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U.S. Department of Energy
Office of Scientific and Technical Information

Development of a prototype lignin concentration sensor

Technical Report ·
DOI:https://doi.org/10.2172/6744692· OSTI ID:6744692
The US Department of Energy, Office of Industrial Technologies, is sponsoring a research and development program for the development of a real-time, in-situ sensor to measure the concentration of lignin in wood pulp. The program is composed of phase I showing feasibility which is now complete, phase II for development and testing of a Field Prototype, in progress, Phase III commercialization. Phase I work (funded entirely by B W) demonstrated a correlation between the fluorescence intensity and lignin concentration (as measured by TAPPI procedure, T 236 hm-85 Kappa Number of Pulp) for undiluted wood pulp samples. In Phase II, a laboratory test program directed at characterizing the fluorescence of wood pulp has been conducted as a prelude to the design of a prototype sensor. The current report summarizes the testing completed in Phase I and documents the Phase II laboratory testing completed through December 1991. Future Phase II efforts include additional laboratory testing, design and fabrication of a prototype sensor, and field testing of the prototype sensor. Phase III of the program will concentrate on the incorporation of the sensor into a control system and commercialization of the sensor.
Research Organization:
Babcock and Wilcox Co., Alliance, OH (United States). Research Center
Sponsoring Organization:
DOE; USDOE, Washington, DC (United States)
DOE Contract Number:
FC05-90CE40905
OSTI ID:
6744692
Report Number(s):
DOE/CE/40905-32; ON: DE93009767
Country of Publication:
United States
Language:
English