Na2SiO3/ZrO2固体碱催化大豆油制备生物柴油的研究  

Study on Na2SiO3/ZrO2 solid base-catalyzed transesterification of soybean oil to biodiesel

作　　者：黄振旭 陈凌霞 任丽 李颖欣 贾潘潘 张文慧 Huang Zhenxu;Chen Lingxia;Ren Li;Li Yingxin;Jia Panpan;Zhang Wenhui(College of Chemistry and Chemical Engineering,Zhengzhou Normal University,Zhengzhou 450044,China)

机构地区：[1]郑州师范学院化学化工学院,河南郑州450044

出　　处：《无机盐工业》2020年第6期83-86,共4页Inorganic Chemicals Industry

基　　金：河南省高等学校重点科研项目(19B150021);郑州地方高校市级大学生创新训练计划项目(ZDC2019002);郑州师范学院教学改革研究项目(2018-ZSJGYB-038)。

摘　　要：采用浸渍法制备了固体碱催化剂硅酸钠/二氧化锆(Na2SiO3/ZrO2),并用其催化大豆油制备生物柴油。考察了催化剂焙烧温度、催化剂焙烧时间、硅与锆物质的量比、醇油物质的量比和催化剂用量等因素对生物柴油产率的影响。X射线衍射(XRD)表征结果显示,引入硅酸钠可调变催化剂中二氧化锆的晶相组成。对催化剂的性能测试表明,当催化剂焙烧温度为600℃、催化剂焙烧时间为3 h、硅与锆物质的量比为4、醇油物质的量比为7、催化剂用量(催化剂占大豆油的质量)为3%时,生物柴油的产率最高为92.5%。Na2SiO3/ZrO2 solid base catalysts were prepared by immersion method and used to catalyze soybean oil to produce biodiesel.The effects of the different calcination temperature,calcination time,amount-of-substance ratio of silicon to zirconium,amount-of-substance ratio of alcohol to soybean oil and mass ratio of catalyst to oil on the transesterification reaction were investigated.XRD characterization results showed that the crystalline structure of ZrO2 of the catalysts with addition of Na2SiO3 were improved.The determination results of catalysts indicated that when the calcination temperature was 600 ℃,calcination time was 3 h,amount-of-substance ratio of silicon to zirconium was 4,amount-of-substance ratio of alcohol to soybean oil was 7 and the catalyst dosage was 3% of soybean oil quality,then the highest yield of biodiesel reached 92.5%.

关 键 词：生物柴油 酯交换反应 硅酸钠/二氧化锆 固体碱 

分 类 号：TQ645.8[化学工程—精细化工]