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Transesterification reaction of vegetable oils, using superacid sulfated TiO2–base catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
42898 45945 2008 6 PDF Available
Title
Transesterification reaction of vegetable oils, using superacid sulfated TiO2–base catalysts
Abstract

Superacid sulfated titania catalyst, TiO2/SO4 (TS-series), have been prepared via the sol–gel technique, with different sulfate concentrations. The relation of structure and catalytic activity of the prepared material have been evaluated. The obtained material was characterized by several techniques, as infrared and Raman absorption spectroscopy, pyridine-adsorption infrared spectroscopy, thermogravimetric analyses and obtention of N2 adsorption–desorption isotherms. The catalyst that exhibits the highest catalytic activity in the methanolysis of soybean and castor oils at 120 °C, for 60 min (40% and 25%, respectively) was that which displayed the highest specific surface area, average pores diameter and pore volume, and highest percentage in sulfate groups (TS-5).

Graphical abstractSuperacid sulfated titania (TiO2/SO4) catalysts (TS series) have been prepared via the sol–gel technique, with different sulfate concentrations, and tested in the methanolysis reaction of soybean and castor oils at 120 °C, for 60 min. These catalysts have been characterized by several techniques in order to determine their physico-chemical characteristics and the influence of their properties in their catalytic activity. The catalyst that exhibits the highest catalytic activity (TS-5) was that which displayed the highest specific surface area, average pores diameter and pore volume, and highest percentage in sulfate groups.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Superacids; Biodiesel; Transesterification; TiO2/SO4
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Transesterification reaction of vegetable oils, using superacid sulfated TiO2–base catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 347, Issue 1, 1 September 2008, Pages 100–105
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