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首页> 外文期刊>Combustion and Flame >Characterisation of submicron particles produced during oxygen blown entrained flow gasification of biomass
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Characterisation of submicron particles produced during oxygen blown entrained flow gasification of biomass

机译：吹氧夹带生物质流气化过程中产生的亚微米颗粒的表征

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摘要

In this paper submicron particles sampled after the quench during 200 kW, 2 bar(a) pressurised, oxygen blown gasification of three biomass fuels, pure stem wood of pine and spruce, bark from spruce and a bark mixture, have been characterised with respect to particle size distribution with a low pressure cascade impactor. The particles were also characterised for morphology and elemental composition by a combination of scanning electron microscopy/energy dispersive spectroscopy (SEM/EDS) and high resolution transmission electron microscopy/energy dispersive spectroscopy/selected area electron diffraction pattern (HRTEM/EDS/SAF.D) techniques. The resulting particle concentration in the syngas after the quench varied between 46 and 289 mg/Nm~3 consisting of both carbon and easily volatile ash forming element significantly depending on the fuel ash content. Several different types of particles could be identified from classic soot particles to pure metallic zinc particles depending on the individual particle relation of carbon and ash forming elements. The results also indicate that ash forming elements and especially zinc interacts in the soot formation process creating a particle with shape and microstructure significantly different from a classical soot particle.
机译：本文对200 kW淬火后采样的亚微米级颗粒进行了表征，其中包括以下三种生物质燃料的2 bar（a）加压，吹氧气化三种生物质燃料，松木和云杉的纯茎木，云杉和树皮混合物的树皮。低压级联冲击器的粒度分布。还通过扫描电子显微镜/能量色散光谱法（SEM / EDS）和高分辨率透射电子显微镜/能量色散光谱法/选定区域电子衍射图谱（HRTEM / EDS / SAF.D）的组合对颗粒的形态和元素组成进行了表征）技术。淬火后合成气中所得的颗粒浓度在46至289 mg / Nm〜3之间变化，这主要取决于碳和易挥发的灰分形成元素，具体取决于燃料灰分含量。从典型的烟灰颗粒到纯金属锌颗粒，可以确定几种不同类型的颗粒，具体取决于碳和灰分形成元素的单独颗粒关系。结果还表明，灰分形成元素，尤其是锌在烟灰形成过程中相互作用，从而形成了形状和微观结构与传统烟灰颗粒明显不同的颗粒。

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  • 来源
    《Combustion and Flame》 |2014年第7期|1923-1934|共12页
  • 作者

    Henrik Wiinikka; Fredrik Weiland; Esbjoern Pettersson; Olov OEhrman; Per Carlsson; Jesper Stjernberg;

  • 作者单位

    Energy Technology Centre, Box 726, S-941 28 Pileae, Sweden,Luleae University of Technology, Division of Energy Science, S-971 87 Luleae, Sweden;

    Energy Technology Centre, Box 726, S-941 28 Pileae, Sweden,Luleae University of Technology, Division of Energy Science, S-971 87 Luleae, Sweden;

    Energy Technology Centre, Box 726, S-941 28 Pileae, Sweden;

    Energy Technology Centre, Box 726, S-941 28 Pileae, Sweden;

    Energy Technology Centre, Box 726, S-941 28 Pileae, Sweden;

    Luleae University of Technology, Division of Material Science, S-971 87 Luleae, Sweden,LKAB, S-971 28 Luleae, Sweden;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biomass; Gasification; Soot; HRTEM; SAED; Zinc;

    机译：生物质气化;煤烟;HRTEM;SAED;锌锌;

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