Characterization of bio-oils in chemical families

被引：394

作者：

Garcia-Perez, M.

Chaala, A.

Pakdel, H.

Kretschmer, D.

Roy, C.

机构：

[1] Pyrovac Int, Sillery, PQ G1T 2M4, Canada

[2] Univ Laval, Dept Chem Engn, Quebec City, PQ G1K 7P4, Canada

[3] Univ Laval, Dept Mech Engn, Quebec City, PQ G1K 7P4, Canada

[4] SEREX, Amqui, PQ, Canada

来源：

BIOMASS & BIOENERGY | 2007年 / 31卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

bio-oil; composition; pyrolysis; GC-MS; TG; GPC;

D O I：

10.1016/j.biombioe.2006.02.006

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

This paper describes an analytical approach to determine the chemical composition of bio-oils in terms of macro-chemical families. Bio-oils from the vacuum pyrolysis of softwood bark and hardwood were first fractionated using solvent extraction. Fractions obtained were then characterized using GC-MS, thermogravimetric techniques (TG) and Gel Permeation Chromatography (GPC). Thermogravimetric and molar mass distribution curves of each fraction were interpreted in terms of macro-families applying curve-fitting procedures. The composition of the different macro-fractions obtained was in agreement using both methods. The proposed procedure enables a thorough description of bio-oil composition as a mixture of water, monolignols, polar compounds with moderate volatility, sugars, extractive-derived compounds, heavy polar and non-polar compounds, MeOH-toluene insolubles and volatile organic compounds. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：222 / 242

页数：21

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