中文摘要：

利用热重分析仪及管式炉反应器研究了餐厨垃圾的热解行为。餐厨垃圾的热解过程包括两个阶段,结合微分法与积分法对两阶段进行了动力学计算,确定管式炉热解实验反应温度。对热解产物进行了分析,结果表明,气体产物主要是CO和CH4;固体产物焦的恒容低位发热量为20.33 MJ kg 1;液体产物焦油主要是醇和烃,占焦油总量的70.55%。通过分析不同热解温度焦的红外谱图、元素组成及热解过程的小分子气体释放规律,探究了餐厨垃圾的热解机理。290℃时,餐厨垃圾中肽键断裂,释放出大量CO2和CO;350℃时,脂类化合物已经完全分解或挥发;500℃时,焦中甲基及亚甲基峰消失,释放出大量烃类;未分解的物质主要是淀粉。最后考察了升温速率对热解产物分布的影响,发现提高升温速率,焦收率基本不变,焦油收率下降,气体产物收率增加。

英文摘要：

TGA and an external heated tube furnace were used to investigate the characteristics of the pyrolysis of the kitchen waste （KW）. The process of pyrolysis consists of two stages, and their kinetic models and parameters were calculated by means of the combination of differential method and integral method. The products of pyrolysis at 500℃ with the heating rate of 19.75℃.min^-1 were analyzed. It was found that the gaseous product and char are promising fuels, in which the 59.18% of the gaseous product is CO and CH4, and the low heating value （LHV） of the char is 20.33 MJ.kg-1. 54 kinds of compounds were detected by GC-MS analysis of the tar, in which the alcohols and hydrocarbons are the main components, they make up 70.55% of the tar. FT-IRs and ultimate analyses of chars produced at different temperatures were conducted, and the releasing characteristics of permanent gases were studied to explore the mechanism of pyrolysis of KW. The releasing amount of CO2 and CO reaches a peak value as the peptide bonds break at 290℃. No ester was detected when the decomposition and volatilization of lipids take place at 350℃ Many alkanes are emitted due to the break and diminution of the CH alkyls at 500℃, and the remaining component undecompased in the char was identified to be starch. The contents of C, H, N and LHV of the char reach their maximum at 290℃, and then decrease with the increase of pyrolysis temperature. If the aim of pyrolysis is to achieve the high quality char, 290℃ will be the optimal pyrolysis temperature because when the pyrolysis is carried out at 290℃, both the yield and the LHV of the char are the highest. The effeet of heating rate on the distribution of product species （gas, tar and char） were examined, and the results indicate that the increase of heating rate decreases the yield of tar and increases the yield of gaseous product.