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Esterification of cetyl alcohol with palmitic acid over WO3/Zr-SBA-15 and Zr-SBA-15 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
38714 45788 2016 7 PDF Available
Title
Esterification of cetyl alcohol with palmitic acid over WO3/Zr-SBA-15 and Zr-SBA-15 catalysts
Abstract

•WO3/Zr-SBA-15 and Zr-SBA-15 catalysts were synthesized and tested for esterification of palmitic acid and cetyl alcohol.•Brønsted acid sites plays the key role for the activity of the catalysts.•Zr-SBA-15 catalyst produced cetyl palmitate with 63.1% yield and was reusable up to 3 cycles.•Zr incorporated SBA-15 was found to be a promising catalyst for esterification of long chain carboxylic acids and alcohols.

Tungsten loaded and Zr incorporated SBA-15 catalysts (WO3/Zr-SBA-15 and Zr-SBA-15) were developed for esterification of cetyl alcohol and palmitic acid. The influence of the Zr content, tungsten loading amount, calcination temperature, feed composition and catalyst amount has been studied. Higher tungsten loading decreased the acidity due to formation of WO3 crystals whereas calcination temperature enhanced the acidity by favoring the dispersion of WOx species. Activities of the catalyst changed depending on their amount of Brønsted sites and total number of acid sites. Zr-SBA-15 catalyst which had the highest amount of Brønsted acid sites gave maximum cetyl palmitate yield (63.1%). This catalyst retained its activity up to 3 reuse cycles without significant loss of activity.

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Keywords
Cetyl palmitate; Cetyl alcohol; Esterification; Mesoporous acid catalysts; Zr-SBA-15; Tungsten loaded
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Esterification of cetyl alcohol with palmitic acid over WO3/Zr-SBA-15 and Zr-SBA-15 catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 522, 25 July 2016, Pages 194–200
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
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