Application of kaolin-based catalysts in biodiesel production via transesterification of vegetable oils in excess methanol

Tan Hiep Dang, Bing Hung Chen, Duu Jong Lee

研究成果: Article

40 引文 (Scopus)

摘要

Biodiesel production from transesterification of vegetable oils in excess methanol was performed by using as-prepared catalyst from low-cost kaolin clay. This effective heterogeneous catalyst was successfully prepared from natural kaolin firstly by dehydroxylation at 800. °C for 10. h and, subsequently, by NaOH-activation hydrothermally at 90. °C for 24. h and calcined again at 500. °C for 6. h. The as-obtained catalytic material was characterized with instruments, including FT-IR, XRD, SEM, and porosimeter (BET/BJH analysis). The as-prepared catalyst was advantageous not only for its easy preparation, but also for its cost-efficiency and superior catalysis in transesterification of vegetable oils in excess methanol to produce fatty acid methyl esters (FAMEs). Conversion efficiencies of soybean and palm oils to biodiesel over the as-prepared catalysts reached 97.0. ±. 3.0% and 95.4. ±. 3.7%, respectively, under optimal conditions. Activation energies of transesterification reactions of soybean and palm oils in excess methanol using these catalysts are 14.09. kJ/mol and 48.87. kJ/mol, respectively.

原文English
頁(從 - 到)175-181
頁數7
期刊Bioresource technology
145
DOIs
出版狀態Published - 2013 十月

指紋

Kaolin
Plant Oils
Biofuels
vegetable oil
Vegetable oils
Transesterification
kaolin
Biodiesel
Methanol
methanol
catalyst
Catalysts
Soybean oil
Soybean Oil
Palm oil
soybean
Porosimeters
dehydroxylation
oil
catalysis

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

引用此文

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abstract = "Biodiesel production from transesterification of vegetable oils in excess methanol was performed by using as-prepared catalyst from low-cost kaolin clay. This effective heterogeneous catalyst was successfully prepared from natural kaolin firstly by dehydroxylation at 800. °C for 10. h and, subsequently, by NaOH-activation hydrothermally at 90. °C for 24. h and calcined again at 500. °C for 6. h. The as-obtained catalytic material was characterized with instruments, including FT-IR, XRD, SEM, and porosimeter (BET/BJH analysis). The as-prepared catalyst was advantageous not only for its easy preparation, but also for its cost-efficiency and superior catalysis in transesterification of vegetable oils in excess methanol to produce fatty acid methyl esters (FAMEs). Conversion efficiencies of soybean and palm oils to biodiesel over the as-prepared catalysts reached 97.0. ±. 3.0{\%} and 95.4. ±. 3.7{\%}, respectively, under optimal conditions. Activation energies of transesterification reactions of soybean and palm oils in excess methanol using these catalysts are 14.09. kJ/mol and 48.87. kJ/mol, respectively.",
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AB - Biodiesel production from transesterification of vegetable oils in excess methanol was performed by using as-prepared catalyst from low-cost kaolin clay. This effective heterogeneous catalyst was successfully prepared from natural kaolin firstly by dehydroxylation at 800. °C for 10. h and, subsequently, by NaOH-activation hydrothermally at 90. °C for 24. h and calcined again at 500. °C for 6. h. The as-obtained catalytic material was characterized with instruments, including FT-IR, XRD, SEM, and porosimeter (BET/BJH analysis). The as-prepared catalyst was advantageous not only for its easy preparation, but also for its cost-efficiency and superior catalysis in transesterification of vegetable oils in excess methanol to produce fatty acid methyl esters (FAMEs). Conversion efficiencies of soybean and palm oils to biodiesel over the as-prepared catalysts reached 97.0. ±. 3.0% and 95.4. ±. 3.7%, respectively, under optimal conditions. Activation energies of transesterification reactions of soybean and palm oils in excess methanol using these catalysts are 14.09. kJ/mol and 48.87. kJ/mol, respectively.

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