Trace metal release during wood pyrolysis

Thy P.; Barfod G. H.; Cole A. M.; Brown E. L.; Jenkins B. M.; Lesher C. E.

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Trace metal release during wood pyrolysis

机译：木材热解过程中微量金属的释放

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The use of a differential thermal analyzer with an on-line inductively coupled plasma mass spectrometer allows continuous and near-synchronous analysis of mass loss and elemental release patterns during pyrolysis of biomass and other feedstock. Applied to a mixed-conifer softwood, the results show that the released elements can be divided into those that are dominantly released during decomposition ( 250-475 degrees C) and those that are dominantly released at high temperature ( 900-1300 degrees C), thus reflecting their different roles in the organic matrix. Production and analysis of a 950 degrees C pyrolysis wood ash allows the bulk partition between flue gas (including entrained particles) and solid char to be evaluated, mass balance to be demonstrated, and a semi-quantitative calibration to be suggested. Our exploratory experiment demonstrates that the present approach can provide reliable insight and semi-quantitative modeling tools useful for elucidating the role and behavior of many elements during thermal treatment of biomass. (C) 2017 Elsevier Ltd. All rights reserved.

机译：将差示热分析仪与在线感应耦合等离子体质谱仪结合使用，可以在生物质和其他原料热解过程中连续且几乎同步地分析质量损失和元素释放模式。应用到混合针叶树针叶木中，结果表明，释放的元素可以分为在分解过程中主要释放的元素（250-475摄氏度）和在高温下主要释放的元素（900-1300摄氏度），从而反映出它们在有机基质中的不同作用。通过生产和分析950摄氏度的热解木灰，可以评估烟气（包括夹带的颗粒）和固体炭之间的大部分分配，可以证明质量平衡，并可以建议进行半定量校准。我们的探索性实验表明，本方法可提供可靠的见解和半定量建模工具，可用于阐明生物质热处理过程中许多元素的作用和行为。（C）2017 Elsevier Ltd.保留所有权利。

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来源
《Fuel》 |2017年第1期|548-556|共9页
作者
Thy P.; Barfod G. H.; Cole A. M.; Brown E. L.; Jenkins B. M.; Lesher C. E.;
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作者单位

Univ Calif Davis, Dept Earth & Planetary Sci, One Shields Ave, Davis, CA 95616 USA|Univ Aarhus, Dept Geosci, Hoegh Guldbergs Gade 2, DK-8000 Aarhus C, Denmark;

Univ Aarhus, Dept Geosci, Hoegh Guldbergs Gade 2, DK-8000 Aarhus C, Denmark;

Univ Calif Davis, Interdisciplinary Ctr Plasma Mass Spectrometry, One Shields Ave, Davis, CA 95616 USA;

Univ Aarhus, Dept Geosci, Hoegh Guldbergs Gade 2, DK-8000 Aarhus C, Denmark;

Univ Calif Davis, Dept Biol & Agr Engn, One Shields Ave, Davis, CA 95616 USA;

Univ Calif Davis, Dept Earth & Planetary Sci, One Shields Ave, Davis, CA 95616 USA|Univ Aarhus, Dept Geosci, Hoegh Guldbergs Gade 2, DK-8000 Aarhus C, Denmark;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Wood fuel; Thermal treatment; Pyrolysis; Flue gas; Trace elements; Elemental partitioning;

机译：木材燃料;热处理;热解;烟气;痕量元素;元素分配;

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Trace metal release during wood pyrolysis

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