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首页> 外文期刊>American Journal of Chemical Engineering >Composite Pyrolysis of Biomass and Plastic for High-quality Fuel Oil over HZSM-5
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Composite Pyrolysis of Biomass and Plastic for High-quality Fuel Oil over HZSM-5

机译：HZSM-5高品质燃料油的生物质和塑料复合热解

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Catalytic co-pyrolysis of biomass and plastic is a promising technology to their resource recovery and energy conversion. For the traditional technologies, the two feedstocks are mechanically mixed (MM) to the co-conversion reaction. However, there are disadvantages in the MM mode process, such as mixing nonuniformity and inconvenient transportation of feedstocks, poor heat and mass transfer during pyrolysis and low yield of effective products. To solve the above issues, a composite pyrolysis of biomass and plastic for high-quality fuel oil was innovatively studied in this paper at a lab-scale fixed bed reactor using HZSM-5 as a catalyst. Through procedures including mechanical mixing, hot pressing and crushing granulation, a composite molding (CM) sample was prepared. Then the optimal conditions for fuel oil production of the CM sample were explored, and under which conditions products distribution were compared with pyrolysis from the common MM sample. And possible mechanism for high-quality fuel oil generation of the composite pyrolysis was put forward through characterization of sample properties. Results show that, under the optimal reaction conditions of the composite pyrolysis, the yield of fuel oil was increased by 34.8% and the yield of aromatics was increased by 50.7% compared with the conventional pyrolysis from MM sample. Advantages of the composite pyrolysis could be explained by the enhanced contact between biomass and plastic particles, which promoted a stronger synergy between the two derived intermediates and effectively improved mass and heat transfer during pyrolysis process.
机译：生物质和塑料的催化共热是其资源回收和能量转换的有希望的技术。对于传统技术，两种原料是机械混合（mm）到共转化反应。然而，MM模式过程中存在缺点，例如混合不均匀性和原料的不方便的运输，在热解和低产品中的热解和低产品中的热量和传质。为了解决上述问题，在使用HzSM-5作为催化剂的实验室规模的固定床反应器中，在本文中，在本文中进行了一种生物质和塑料的复合热解。通过包括机械混合，热压和破碎造粒的程序，制备复合成型（CM）样品。然后探讨了CM样品的燃料油生产的最佳条件，并将产物分布与来自普通MM样品的热解相比。通过样品特性的表征提出了复合热解的高质量燃料油产生的可能机制。结果表明，在复合热解的最佳反应条件下，与MM样品的常规热解相比，燃料油产率升高了34.8％，芳烃的产率增加了50.7％。复合热解的优点可以通过生物质和塑料颗粒之间的增强接触来解释，这在两种衍生的中间体之间促进了更强的协同作用，并有效地改善了热解过程中的质量和热传递。

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