Column Chromatography Purification and Analysis of Biodiesel by Transesterification

被引：2
作者：
Liu Yang [1 ,2 ]
Yi Huai-feng [3 ]
Chen Yu [1 ]
Wu Yu-long [1 ]
Yang Ming-de [1 ]
Chen Zeng [1 ]
Tong Jun-mao [2 ]
机构：
[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China
[2] Shihezi Univ, Food Coll, Shihezi 832003, Peoples R China
[3] Petrochina, Xinjiang Oilfield Co, Karamay 834000, Peoples R China
来源：
SPECTROSCOPY AND SPECTRAL ANALYSIS | 2012年 / 32卷 / 02期
关键词：
Biodiesel; Purification; Column chromatography; Sorbifolia oil; H-1; NMR; SEPARATION; BASE; OIL;
D O I：
10.3964/j.issn.1000-0593(2012)02-0505-05
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
In the present paper, crude biodiesel prepared with sorbifolia oil as raw material by transesterification was purified by column chromatography, then the composition of biodiesel was analyzed by gas chromatography, FTIR, GC-MS and H-1 NMR Column chromatography can separate the crude biodiesel into two fractions; petroleum ether eluted fraction (A1) and methanol eluted fraction (A2). Petroleum ether eluted fraction was mainly biodiesel fraction, which was produced from sorbifolia oil by transesterification, including methyl linoleate, methyl cis-9-octadecenoate and so on; methanol eluted fraction was mainly glycerol fraction, which came from the side reaction of transesterification. The results show that the purity of refined biodiesel increased from 77. 51% to 93. 87%, and the product recovery rate reached up to 91. 04% after the purification by column chromatography. The results obtained by FTIR and H-1 NMR further showed that the column chromatography can effectively improve the purity of biodiesel. This paper provides a basis for industrialization of purification of biodiesel.
引用
收藏
页码：505 / 509
页数：5
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