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Advances in the transesterification of triglycerides to biodiesel using MgO–NaOH, MgO–KOH and MgO–CeO2 as solid basic catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
54801 47027 2013 8 PDF Available
Title
Advances in the transesterification of triglycerides to biodiesel using MgO–NaOH, MgO–KOH and MgO–CeO2 as solid basic catalysts
Abstract

MgO–KOH, MgO–NaOH and MgO–CeO2 solid basic catalysts were prepared by the impregnation method. The catalysts were characterized by SEM, XRD, Raman and FTIR spectroscopies and evaluated for the trans-esterification of triglycerides in biodiesel. SEM analysis of the samples showed the formation of MgO nanoneedles. On the other hand, XRD patterns and Raman spectra confirm the presence of well crystallized structures. The identification of OH bonds by FTIR, lead us to propose the formation of strong basic sites. By means of FTIR-CO2 analysis it was found that the basic strength of the samples follows the order: MgO–KOH > MgO–NaOH > MgO–CeO2. The transesterification reaction was carried out at 60 °C using cooking oil and methanol in an oil:methanol proportion of 4:1. The results showed that the yield to biodiesel after 1 h of reaction was 44, 56, 78, and 100% for MgO and MgO–CeO2, MgO–NaOH and MgO–KOH, respectively. The results suggest the opening of new promising applications for these solids as strong basic catalysts.

Graphical abstractVery high active solid basic catalysts for the transesterification of triglycerides (cooking oil) were obtained by impregnating MgO with KOH, NaOH and cerium nitrate.Figure optionsDownload full-size imageDownload high-quality image (224 K)Download as PowerPoint slideHighlights► The trans-esterification of cooking oil by biodiesel productions. ► The results showed yield to biodiesel after 1 h of reaction of 78 and 100% for MgO impregnated with NaOH and KOH. ► The MgO–NaOH, MgO–KOH showed the formation of strong of basic sites. ► SEM spectroscopy showed the formation of nanoneedles.

Keywords
Biodiesel; Transesterification of cooking oil; Strong basic catalysts; MgO–KOH > MgO–NaOH > MgO–CeO2 basic solids
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Advances in the transesterification of triglycerides to biodiesel using MgO–NaOH, MgO–KOH and MgO–CeO2 as solid basic catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 212, 1 September 2013, Pages 23–30
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us