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Self-sustaining smouldering combustion of waste: A review on applications, key parameters and potential resource recovery
Fuel Processing Technology ( IF 7.5 ) Pub Date : 2020-08-01 , DOI: 10.1016/j.fuproc.2020.106425
Hons K. Wyn , Muxina Konarova , Jorge Beltramini , Greg Perkins , Luis Yermán

Smouldering combustion, a phenomenon typically researched from a fire-safety perspective has recently garnered attention for its applications as a soil remediation method and more recently as a treatment process for wastes with high moisture content. This paper aims to review the fuel gas production from thermochemical conversion processes involving self-sustaining smouldering combustion. It also provides an insight into the processes, reactor characteristics, key parameters, applications and gas emissions. Smouldering combustion is a highly energy-efficient, slow, low-temperature, and flameless form of combustion that propagates through a porous fuel. Since smouldering operates under oxygen-limiting conditions, it has the potential to produce gas with fuel characteristics. The production of solid products (such as biochar) also has potential in smouldering combustion due to its characteristically slow heating rate and propagation velocities. However, this same characteristic is not ideal for the production of liquid products. This paper shows that while smouldering combustion was shown to be a robust treatment process for wastes with high moisture content, depending on the feedstock, there are potential for valuable by-products to be produced alongside the treatment process. This research however is still in its infancy, and further research is required particularly for its potential for production of gas products.

中文翻译:

废物的自持阴燃燃烧:应用综述、关键参数和潜在资源回收

阴燃燃烧是一种典型的从消防安全角度研究的现象,最近因其作为土壤修复方法的应用以及最近作为高水分废物的处理过程而受到关注。本文旨在回顾涉及自持阴燃燃烧的热化学转化过程的燃气生产。它还提供对工艺、反应器特性、关键参数、应用和气体排放的深入了解。阴燃燃烧是一种高能效、缓慢、低温和无焰的燃烧形式,它通过多孔燃料传播。由于阴燃在氧气限制条件下运行,因此有可能产生具有燃料特性的气体。由于其特有的缓慢加热速率和传播速度,固体产品(例如生物炭)的生产也具有阴燃燃烧的潜力。然而,这种相同的特性对于液体产品的生产并不理想。本文表明,虽然阴燃燃烧被证明是处理高水分废物的有效方法,但取决于原料,在处理过程中可能会产生有价值的副产品。然而,这项研究仍处于起步阶段,需要进一步研究,特别是其生产气体产品的潜力。本文表明,虽然阴燃燃烧被证明是处理高水分废物的有效方法,但取决于原料,在处理过程中可能会产生有价值的副产品。然而,这项研究仍处于起步阶段,需要进一步研究,特别是其生产气体产品的潜力。本文表明,虽然阴燃燃烧被证明是处理高水分废物的有效方法,但取决于原料,在处理过程中可能会产生有价值的副产品。然而,这项研究仍处于起步阶段,需要进一步研究,特别是其生产气体产品的潜力。
更新日期:2020-08-01
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