Glycerolysis of palm oil using copper oxide nanoparticles combined with homogeneous base catalyst

In the present work, a new catalyst system composed of copper oxide nanoparticles (CuO-nano) along with a conventional homogeneous base catalyst (NaOH) for the glycerolysis of palm oil to produce monoglycerides (MG) was proposed. CuO-nano was synthesized in glycerol and directly used in the glycerol...

Full description

Saved in:
Bibliographic Details
Published in:New journal of chemistry 2016-01, Vol.4 (1), p.874-879
Main Authors: Ong, Huei Ruey, Khan, Md. Maksudur Rahman, Ramli, Ridzuan, Yunus, Rosli Mohd, Rahman, Md. Wasikur
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In the present work, a new catalyst system composed of copper oxide nanoparticles (CuO-nano) along with a conventional homogeneous base catalyst (NaOH) for the glycerolysis of palm oil to produce monoglycerides (MG) was proposed. CuO-nano was synthesized in glycerol and directly used in the glycerolysis reactions, which formed a pseudo-homogeneous system. The production of MG and diglycerides (DG) from oil was monitored by using 1 H-NMR, 13 C-NMR and HPLC. When compared with the conventional NaOH catalyst, CuO-nano used alone showed less activity, but adding NaOH to the CuO-nano exhibited a synergistic effect by increasing the MG yield significantly. The oil conversion, MG and DG yield were achieved at 95, 71 and 24%, respectively, for the new catalyst system composed of CuO-nano and NaOH. The mechanism of the glycerolysis reaction over CuO-nano and NaOH was elucidated. A hetero/homogeneous catalyst system was used in glycerolysis of oil and significantly improved the selectivity for monoglyceride at high oil conversion.
ISSN:1144-0546
1369-9261
DOI:10.1039/c6nj01461e