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Linking laboratory data with pilot scale entrained flow coal gasification performance. Part 2: Pilot scale testing

机译:将实验室数据与中试夹带流煤气化性能联系起来。第2部分:中试规模测试

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摘要

By exploring the links between laboratory-scale gasification data (e.g. slag viscosity measurements, char reactivity considerations) and the performance of the same coals under realistic pilot-scale conditions, we are provided with a dataset that allow us to refine coal test procedures for entrained flow gasification, understand the entrained flow gasification process in significantly more detail than previously, and gain some new insight into how coal reactivity and slag viscosity properties interact to define operating envelopes for specific gasification technologies. The first paper in this two-part series presented a detailed characterisation of a suite of Australian coals using laboratory-scale gasification facilities. This paper presents gasification data obtained from pilot-scale testing of these same coals, and explores the links between laboratory data, coal assessments made using these data, and the performance of the coals under realistic conditions. The results demonstrate a high degree of consistency between laboratory indications of coal reactivity and coal gasification behaviour at pilot scale. This work also demonstrates the impact of interactions between coal conversion properties and slag formation and flow behaviour, and how these interactions dictate operational parameters for the gasifier.
机译:通过探索实验室规模的气化数据(例如,炉渣粘度测量,焦炭反应性考虑因素)与相同煤在实际中试规模条件下的性能之间的联系,我们获得了一个数据集,该数据集使我们能够改进夹带煤的测试程序气流气化,比以前更详细地了解气流床气化过程,并获得有关煤反应性和炉渣粘度特性如何相互作用以定义特定气化技术运行范围的新见解。这个由两部分组成的系列文章中的第一篇文章详细介绍了使用实验室规模的气化设施对一套澳大利亚煤炭的表征。本文介绍了从这些相同煤的中试测试获得的气化数据,并探讨了实验室数据,使用这些数据进行的煤评估以及在实际条件下煤的性能之间的联系。结果表明,在中试规模下,煤炭反应性和煤气化行为的实验室指标之间具有高度的一致性。这项工作还证明了煤转化特性与炉渣形成和流动行为之间相互作用的影响,以及这些相互作用如何决定气化炉的运行参数。

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