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

作者：He, Cheng; Chen, Longjian; Yang, Zengling; Huang, Guangqun; Liao, Na; Han, Lujia^*

来源：Bioresource Technology, 2012, 110: 314-320.

DOI：10.1016/j.biortech.2012.01.051

• Near infrared spectroscopy (NIRS)
• Co-firing
• Biomass
• Straw
• Coal

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% (blendsl) 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.

• 出版日期2012-4
• 单位中国农业机械化科学研究院; 中国农业大学