CAJ | 학술논문

为了研究农作物秸秆在微波辐照下的热解特性,采用定制的微波加热装置,进行了整包秸秆的微波热解试验,并对秸秆微波热解的产物和能耗进行了考察.结果表明,微波加热过程中料包内部温度分布均匀,升温迅速.微波输入功率是影响加热过程的关键因素, 同时料包内部的传热传质对温度分布也有重要影响.微波加热会引发秸秆的热解反应,气体产物主要由氢气、一氧化碳、甲烷和二氧化碳等组成,通过氮吸附方法和扫描电镜分析,得到了固体产物的比表面积、孔容和孔径.微波热解电耗较大,应该合理选择微波功率和物料处理量,以提高经济性.该文结果可为农作物秸秆的资源化利用提供基础性资料.
위료연구농작물갈간재미파복조하적열해특성,채용정제적미파가열장치,진행료정포갈간적미파열해시험,병대갈간미파열해적산물화능모진행료고찰.결과표명,미파가열과정중료포내부온도분포균균,승온신속.미파수입공솔시영향가열과정적관건인소, 동시료포내부적전열전질대온도분포야유중요영향.미파가열회인발갈간적열해반응,기체산물주요유경기、일양화탄、갑완화이양화탄등조성,통과담흡부방법화소묘전경분석,득도료고체산물적비표면적、공용화공경.미파열해전모교대,응해합리선택미파공솔화물료처리량,이제고경제성.해문결과가위농작물갈간적자원화이용제공기출성자료.
The characteristics of microwave pyrolysis of straw bale were studied using a microwave furnace and the composition of pyrolytic products and energy consumption analysis were also carried out. The results state that temperature distribution inside the bale is uniform and temperature rises quickly after microwave heating. Microwave input power is a key factor for microwave heating process, but heat and mass transfer inside straw bale have important influences on temperature distribution. Pyrolysis can be initiated by microwave heating, and the gaseous products are mainly composed of hydrogen, carbon monoxide, methane, carbon dioxide, etc. Analysis of solid products was also carried out by scanning electron microscopy (SEM) and N_2 absorption method and the specific surface area, pore volume and pore diameter were obtained. Energy consumption of microwave pyrolysis is large, which can be improved by selecting suitable microwave power and the size of straw bale. Those results obtained from microwave pyrolysis provide foundational data for the new utilization of crop straw resources.