Biodiesel production from transesterification of palm oil with methanol over CaO supported on bimodal meso-macroporous silica catalyst

被引：95
作者：
Witoon, Thongthai [1 ,2 ,3 ]
Bumrungsalee, Sittisut [1 ]
Vathavanichkul, Peerawut [1 ]
Palitsakun, Supaphorn [1 ]
Saisriyoot, Maythee [1 ]
Faungnawakij, Kajornsak [4 ]
机构：
[1] Kasetsart Univ, Fac Engn, Dept Chem Engn, Bangkok 10900, Thailand
[2] Kasetsart Univ, Ctr Adv Studies Nanotechnol & Its Applicat Chem F, Bangkok 10900, Thailand
[3] Kasetsart Univ, NANOTEC KU Ctr Excellence Nanoscale Mat Design Gr, Bangkok 10900, Thailand
[4] Natl Sci & Technol Dev Agcy, Natl Nanotechnol Ctr NANOTEC, Nanomat Energy & Catalysis Lab, Klongluang 12120, Pathumthani, Thailand
来源：
BIORESOURCE TECHNOLOGY | 2014年 / 156卷
关键词：
Biodiesel; Calcium oxide; Pellet size; Heterogeneous catalyst; Bimodal porous silica; POROUS SILICA; PARTICLE-SIZE; CALCIUM-OXIDE; SOYBEAN OIL; DESIGN; ASH;
D O I：
10.1016/j.biortech.2014.01.076
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Calcium oxide-loaded porous materials have shown promise as catalysts in transesterification. However, the slow diffusion of bulky triglycerides through the pores limited the activity of calcium oxide (CaO). In this work, bimodal meso-macroporous silica was used as a support to enhance the accessibility of the CaO dispersed inside the pores. Unimodal porous silica having the identical mesopore diameter was employed for the purpose of comparison. Effects of CaO content and catalyst pellet size on the yield of fatty acid methyl esters (FAME) were investigated. The basic strength was found to increase with increasing the CaO content. The CaO-loaded bimodal porous silica catalyst with the pellet size of 325 mu m achieved a high %FAME of 94.15 in the first cycle, and retained an excellent % FAME of 88.87 after five consecutive cycles. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：329 / 334
页数：6
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