亚/超临界乙醇-水体系中磺化碳固体酸催化液化玉米秸秆  

Catalytic Liquefaction of Corn Stalk in Sub/Supercritical Ethanol-Water under Sulfonated Carbon-based Solid Acid

作　　者：武海棠[1] 郑冀鲁[1] 

机构地区：[1]西北农林科技大学林学院,陕西杨凌712100

出　　处：《广东化工》2017年第10期7-8,共2页Guangdong Chemical Industry

基　　金：西北农林科技大学林学院优秀青年教师人才培育计划项目(无编号);陕西省自然科学基础研究计划项目(2015JQ3067);中央高校基本科研业务费资助项目(2452015337)

摘　　要：以微晶纤维素为原料,通过炭化和磺化制备了一种磺化碳固体酸催化剂,利用红外光谱和扫描电镜等方法对其进行了表征。研究了该催化剂在亚/超临界乙醇-水溶剂中针对玉米秸秆的催化液化性能,考察了反应温度、催化剂用量、乙醇/水体积比等因素对生物油得率的影响。结果表明:在反应温度320℃、催化剂用量为原料质量分数的6%、乙醇/水体积比为1/1、反应时间3 h条件下,生物油得率可达52%。A kind of sulfonated carbon-based solid acid catalyst was prepared by carbonization and sulfonation using microcrystalline cellulose as raw material and the catalyst was characterized by IR and SEM. The activity of the catalyst was evaluated by the liquefaction of corn stalk in sub/supercritical ethanol-water. Effects of reaction temperature, catalyst amount and ethanol/water volume ratio on the yield of bio-oil were investigated. The experimental results indicated that a bio-oil yield of 52 % was obtained under the reaction temperature of 320 ℃, catalyst amount of 6 wt%, ethanol/water volume ratio of 1/1 and 3 h of reaction time.

关 键 词：磺化碳固体酸 催化液化 生物油 玉米秸秆 

分 类 号：TK6[动力工程及工程热物理—生物能]