IN SITU TRANSESTERIFICATION OF MICROALGAE WITH HIGH FREE FATTY ACID USING SOLID ACID AND ALKALI CATALYST

被引：0
|
作者：
Ma, Guixia [1 ,2 ]
Hu, Wenrong [1 ,3 ]
Pei, Haiyan [1 ,3 ]
Song, Mingming [1 ]
Qi, Feng [2 ]
机构：
[1] Shandong Univ, Sch Environm Sci & Engn, Jinan 250100, Peoples R China
[2] Shandong Jianzhu Univ, Sch Municipal & Environm Engn, Jinan 250101, Peoples R China
[3] Shandong Prov Engn Ctr Environm Sci & Technol, Jinan 250061, Peoples R China
来源：
FRESENIUS ENVIRONMENTAL BULLETIN | 2015年 / 24卷 / 01期
关键词：
Microalgae; Transesterification; Solid acid; Fatty acid methyl esters; BIODIESEL PRODUCTION; WET MICROALGAE; OIL; EXTRACTION;
D O I：
暂无
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In situ transesterification of microalgae Chlorella vulgaris with high free fatty acid (FFA) using solid acid and alkali catalyst (two-step transesterification) has been evaluated. The highest fatty acid methyl esters (FAME) yield of 35.50 +/- 1.27 mg/g biomass was provided at the optimal conditions as follows: in the first step, 10 wt. % of solid acid (Amberlyst BD20) and reaction time of 50 min; in the second step, 4 wt. % of KOH for 40 min. The FAME yield obtained by two - step pre-esterification and transterification was three times more than that achieved by one-step alkali-catalyzed conversion, and the products were more suitable for biodiesel standards.
引用
收藏
页码：90 / 95
页数：6
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