炭基固体酸催化多花桐籽油酯化反应的研究  

Catalytic performance of carbon-based solid acid in the esterfication of Jatropha curcas var.Mutiflorm seed oil

作　　者：吴学华[1,2] 张帆[3] 方真[3] 杨成源[3] 包桂蓉[2] 王华[2] 

机构地区：[1]昆明理工大学理学院,云南昆明650500 [2]昆明理工大学冶金与能源工程学院,云南昆明650093 [3]中国科学院西双版纳热带植物园,云南昆明650223

出　　处：《云南大学学报（自然科学版）》2015年第1期111-116,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金(C161002);云南省自然科学基金(KKSY201252021)

摘　　要：通过先碳化、再磺化的简单工艺制备炭基固体酸,采用多种分析手段对其成分和结构进行表征.首次以高产量和高含油率的膏桐新品种—多花膏桐的籽油为油脂原料,考察炭基固体酸在其酯化试验中的催化效果.单因素试验结果表明,炭基固体酸可显著提高酯化反应效率;在反应温度100℃、反应时间60 min、醇油摩尔比12∶1和催化剂用量7%的反应条件下,多花桐籽油酯化率可达到90.02%,其酸值由17.13 mg/g降为1.71mg/g.炭基固体酸循环使用6次,多花桐籽油的酯化率无下降,表明其具有良好的催化活性、稳定性和工业应用前景.The carbon-based solid acid with 98% sulphuric acid.It was analysed by var. mutiflorm was a new source of Jatropha was prepared from bamboo powders by carbonization and sulfonated Elemental Analyzer, SEM, XRD, TG-DSC and TPD.Jatropha curcas curcas with high yield and high oil content, and used as raw material in this work.For the first time, the acid value of the Jatropha oil was reduced greatly in the esterification with the solid acid.The single factor experiments were used to optimize the variables.The results showed that the catalyst significantly improved the efficiency of esterification of Jatropha oil.The acid value of the Jatropha oil was re- duced from 17.13 to 1.71 mg/g, and the esterification rate was 90.02% under conditions of 100 ℃, 60 min, methanol/oil molar ratio 12/1 and 7% catalyst. The catalyst can be cycled 6 times with esterification rate still higher than 92% ,which proved it was high-active and stable,and had potential industrial applications.

关 键 词：桐籽油 炭基固体酸 酯化 催化反应 

分 类 号：TQ624[化学工程—精细化工]