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An Evaluation of Char Reactivity and Ash Properties in Biomass Gasification:Fundamental Processes in Biomass Gasification

机译：生物质气化中炭反应性和灰分性质的评价：生物质气化的基本过程

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Sørensen Lasse Holst; Fjellerup Jan Søren; Henriksen Ulrik Birk; Moilanen Antero; Winther Erik;
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年度 2000
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正文语种 eng
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1. Understanding the Effect of Different Biomass Ash Additions on Pyrolysis Product Distribution, Char Physicochemical Characteristics, and Char Gasification Reactivity of Bituminous Coal [J] . Wei Juntao, Guo Qinghua, Ding Lu, Energy & fuels . 2019,第APRa期

机译：了解不同生物质灰分添加量对烟煤的热解产物分布，焦炭理化特性和焦炭气化反应性的影响
2. Gasification of woody biomass char with CO2: The catalytic effects of K and Ca species on char gasification reactivity [J] . Keiichirou Mitsuoka, Shigeya Hayashi, Hiroshi Amano Fuel Processing Technology . 2011,第1期

机译：木质生物质炭与CO2的气化：K和Ca物种对炭气化反应性的催化作用
3. The carbon dioxide gasification characteristics of biomass char samples and their effect on coal gasification reactivity during co-gasification [J] . Mafu Lihle D., Neomagus Hein W. J. P., Everson Raymond C., Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies . 2018,第期

机译：生物量焦炭样品的二氧化碳气化特性及其对共同气化过程中煤气化反应性的影响
4. Physic-chemical properties characterization of gasification ash to understand biomass gasification processes [C] . Q. Cao, S. Huang, S.Y. Wu, International Conference on Energy Equipment Science and Engineering . 2015

机译：气化灰的物理化学性质表征，了解生物量气化过程
5. Utilization of char from biomass gasification in catalytic applications [D] . Klinghoffer, Naomi. 2013

机译：来自生物质气化的焦炭在催化应用中的利用
6. Valorization of Char From Biomass Gasification as Catalyst Support in Dry Reforming of Methane [O] . Vittoria Benedetti, Snehesh Shivananda Ail, Francesco Patuzzi, 1970

机译：生物质气化中焦炭的重整作为甲烷干重整中的催化剂载体
7. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

机译：本文提供了一个新的数值模型，该模型描述了暴露于高太阳热通量（高于1 / MW / m2）的热厚木材样品的行为。基于无量纲数的初步研究用于对问题进行分类并支持模型构建假设。然后，提出了一种基于质量，动量和能量平衡方程的模型。这些方程式与液体蒸汽干燥模型和假物种生物质降解模型耦合。通过与以前的实验研究进行比较，初步结果表明，这些方程不足以准确预测高太阳热通量下的生物量行为。的确，在样品暴露的表面上形成了充当辐射屏蔽层的炭层。除了这套经典的方程式之外，还必须考虑到辐射向介质的渗透。此外，由于生物质中含有水，因此还必须在炭蒸气汽化后进行连续的介质变形。最后，通过添加这两种策略，该模型能够在一定范围的样品初始水分含量下暴露于高辐射热通量的情况下，正确捕获生物质的降解。还得出了在高太阳热通量下生物量行为的其他见解。样品内部同时存在干燥，热解和气化前沿。这三个热化学前沿的共存会导致样品干燥产生的蒸汽产生焦炭气化，这是介质烧蚀的主要现象。

An Evaluation of Char Reactivity and Ash Properties in Biomass Gasification:Fundamental Processes in Biomass Gasification

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