Abstract The fast pyrolysis of the juice squeezing derived orange waste has been carried out in a continuous pyrolysis bench-scale plant consisting of a conical spouted bed reactor (CSBR). A prior study performed in thermobalance and a kinetic model consisting of a multi-component mechanism allowed determining the contents of pectin (35 wt%), hemicellulose (16.6 wt%) and cellulose (17.1 wt%), but that of lignin could not be satisfactorily determined as its degradation curve overlapped with other compounds such as sugars, proteins and fats. In the bench scale experiments, the bio-oil yields were very high in the 425–500 °C range (close to 55 wt%) due to the suitable features of the CSBR (high heat and mass transfer rates and short residence time of the volatiles), but they are lower for higher temperatures due to the promotion of secondary cracking reactions. Compared to lignocellulosic biomasses, the orange waste produced a bio-oil with more methanol and furfural and less phenolic species, which is an encouraging fact for its stability and valorization by catalytic cracking or steam reforming. The high concentration of CO2 in the gas is a drawback for use for energy production. The char yield (33–27 wt%) was high in the whole range of temperatures studied and its high carbon content (71–73 wt%) and HHV (≈27 MJ kg−1) are suitable for use as fuel.

中文翻译：

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在锥形喷射床反应器中通过快速热解使柑橘废物增值

摘要 在由锥形喷射床反应器 (CSBR) 组成的连续热解小规模工厂中，对榨汁衍生的橙子废物进行了快速热解。先前在热天平中进行的研究和由多组分机制组成的动力学模型允许确定果胶 (35 wt%)、半纤维素 (16.6 wt%) 和纤维素 (17.1 wt%) 的含量，但木质素的含量无法确定由于其降解曲线与其他化合物（如糖、蛋白质和脂肪）重叠，因此确定令人满意。在实验室规模的实验中，由于 CSBR 的合适特性（高传热和传质速率以及短的停留时间），生物油产率在 425-500 °C 范围内非常高（接近 55 wt%）。挥发物），但由于促进二次裂化反应，它们在较高温度下较低。与木质纤维素生物质相比，橙色废物产生的生物油含有更多的甲醇和糠醛，而酚类物质更少，这是一个令人鼓舞的事实，它通过催化裂化或蒸汽重整而具有稳定性和价值。气体中高浓度的 CO2 是用于能源生产的一个缺点。在研究的整个温度范围内，炭产率 (33–27 wt%) 都很高，其高碳含量 (71–73 wt%) 和 HHV (≈27 MJ kg-1) 适合用作燃料。气体中高浓度的 CO2 是用于能源生产的一个缺点。在研究的整个温度范围内，炭产率 (33–27 wt%) 都很高，其高碳含量 (71–73 wt%) 和 HHV (≈27 MJ kg-1) 适合用作燃料。气体中高浓度的 CO2 是用于能源生产的一个缺点。在研究的整个温度范围内，炭产率 (33–27 wt%) 都很高，其高碳含量 (71–73 wt%) 和 HHV (≈27 MJ kg-1) 适合用作燃料。