不同粒径棕榈壳的热失重过程及产物特性分析  

DECOMPOSITION AND PRODUCT PROPERTY ANALYSIS OF PALM KERNEL SHELL WITH DIFFERENT PARTICLE SIZES

作　　者：常国璋[1,2] 谢建军 黄艳琴[1] 刘华财[1] 阴秀丽[1] 吴创之[1] Chang Guozhang;Xie Jianjun;Huang Yanqin;Liu Huacai;Yin Xiuli;Wu Chuangzhi(CAS Key Laboratory of Renewable Energy,Guangdong Key Laboratory of New and Renewable Energy Research and Development,Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640,China;University of Chinese Academy of Sciences,Beifing 100049,China)

机构地区：[1]中国科学院广州能源研究所中科院可再生能源重点实验室,广州510640 [2]中国科学院大学,北京100049

出　　处：《太阳能学报》2018年第8期2110-2117,共8页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51176194;51306193)

摘　　要：采用小型固定床与热重分析仪、气相色谱-质谱仪和比表面积分析仪等,考察不同粒径下棕榈壳的热失重过程与产物特性。结果表明：随着粒径的增大（0.950.0 mm）,棕榈壳热解主失重阶段的失重量明显降低,第1个失重速率峰的温度前移29℃,同时峰值增加22.18%/min。600850℃下,棕榈壳热解气体的产率随粒径的增大而增加,但粉状组（≤0.9 mm）的低位热值最高。改变粒径对热解焦油（主要为苯酚和乙酸）的种类影响较小。半焦产率随粒径的增大而增加,但其CO2气化反应性明显下降。The thermal weight loss process and product characteristics of palm kernel shell（PKS）with different particle sizes are investigated by using thermogravimetric analyzer,small fixed-bed reactor,gas chromatography-mass spectrometer（GC/MS）,specific surface area analyzer and BET analysis.The results show that with the increase of particle size,the weight loss during the main weight loss phase of PKS pyrolysis is significantly reduced,and the temperature corresponding to the first weight loss peak rate peak advances 29 ℃,while the peak value increases by 22.18%/min.Under 600-850 ℃,the pyrolysis gas yield of PKS increases with the increase of particle size,but the low heat value of the powder group is the highest.Changing the particle size has little effect on the type of pyrolysis tar （mainly phenol and acetic acid）.The semi-coke yield increases with increasing particle size,but its CO2 gasification reactivity decreases significantly.

关 键 词：粒径 气化 热解 棕榈壳 

分 类 号：TK6[动力工程及工程热物理—生物能]