Development of CaO supported on modified geopolymer catalyst for transesterification of soybean oil to biodiesel

被引：25

作者：

Supamathanon, Natkanin ^{[1
]}

Boonserm, Kornkanok ^{[1
]}

Lisnund, Sireerat ^{[1
]}

Chanlek, Narong ^{[2
]}

Rungtaweevoranit, Bunyarat ^{[3
]}

Khemthong, Pongtanawat ^{[3
]}

Wittayakun, Jatuporn ^{[4
]}

Osakoo, Nattawut ^{[4
,5
]}

机构：

[1] Rajamangala Univ Technol Isan, Fac Sci & Liberal Arts, Dept Appl Chem, Nakhon Ratchasima 30000, Thailand

[2] Synchrotron Light Res Inst, Nakhon Ratchasima 30000, Thailand

[3] Natl Sci & Technol Dev Agcy NSTDA, Natl Nanotechnol Ctr NANOTEC, Pathum Thani 12120, Thailand

[4] Suranaree Univ Technol, Inst Sci, Sch Chem, Nakhon Ratchasima 30000, Thailand

[5] Suranaree Univ Technol, Inst Res & Dev, Nakhon Ratchasima 30000, Thailand

来源：

MATERIALS TODAY COMMUNICATIONS | 2021年 / 29卷

关键词：

Transesterification; Geopolymer; Heterogeneous catalysis; Biodiesel; CaO; PHOTOCATALYTIC DEGRADATION; FLY-ASH; ZEOLITE; ADSORPTION; NAX;

D O I：

10.1016/j.mtcomm.2021.102822

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Heterogeneous base catalysts, CaO supported on modified geopolymer (Geo), were developed and characterized as low-cost catalyst for biodiesel production from the transesterification of soybean oil. Geo was modified and synthesized by facile method, meta-kaolin and fumed silica were employed as sources of silica, alumina and, foaming agent (Al metal). The modified Geo was then compared to the conventional Geo without foaming agent (unfoamed-Geo). The catalysts, CaO with various loadings supported on Geo, were prepared by applying microwave radiation and subsequent calcination in air at 600 degrees C. The addition of Al metal during the synthesis of a geopolymer resulted in larger pore size. The results from CO2-TPD and XPS suggested that the calcium species dispersed with strong interactions in the aluminosilicate network of the geopolymer structure leading to strong basicity of the catalysts. The reactivity results showed that the fatty acid methyl ester (FAME) yield of 30%CaO/Geo was 93.12 +/- 0.48%, larger amount than that of 30%CaO/unfoamed-Geo (70.87 +/- 0.22%). Moreover, 30% CaO/Geo could be reused for at least 3 runs, suggesting a promising catalyst for cost-effective biodiesel production.

引用

页数：10

共 33 条

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