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Influence of biomass type on the composition of bio-oils from ablative fast pyrolysis

机译:生物质类型对烧火快速热解的生物油组成的影响

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摘要

One of the easiest ways to minimize the overall costs of bio-oil production is to minimize biomass transportation and, thus, pyrolysis should be performed at or close to the biomass original location. Thus, we applied ablative fast pyrolysis (AFP), as the only potentially mobile pyrolysis unit, to convert residual lignocellulosic biomass into bio-oil. Four different biomass types were converted to bio-oils: beech and poplar wood, straw and miscanthus. To study reliably the influence of biomass type on bio-oil yields, physicochemical properties and composition, pyrolysis was carried out at a constant temperature of 550 degrees C. Titrations and spectroscopic methods were used for the characterization of the main oxygenate groups. GC-MS was used for the quantification of more than 120 volatile compounds. Such a thorough analytical study of AFP bio-oils, heretoforemissing in scientific literature, allowed us to reliably discuss the differences in bio-oils' relative to the knowledge of biomass composition. Significant differences between the bio-oils were observed, with the lowest content of carboxylic and carbonyl groups in the straw bio-oil. The amount of carboxylic and phenolic groups in all the bio-oils was in the typical range observed for bio-oils unlike the carbonyls and levoglucosan content, which was lower than typical for biooils from other pyrolysis units.
机译:最小化生物油生产总成本的最简单方法之一是最大限度地减少生物质运输,因此,应在生物质原始位置进行热解或靠近生物质。因此,我们应用烧蚀快速热解(AFP),作为唯一可能的移动热解单元,将残留的木质纤维素生物质转化为生物油。将四种不同的生物量类型转化为生物油:山毛榉和杨树木,稻草和Miscanthus。为了可靠地研究生物质型对生物油产量,物理化学性质和组合物的影响,在550℃的恒定温度下进行热解。滴定和光谱法用于主链基团的表征。 GC-MS用于量化超过120个挥发性化合物。迄今为止在科学文献中的AFP生物油的这种彻底分析研究使我们能够可靠地讨论生物油的差异相对于生物质组成的知识。生物油之间的显着差异被观察到秸秆生物油中的羧酸和羰基的最低含量。与羰基和左葡糖碱含量不同,所有生物油中的羧酸和酚类基团的量在典型的典型范围内观察到来自其他热解单元的生物膜的典型。

著录项

  • 来源
    《Journal of Analytical & Applied Pyrolysis》 |2020年第9期|104838.1-104838.10|共10页
  • 作者单位

    Univ Chem & Technol Prague Dept Petr Technol & Alternat Fuels Tech 5 Prague 16628 6 Czech Republic;

    Univ Chem & Technol Prague Dept Petr Technol & Alternat Fuels Tech 5 Prague 16628 6 Czech Republic;

    Fraunhofer UMSICHT Fraunhofer Inst Environm Safety & Energy Technol Osterfelder Str 3 D-46047 Oberhausen Germany;

    Univ Chem & Technol Prague Dept Petr Technol & Alternat Fuels Tech 5 Prague 16628 6 Czech Republic;

    Univ Chem & Technol Prague Dept Petr Technol & Alternat Fuels Tech 5 Prague 16628 6 Czech Republic;

  • 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

    Ablative fast pyrolysis (AFP); Bio-oil; Quantitative analysis; Carboxylic acids; Carbonyls; Phenols;

    机译:烧蚀快速热解(AFP);生物油;定量分析;羧酸;羰基;苯酚;

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