纳米Fe_(3)O_(4)-PO_(4)^(3-)/ZrO_(2)催化制备文冠果生物柴油  

Nano-Fe_(3)O_(4)-PO_(4)^(3-)/ZrO_(2) as catalyst for biodiesel production from xanthoceras sorbifolia bunge

作　　者：郝一男[1,2] 薛振华 王喜明[1,2] 颉鹏飞 HAO Yi-nan;XUE Zhen-hua;WANG Xi-ming;JIE Peng-fei(College of Materials Science and Art Design,Inner Mongolia Agricultural University,Hohhot 010018,China;Inner Mongolia Key Laboratory of Sandy Shrubs Fibrosis and Energy Development and Utilization,Hohhot 010018,China;Qiao East Biofuel Co.,Ltd.,Baotou 014000,China)

机构地区：[1]内蒙古农业大学材料科学与艺术设计学院,内蒙古呼和浩特010018 [2]内蒙古沙生灌木资源纤维化和能源化开发利用重点实验室,内蒙古呼和浩特010018 [3]俏东方生物燃料集团有限公司,内蒙古包头014000

出　　处：《应用化工》2021年第4期974-978,984,共6页Applied Chemical Industry

基　　金：内蒙古自治区科技成果转化专项项目(2019CG018);内蒙古自然基金项目(2018BS03004)。

摘　　要：采用共沉淀法制备纳米Fe_(3)O_(4)-PO_(4)^(3-)/ZrO_(2)固体酸催化剂,利用X-射线衍射(XRD)、N_(2)吸脱附、红外光谱(FTIR)和热重分析(TG)对催化剂的结构进行表征,探讨了纳米Fe_(3)O_(4)加入量、焙烧温度和时间对固体酸催化剂性能的影响。考察了纳米Fe_(3)O_(4)负载量、醇油摩尔比、反应温度和反应时间对制备文冠果生物柴油的影响。结果表明,当Zr(OH)4与纳米Fe_(3)O_(4)摩尔比为3∶1,焙烧温度为750℃,焙烧时间为3 h时,纳米Fe_(3)O_(4)-PO_(4)^(3-)/ZrO_(2)固体酸催化剂的催化性能最佳,生物柴油酯化率达85.4%。当催化剂的用量为油重的1%,醇油摩尔比为9∶1,反应温度为80℃和反应时间为4 h时,文冠果生物柴油的转化率可达到92.8%。Nano-Fe_(3)O_(4)-PO_(4)^(3-)/ZrO_(2) solid acid catalyst was prepared by coprecipitation method,the structures of the catalysts were characterized by X-ray diffraction(XRD),N_(2)adsorption-desorption,FT-infrared(FTIR)and thermogravimetric(TG),the influence of the amount of nano-Fe_(3)O_(4)and calcination on the properties of solid acid catalyst were discussed.The effects of various parameters such as mass fraction of nano-Fe_(3)O_(4)loading,molar ratio of methanol to oil,reaction temperature and time on the yield of biodiesel.The results showed a maximum biodiesel yield of 85.4%was obtained under the optimal conditions with the molar ratio of Zr(OH)4 to nano-Fe_(3)O_(4)3∶1,reaction time being 3 h and calcinated at 750℃.The solid acid catalyst amount of 1%,the molar ratio of methanol to oil 9∶1,reaction temperature at 80℃for 4 h exhibits a high catalytic activity for the transesterification,and the yield of biodiesel reaches 92.8%.

关 键 词：文冠果 生物柴油 纳米Fe_(3)O_(4)-PO_(4)^(3-)/ZrO_(2)固体酸催化剂 

分 类 号：TQ645.8[化学工程—精细化工]