Fast Analysis of  Bio-oil Properties by Fourier Transform Infrared Spectroscopy

HE Ronghai; YE Xiaofei; LIU Lu

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Fast Analysis of Bio-oil Properties by Fourier Transform Infrared Spectroscopy

HE Ronghai 1 * #,YE Xiaofei 2,LIU Lu 2

1.School of Food and biological Engineering,Jiangsu University, JiangSu ZhenJiang 212013

2.Department of Biosystems Engineering and Soil Science, The University of Tennessee, Knoxville, 37996, USA

*Correspondence author

#Submitted by

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Funding: Doctoral Fund of Ministry of Education of China （No.No. 20093227120012）

Opened online: 5 December 2012

Accepted by: none

Citation: HE Ronghai,YE Xiaofei,LIU Lu.Fast Analysis of Bio-oil Properties by Fourier Transform Infrared Spectroscopy[OL]. [ 5 December 2012] http://en.paper.edu.cn/en_releasepaper/content/4498187

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

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