改性凹凸棒脱色剂对餐饮废油制生物柴油的脱色性能  

Decolorization effect of modified attapulgite on biodiesel from waste cooking oil

作　　者：刘芳[1] 赵国虎[1] 郑艳萍[1] 卢勇 尚琼[1] LIU Fang;ZHAO Guo-hu;ZHENG Yan-ping;LU Yong;SHANG Qiong(College of Chemistry and Environmental Engineering,Lanzhou City University,Lanzhou 730070,China;Chemical Research Institute of Lanzhou Petrochemical Company,Lanzhou 730060,China)

机构地区：[1]兰州城市学院化学与环境工程学院,甘肃兰州730070 [2]兰州石化公司研究院,甘肃兰州730060

出　　处：《甘肃农业大学学报》2018年第3期187-192,共6页Journal of Gansu Agricultural University

基　　金：兰州市科技局项目(2012-2-99);甘肃省城市发展研究院项目(2013-GSCFY-KJ02)

摘　　要：【目的】探讨改性凹凸棒对餐饮废油生物柴油的脱色性能.【方法】以餐饮废油为原料,采用酯交换法制备生物柴油;以酸改凹凸棒为载体,Mn(NO3)2为活性前驱体,通过浸渍-焙烧法制备脱色剂,并将其用于餐饮废油生物柴油的脱色试验.【结果】脱色剂的最佳制备条件:焙烧温度450℃,负载时间3h,焙烧时间4h,Mn(NO3)2加入量10%;生物柴油与脱色剂质量比为10∶2时,生物柴油的脱色率为90.56%.【结论】脱色后生物柴油的多项性能有所提高.【Objective】To study the effect of modified attapulgite on the decoloration performance of biodiesel from waste cooking oil.【Method】The ester exchange method was used to prepare biodiesel with waste cooking oil.By using acid-treating attapulgite as carrier,Mn（NO3）2 as active precursor,the decolorizer was prepared by dipping roasting method.【Result】The best preparation conditions of decolorizer are：450 ℃ calcination temperature,3 hours load time,4 hours roasting time and 10% Mn（NO3）2.When mass ratio of biodiesel to decolourizer is 10∶2,the decolorization rate of biodiesel is 90.56%.【Conclusion】The major properties of biodiesel are improved after decolorization.

关 键 词：生物柴油 凹凸棒 改性 硝酸锰 脱色 

分 类 号：TQ424[化学工程]