Fluorescence analyzer for lignin
Abstract
A method and apparatus for measuring lignin concentration in a sample of wood pulp or black liquor comprises a light emitting arrangement for emitting an excitation light through optical fiber bundles into a probe which has an undiluted sensing end facing the sample. The excitation light causes the lignin concentration to produce fluorescent emission light which is then conveyed through the probe to analyzing equipment which measures the intensity of the emission light. Measures a This invention was made with Government support under Contract Number DOE: DE-FC05-90CE40905 awarded by the Department of Energy (DOE). The Government has certain rights in this invention.
- Inventors:
-
- Salem, OH
- Hubbard, OH
- Alliance, OH
- Issue Date:
- Research Org.:
- BABCOCK & WILCOX CO
- OSTI Identifier:
- 868802
- Patent Number(s):
- 5216483
- Assignee:
- Babcock & Wilcox Company (New Orleans, LA)
- Patent Classifications (CPCs):
-
D - TEXTILES D21 - PAPER-MAKING D21C - PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- FC05-90CE40905
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- fluorescence; analyzer; lignin; method; apparatus; measuring; concentration; sample; wood; pulp; black; liquor; comprises; light; emitting; arrangement; excitation; optical; fiber; bundles; probe; undiluted; sensing; facing; causes; produce; fluorescent; emission; conveyed; analyzing; equipment; measures; intensity; government; support; contract; de-fc05-90ce40905; awarded; department; energy; rights; optical fiber; excitation light; light emitting; black liquor; government support; lignin concentration; wood pulp; fiber bundle; fiber bundles; emission light; fluorescent emission; /356/162/250/
Citation Formats
Berthold, John W, Malito, Michael L, and Jeffers, Larry. Fluorescence analyzer for lignin. United States: N. p., 1993.
Web.
Berthold, John W, Malito, Michael L, & Jeffers, Larry. Fluorescence analyzer for lignin. United States.
Berthold, John W, Malito, Michael L, and Jeffers, Larry. Fri .
"Fluorescence analyzer for lignin". United States. https://www.osti.gov/servlets/purl/868802.
@article{osti_868802,
title = {Fluorescence analyzer for lignin},
author = {Berthold, John W and Malito, Michael L and Jeffers, Larry},
abstractNote = {A method and apparatus for measuring lignin concentration in a sample of wood pulp or black liquor comprises a light emitting arrangement for emitting an excitation light through optical fiber bundles into a probe which has an undiluted sensing end facing the sample. The excitation light causes the lignin concentration to produce fluorescent emission light which is then conveyed through the probe to analyzing equipment which measures the intensity of the emission light. Measures a This invention was made with Government support under Contract Number DOE: DE-FC05-90CE40905 awarded by the Department of Energy (DOE). The Government has certain rights in this invention.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1993},
month = {1}
}
Works referenced in this record:
Laser Excited Fluorescence Studies Of Black Liquor
conference, October 1986
- Horvath, J. J.; Semerjian, H. G.
- 1986 Quebec Symposium, SPIE Proceedings
A modified fluorometric method for measurement of lignin sulfonates and its in situ application in natural waters
journal, December 1974
- Wilander, A.; Kvarnäs, H.; Lindell, T.
- Water Research, Vol. 8, Issue 12
A procedure for tracing of kraft mill effluent from an ocean outfall by constituent fluorescence
journal, August 1971
- Baumgartner, D. J.; Feldman, M. H.; Gibbons, C. L.
- Water Research, Vol. 5, Issue 8
Contribution to On-Line Kraft Pulping Control
journal, January 1980
- Capart, R.; Obese-Jecty, K.; Le Cardinal, G.
- IFAC Proceedings Volumes, Vol. 13, Issue 4