中文摘要：

文章以油茶壳为原料,采用水热炭化技术制备水热生物炭,并分析了水热炭化温度、保留时间、固体物含量对水热生物炭的高位热值和能量产率的影响。以此为基础,采用正交试验优化了上述3个工艺条件对油茶壳水热生物炭的影响。研究结果表明：水热炭化温度为200℃,保留时间为30 min,反应体系中固体物含量为10%时,油茶壳水热生物炭的综合评分最好;此时油茶壳水热生物炭的高位热值为22.28 MJ/kg,能量产率为75.07%。燃烧热重分析表明,油茶壳水热生物炭的燃烧过程向高温区转移。研究结果可用于指导生产高热值、高能量产率的油茶壳水热生物炭,可为油茶壳的利用提供参考。

英文摘要：

In this paper, hydrothermal carbonization （HTC） temperature, residence time, and solid ratio for HTC of waste Camellia oleifera shells were analyzed by the higher heating value, and energy yield in order to design and optimize the HTC process of waste Camellia oleifera shells. Based on these, three processing conditions of HTC were optimized by the orthogonal experiment. The results showed that the optimal process conditions were 200 ℃ of HTC temperature, 30 min of residence time, and 10%of solid ratio. Under these conditions, the higher heating value and energy yield were 22.28 MJ/kg and 75.07%, respectively. Thermogravimetric analysis of combustion experiments showed that the combustion process of Came llia ole ife ra shells hydrochar moved to the high temperature zone compared to raw simples. The results could be used to guide the production of Camellia oleifera shells hydrochar for the higher calorific value, higher energy yield and provide references for utilizations of Camellia oleifera shells.