Journal :   Asian Journal of Research in Chemistry

Volume No. :   9

Issue No. :  3

Year :  2016

Pages :   145-149

ISSN Print :  0974-4169

ISSN Online :  0974-4150


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Synthesis, Characterization, and Catalytic Ability Evaluation of MgO--Al2O3/TiO2-SO42- for Transesterification of Waste Cooking Oil by Methanol



Address:   Minh Đuc Ngo1, Thi Nhu Mai Tran2, Thi Phuong Ly Giang3, Ba Trung Nguyen1
1Department of Chemistry, University of Education, The University of Danang, 2Department of Chemistry, Hanoi University of Science
3Hanoi University of Science and Technology
*Corresponding Author
DOI No: 10.5958/0974-4150.2016.00024.9

ABSTRACT:
The catalytic system MgO-?-Al2O3/TiO2-SO42- was synthesized, and then characterized by XRD, IR, NH3 - TPD, CO2-TPD, BET, EDX methods. As can be seen from the results of physical characterization, the synthesized MgO-?-Al2O3/TiO2-SO42- material owns a large surface area of 261.85 m2/g, a mean capillary diameter of 95.5 Å. The presence of TiO2 and SO42- creates strong acid sites on the catalyst surface, as indicated by the NH3 desorption temperature peak at 509.5°C and 546.6°C. The presence MgO phase creates strong basic sites, as specified by the CO2 desorption temperature peak at 502.1°C. A transesterification between methanol and waste cooking oil (the volume ratio of methanol to oil of 1:1) using MgO-?-Al2O3/TiO2-SO42- as a catalyst was carried out at 120°C for 4 hours. The reaction efficiency was about 98.1%.
KEYWORDS:
Biodiesel synthesis;MgO-γ-Al2O3/TiO2-SO42-; Acid-base catalyst; mesoporous material; transesterification.
Cite:
Minh Đuc Ngo, Thi Nhu Mai Tran, Thi Phuong Ly Giang, Ba Trung Nguyen. Synthesis, Characterization, and Catalytic Ability Evaluation of MgO--Al2O3/TiO2-SO42- for Transesterification of Waste Cooking Oil by Methanol. Asian J. Research Chem. 9(3): March, 2016; Page 145-149.
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