: Using Ultraviolet Measurements", Proc. SPIE 0665, Optical Techniques for Industrial Inspection, (23 October 1986); https://doi.org/10.1117/12.938753

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