小桐子油超声波协同纳米催化剂制备生物柴油  

Biodiesel preparation using Jatropha oil by ultrasonic and nanometer catalysts

作　　者：邓欣[1] 方真[1] 张帆[1,2] 龙运多[1] 于长流[3] 

机构地区：[1]中国科学院西双版纳热带植物园昆明分部生物能源组,昆明650223 [2]湘潭大学化工学院,湘潭411105 [3]天津大港油田集团石油化工公司煅烧焦厂,天津300280

出　　处：《农业工程学报》2010年第2期285-289,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家高技术研究发展计划资助项目(2003AA214061)

摘　　要：以纳米Zn-Mg-Al高温煅烧物为催化剂,高酸值小桐子油为原料,超声波反应器中连续生产生物柴油,并系统研究超声波辐射协同纳米催化剂催化制备生物柴油的最优条件。研究结果表明,超声波协同纳米催化剂催化制备生物柴油的最优条件为:超声波功率210W、醇油摩尔比4︰1、催化剂为油质量的1.2%、反应温度60℃时生物柴油收率94.3%。在此优化条件下完全可实现小桐子油连续工业化生产生物柴油的需求,精制后的生物柴油完全符合德国生物柴油标准DINV51606:1997,且理化性质稳定,放置1a后生物柴油的酸值、密度、黏度和化学组成基本不变。Biodiesel was prepared continuously in an ultrasonic tubular reactor with calcined Zn-Mg-Al hydrotalcite as catalyst and Jatropha oil as raw material with high acid value.Assisted with ultrasonic radialization,the optimized conditions for biodiesel production catalyzed by calcined Zn-Mg-Al hydrotalcite were obtained.Experimental results showed that at the optimized conditions,i.e.,ultrasonic power 210 W,methanol to Jatropha oil molar ratio 4：1,catalyst concentration 1.2%and reaction temperature 60℃,the yield of biodiesel was 94.3%.On the optimized conditions, biodiesel could be continuously produced with Jatropha oil as raw material,the specification of biodiesel after purification completely met German biodiesel standard DIN V 51606：1997 and the physicochemical properties were stable.The acid value,density,viscosity and chemical compositions of biodiesel stored for 1 year were invariable.

关 键 词：催化剂 生物柴油 超声波 辐射 酯交换 

分 类 号：TQ645.1[化学工程—精细化工]