The study explored the oxygen‐enriched combustion behavior of torrefied waste wood pellets in a fluidized bed. For biomass torrefaction, three indexes, namely energy yield index (EY), proximate analysis‐based index (PA), and effective comprehensive combustion index (S_mix), are used to present the optimal conditions from each viewpoint. Four operating parameters, incorporating torrefaction temperature, residence time and nitrogen flow rate, were taken into consideration in this study. The signal‐to‐noise ratios of each parameter were evaluated to examine the influencing impact of different factors. The optimal results were employed in the investigation of biochar combustion using a laboratory‐scale fluidized‐bed reactor with oxygen lancing. Oxygen was injected into different zones of the fluidized bed to investigate its influence on combustion efficiency. The parameters of biochar combustion optimization include torrefied materials, fluidized‐bed temperature, oxygen inlet position, and oxygen concentration. The total fluidized‐bed efficiency and the volatile combustion ratio were evaluated.

中文翻译：

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最佳焙烧木屑的流化床富氧燃烧最佳参数的研究

这项研究探索了流化床中经过焙烧的废木颗粒的富氧燃烧行为。对于生物质干法烘焙，有三个指标，即能量产率指标（EY），基于最近分析的指标（PA）和有效综合燃烧指标（S _mix），用于从各个角度展示最佳条件。在这项研究中考虑了四个操作参数，包括焙烧温度，停留时间和氮气流速。评估每个参数的信噪比，以检查不同因素的影响。使用带有氧气喷枪的实验室规模流化床反应器，在生物炭燃烧研究中采用了最佳结果。将氧气注入流化床的不同区域以研究其对燃烧效率的影响。生物炭燃烧优化的参数包括烘焙材料，流化床温度，氧气入口位置和氧气浓度。评估了总流化床效率和挥发性燃烧比。