Fast Analysis of Bio-oil Properties by Fourier Transform Infrared Spectroscopy
首发时间:2012-12-05
Abstract:Over 400 organic compounds exist in bio-oil, and the analysis of bio-oil physicochemical properties is tedious, time-consuming, and expensive. This study investigated the feasibility of using Fourier Transform Infrared Attenuated Total Reflection (FTIR-ATR) in rapid analysis of bio-oil by using pre-processing technique and principal component analysis (PCA) method to obtain multiple physical and chemical properties of bio-oil. Switchgrass bio-oil samples produced under nine different pyrolysis conditions were used. Pearson correlation analysis shows strong relationship between chemical compounds and between some physical properties. PCA method can well separate bio-oil samples based on their physicochemical properties. Second derivative spectra pretreatment can remarkably eliminate physical effects of bio-oil FTIR spectra, and PCA score plot shows the discrimination in different bio-oil samples. Such a rapid analysis would lead to better quality control in bio-oil production and allow insight for bio-oil upgrading.
keywords: biomass energy Bio-oil physicochemical property FTIR-ATR chemometrics
点击查看论文中文信息
傅里叶变换红外分析法快速检测生物油品质研究
摘要:生物油中有400多种有机化合物,分析生物油的理化性质是繁琐、费时和昂贵的工作。本研究利用基于主成分分析(PCA)预处理技术的傅里叶变换红外衰减全反射(FTIR - ATR),快速分析生物油的物理和化学特性。九种不同热解条件下制备的柳枝稷生物样品用于分析。皮尔森相关分析表明,FTIR结果与油品质有较好的相关性。二阶导数光谱预处理能显著消除生物油红外光谱的物理影响。PCA分析图显示出不同生物油样品之间的区别。这种快速分析方法可对生物油生产提供更好的控制,并可为生物油提质过程提供测试手段。
关键词: 生物质能源 生物油 物理化学性质 傅里叶变换红外光谱-全反射光谱 化学计量学
论文图表:
引用
No.****
同行评议
勘误表
傅里叶变换红外分析法快速检测生物油品质研究
评论
全部评论0/1000