Abstract Biomass-based feedstock is an attractive alternative to fossil fuel due to its sustainability and potential as a clean energy source. The present work focuses on the valorisation of horse manure biowaste to produce bioenergy via microwave-assisted pyrolysis technique. The thermal decomposition process is conducted by considering the effects of pyrolysis temperature, catalyst loading and carrier gas flow rate on the yield and quality of end products. The pyrolysed gaseous product contains up to 73.1 vol% of syngas components. The solid biochar obtained contains a heating value of 35.5 MJ/kg with high surface to pore volume ratio. The relatively high specific energy contents of gaseous products and biochar indicate their potential as biofuels. The liquid product is found to contain oxygenated phenolic compound of up to 79.4 wt%. In spite of an overall energy deficit achieved when comparing the total energy of end products with the feedstock, the energy balance analysis indicates the optimum production parameters. The least energy deficit is achieved at the reactive conditions of 350–450 °C and manure-to-catalyst ratio of 1:1. A reaction mechanism pathway for the pyrolysis of horse manure is presented to show the production route for bioenergy and valuable chemicals.

中文翻译：

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用于马粪生物废物增值的微波热解

摘要 基于生物质的原料因其可持续性和作为清洁能源的潜力而成为化石燃料的有吸引力的替代品。目前的工作重点是通过微波辅助热解技术使马粪生物废物增值以生产生物能源。热分解过程是通过考虑热解温度、催化剂负载和载气流速对最终产品产率和质量的影响来进行的。热解气态产品含有高达 73.1 vol% 的合成气成分。获得的固体生物炭的热值为 35.5 MJ/kg，具有高表面积与孔体积比。气体产品和生物炭相对较高的比能含量表明它们具有作为生物燃料的潜力。发现液体产品含有高达 79.4 重量％的氧化酚类化合物。尽管在比较最终产品与原料的总能量时实现了总体能量不足，但能量平衡分析表明了最佳生产参数。在 350–450 °C 的反应条件和 1:1 的肥料与催化剂比例下实现的能量赤字最小。提出了马粪热解的反应机理途径，以展示生物能源和有价值化学品的生产路线。