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Proceedings Paper

Measurement of sucrose and ethanol concentrations in process streams and effluents of sugarcane bioethanol industry by optical fiber sensor
Author(s): Eric Fujiwara; Eduardo Ono; Tarcio P. Manfrim; Juliana S. Santos; Carlos K. Suzuki
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Paper Abstract

The measurement of process streams and effluents from sugar-ethanol industry by using optical fiber sensor based on Fresnel reflection principle is reported. Firstly, binary sucrose-water and ethanol-water solutions were measured in order to determine the calibration curves. Secondly, the co-products from various processing stages were analyzed in order to identify the sucrose or ethanol concentration. The absolute error was calculated by comparison between the nominal concentration values obtained by plant laboratory analysis and the sensor response, yielding errors ≤ 5 wt% and ≤ 5 vol% for sucrose and ethanol content, respectively. The fiber sensor provided reliable results even for samples with more complex compositions than pure sucrose or ethanol solutions, with perspectives of application on the several stages of the plant facility.

Paper Details

Date Published: 17 May 2011
PDF: 4 pages
Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77535I (17 May 2011); doi: 10.1117/12.885096
Show Author Affiliations
Eric Fujiwara, Univ. Estadual de Campinas (Brazil)
Eduardo Ono, Univ. Estadual de Campinas (Brazil)
Tarcio P. Manfrim, Univ. Estadual de Campinas (Brazil)
Juliana S. Santos, Univ. Estadual de Campinas (Brazil)
Carlos K. Suzuki, Univ. Estadual de Campinas (Brazil)


Published in SPIE Proceedings Vol. 7753:
21st International Conference on Optical Fiber Sensors
Jacques Albert; Wojtek J. Bock, Editor(s)

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