title: A rapid and accurate method for on-line measurement of straw-coal blends using near infrared spectroscopy.
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.
authors.affiliation: College of Engineering, China Agricultural University, Beijing 100083, PR China.
authors.forename: Cheng
authors.initials: C
authors.lastname: He
authors.forename: Longjian
authors.initials: L
authors.lastname: Chen
authors.forename: Zengling
authors.initials: Z
authors.lastname: Yang
authors.forename: Guangqun
authors.initials: G
authors.lastname: Huang
authors.forename: Na
authors.initials: N
authors.lastname: Liao
authors.forename: Lujia
authors.initials: L
authors.lastname: Han
mesh_terms: D018533:Biomass; D003031:Coal; D019265:Spectroscopy, Near-Infrared / Q000379:methods*; D014908:Triticum
chemical_list: D003031:Coal