Comparison of two methods of measuring wood pyrolysis tar

被引:62
|
作者
Dufour, A.
Girods, P.
Masson, E.
Normand, S.
Rogaume, Y.
Zoulalian, A.
机构
[1] Gaz France, Res & Dev Div, F-93211 St Denis, France
[2] Univ Nancy, LERMAB, ENSTIB, F-88051 Epinal, France
[3] CRITTBois, F-88051 Epinal, France
关键词
biomass pyrolysis; tar sampling; GC-MS analysis; solid-phase adsorption;
D O I
10.1016/j.chroma.2007.06.049
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
Two methods for the sampling and analysis of tar produced from wood pyrolysis were compared. The first method used a conventional cold-trapping technique in solvent-filled impingers followed by liquid injection. The second one is a new application of multibed solid-phase adsorbent (SPA) tubes followed by thermal desorption (TD). Both methods are based on gas chromatography (GC) coupled with mass spectrometry (MS). Quantification was performed with a well reproducible GC-MS method with three internal deuterated standards. The SPA/TD method offers several advantages. No solvent is required, the detection levels are improved, and gas chromatography separation is easier. Moreover, sampling time is reduced from about I h (for the conventional cold-trapping technique in impingers) to a few seconds. No discrimination was observed between the two sampling methods for the 10 quantified compounds (aromatic compounds from benzene to phenanthrene and phenols) except for benzene. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:240 / 247
页数:8
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