超临界甲醇中D-(-)-阿拉伯糖催化液化研究  

Catalytic liquefaction research on D-(-)-arabinose in supercritical methanol

作　　者：陈新怡[1,2] 包桂蓉[1,2] 李法社[1,2] 谭方关 李秀凤[2] 

机构地区：[1]昆明理工大学省部共建复杂有色金属资源清洁利用国家重点实验室,云南昆明650093 [2]昆明理工大学冶金与能源工程学院,云南昆明650093

出　　处：《云南大学学报（自然科学版）》2015年第3期429-436,共8页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金(51266003)

摘　　要：以Cu O-Zn O/Al2O3复合氧化物为催化剂,采用间歇式高温高压反应釜,超临界甲醇为液化介质,对半纤维素D-(-)-阿拉伯糖进行催化液化研究.考察了反应温度、反应时间、催化剂用量、甲醇填充率对D-(-)-阿拉伯糖转化率的影响.同时采用正交试验进行优化.结果表明:当反应温度320℃,反应时间30 min,催化剂用量100%、甲醇填充率40%,此工艺条件下D-(-)-阿拉伯糖转化率为99.98%.通过GC-MS分析了D-(-)-阿拉伯糖液化产物,检测分析表明,其液化产物成分复杂,主要有:酯类、醇类、酮类.The catalytic liquefaction of D-（-）-arabinose in supercritical methanol using CuO-ZnO / Al2O3 composite oxides as catalysts in a pressurized batch reactor was studied. The effects of liquefaction temperature,liquefaction time,content of catalyst and filling ratio of methanol on the D-（-）-arabinose conversion were investigated.The experimental results from orthogonal matrix showed that the optimum liquefaction conditions were 320℃,30 min,100% of catalyst,40% of methanol which resulted in an overall conversion of 99.98% for D-（-）-arabinose.The liquefaction product was analyzed by GC-MS,which showed that the product was a complex mixture with esters,alcohols and ketones as the main ingredients.

关 键 词：D-(-)-阿拉伯糖 超临界甲醇 CuO-ZnO/Al2O3 催化液化 

分 类 号：TK6[动力工程及工程热物理—生物能]