Tungsten supported Ti/SiO2 nanoflowers as reusable heterogeneous catalyst for biodiesel production

Mandeep Kaur, Rashi Malhotra and Amjad Ali

Renewable Energy, 2018, vol. 116, issue PA, 109-119

Abstract: Present work demonstrates an easy route by sol-gel method, without using any template, for the synthesis of flower shaped tungsten (W) supported TiO2/SiO2catalyst for the triglyceride transesterification. The structure of the catalyst was established by powder X-ray diffraction and surface morphology and particle size by field emission scanning and high resolution transmission electron microscopy studies, respectively. The oxidation state of tungsten by X-ray photoelectron spectroscopy was found to be +6. Under the optimized reaction conditions of 5 wt% of 20-W/TiO2/SiO2-700 catalyst, 30:1 methanol to oil molar ratio and 65 °C reaction temperature, more than 98% fatty acid ethyl ester yield was obtained in 4 h. The kinetic and thermodynamic parameter of the reaction was also evaluated following the pseudo-first order equation. The catalyst was recycled in four consecutive runs and total metal contents in biodiesel was observed <5 ppm to maintain the stability of the catalyst.

Keywords: Heterogeneous catalyst; Transesterification; Waste cooking oil; Biodiesel; Catalyst reusability (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S096014811730928X
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:116:y:2018:i:pa:p:109-119

DOI: 10.1016/j.renene.2017.09.065

Access Statistics for this article

Renewable Energy is currently edited by Soteris A. Kalogirou and Paul Christodoulides

More articles in Renewable Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().