A rapid and accurate method for on-line measurement of straw-coal blends using near infrared spectroscopy

Bioresource Technology
Cheng HeLu-jia Han

Abstract

On-line measurement of biomass-coal blends is very important for developing appropriate subsidy policies for biomass co-firing power generation. Near infrared reflectance spectroscopy (NIRS) was used for on-line qualitative analysis of straw, coal and straw-coal blends and on-line quantitative analysis of straw content of straw-coal blends. A total of 80 straw samples, nine coal samples, 120 straw-coal blends samples with straw content from 70% to 99% (blends1) and 120 straw-coal blends samples with straw content from 1% to 30% (blends2) were prepared. Spectra were obtained using a Thermo Fisher Scientific Antaris Target FT-NIR spectrometer. Linear discriminant analysis method was used for qualitative analysis, correct classification percentages of straw, blends1, blends2 and coal were 89.87%, 79.66%, 94.92% and 100%, respectively. The ratio of standard error of performance to standard deviation (RPD) of quantitative analysis model was 3.52. It is concluded NIRS is a rapid and accurate method for on-line measurement of straw-coal blends.

References

Oct 5, 2007·Journal of Environmental Sciences (China)·Jian-jun XieWei-gang Lin
Nov 30, 2010·Talanta·Germano VerasEveraldo Paulo de Medeiros
Mar 15, 2011·Analytica Chimica Acta·Roman M Balabin, Ravilya Z Safieva

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