A rapid and accurate method for on-line measurement of straw-coal blends using near infrared spectroscopy
A rapid and accurate method for on-line measurement of straw-coal blends using near infrared spectroscopy
复制标题
近红外光谱快速准确在线测量秸秆煤混合料的方法
DOI：
10.1016/j.biortech.2012.01.051
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发表时间：
2012-04-01
影响因子：
11.4
通讯作者：
Han, Lujia
中科院分区：
文献类型：
--
作者：
He, Cheng;Chen, Longjian;Han, Lujia
生物质-煤混合燃料的在线测量对于制定合理的生物质热电联产补贴政策具有重要意义。利用近红外反射光谱(NIRS)对秸秆、煤和秸秆煤混和物进行了在线定性分析和秸秆煤混和物中秸秆含量的在线定量分析。共制备了80个秸秆样品、9个煤样、120个秸秆含量在70%~99%的秸秆煤混和样品(混煤1)和120个秸秆含量在1%~30%的秸秆煤混和样品(混和2)。光谱是使用Thermo Fisher科学南极目标FT-NIR光谱仪获得的。采用线性判别分析方法进行定性分析，秸秆、混杂1、混杂2和煤的正确分类率分别为89.87%、79.66%、94.92%和100%。定量分析模型的性能标准差与标准差之比为3.52。结果表明，近红外光谱技术是一种快速、准确的秸秆配煤在线检测方法。(C)2012爱思唯尔有限公司。保留所有权利。
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. (C) 2012 Elsevier Ltd. All rights reserved.