固体酸催化麻疯树油酯交换制备生物柴油

›› 2008, Vol. 8 ›› Issue (6): 1167-1172.

固体酸催化麻疯树油酯交换制备生物柴油

孙晋峰任天瑞薛思佳

上海师范大学生命与环境科学学院上海师范大学生命与环境科学学院上海师范大学生命与环境科学学院

收稿日期:2008-05-26 修回日期:2008-07-31 出版日期:2008-12-20 发布日期:2008-12-20
通讯作者: 任天瑞

Preparation of Bio-diesel from Jatropha curcas Oil by Transesterification with Solid Acid Catalysts

SUN Jin-feng REN Tian-rui XUE Si-jia

College of Life and Environment Sciences, Shanghai Normal University College of Life and Environment Sciences, Shanghai Normal University College of Life and Environment Sciences, Shanghai Normal University

Received:2008-05-26 Revised:2008-07-31 Online:2008-12-20 Published:2008-12-20
Contact: REN Tian-rui

摘要/Abstract

摘要： 采用固体酸催化酯交换方法，研究了由麻疯树油制备脂肪酸甲酯(生物柴油)过程中催化剂类型及工艺条件对生物柴油产率和产品组成的影响. 采用沉淀法制得两种固体酸催化剂ZrO2-SO42-和K4Zn4[Fe(CN)6]3，利用XRD, FT-IR, BET和元素分析仪表征了固体酸结构和性质. 以麻疯树油为原料油，分别比较了原料油的酸值及反应温度对2种催化剂的影响，利用气相色谱-质谱联用分析仪分析了产物的组成. 结果表明，ZrO2-SO42-和K4Zn4[Fe(CN)6]3催化高酸值麻疯树油时，ZrO2-SO42-容易失活，甲酯收率降为84%；以Fe-Zn为催化剂，甲酯收率达到93%，使用5次后甲酯收率仍达90%.

关键词: 生物柴油, 固体酸, 麻疯树油, 酯交换

Abstract: Transesterification of Jatropha curcas oil was carried out in the presence of solid acid, the effects of types of catalysts and reaction conditions on the bio-diesel yields and the components in the process of the preparation of methyl esters (bio-diesel) were examined. Solid acid catalysts ZrO2-SO42- and K4Zn4[Fe(CN)6]3 were prepared with precipitation. Their structures and characteristics identified by XRD, FT-IR, BET and elemental analysis were compared. Their catalytic activities changed with acid value and reaction temperature. The detail components of the bio-diesel production were analyzed by GC-MS. The results showed that the ZrO2-SO42- lost its catalytic activity in high acid value Jatropha curcas oil. The yield of methyl ester declined to 84%. Otherwise, K4Zn4[Fe(CN)6]3 remained its good catalytic activity and stability. The yield of methyl ester was 93%. After it was used five times, the yield of methyl ester still reached 90%.

Key words: bio-diesel, solid acid, Jatropha curcas oil, transesterification

中图分类号:

TQ645.8

孙晋峰任天瑞薛思佳. 固体酸催化麻疯树油酯交换制备生物柴油[J]. , 2008, 8(6): 1167-1172.

SUN Jin-feng REN Tian-rui XUE Si-jia. Preparation of Bio-diesel from Jatropha curcas Oil by Transesterification with Solid Acid Catalysts[J]. , 2008, 8(6): 1167-1172.

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