源头改性对玉米秸秆水热液化制备生物油的影响  

EFFECTS OF MODIFIED TREATMENT ON THE BIOFUELS FROM HYDROTHERMAL LIQUEFACTION OF CORN STALKS

作　　者：李润东[1] 谢迎辉[1] 杨天华[1] 揭业斐 李秉硕 开兴平[1] 

机构地区：[1]沈阳航空航天大学能源与环境学院,辽宁省清洁能源重点实验室,沈阳110136

出　　处：《太阳能学报》2016年第11期2741-2746,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(51576135);辽宁省自然科学基金联合基金(2013024019)

摘　　要：采用稀酸改性和发酵改性对新鲜玉米秸秆进行处理,并利用间歇式高温高压反应釜进行水热液化制备生物油。分析稀酸改性处理和发酵改性处理对玉米秸秆微观形貌和官能团及生物油液化产率和化学成分的影响。结果表明:稀酸改性处理和发酵改性处理均能破坏玉米秸秆木质纤维素的结构,但对官能团的种类影响较小。改性处理有利于生物油产率和生物质转化率的提高,其中发酵改性处理的效果更显著,生物油产率和生物质转化率分别提高到39.95%和86.61%,生物油化学成分相对含量大于4%的化合物有6种,相对含量总和高达54.84%。The fresh corn stalks were pretreated by acid modified treatment and fermentation modified treatment and then directly liquefied in a batch autoclave with high temperature and high pressure. The change of the micro-fabric features and functional groups were analyzed. The yield and compounds of biofuels were examined. The results showed the structure of lignocellulose in corn stalks was be destroyed by the acid treatment and fermentation treatment, but functional groups were changed little. All the modified treatments could enhance the biofuels yield and conversion yield, while the fermentation treatment was best for them. With the fermentation treatment, the biofuels yield and conversion yield were increased to 39.95% and 86.61%, respectively. The content of six compounds with their relative content 〉4% was 54.84% in total.

关 键 词：玉米秸秆 改性处理 水热液化 生物油 

分 类 号：TK6[动力工程及工程热物理—生物能]