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Catalytic conversions in green aqueous media. Part 8: Partial and full hydrogenation of renewable methyl esters of vegetable oils ☆

Paper ID Volume ID Publish Year Pages File Format Full-Text
54009 46993 2015 13 PDF Available
Title
Catalytic conversions in green aqueous media. Part 8: Partial and full hydrogenation of renewable methyl esters of vegetable oils ☆
Abstract

•Partial hydrogenation of FAME catalyzed by highly active and selective water-soluble transition metal TPPTS complexes.•High activities of palladium(0) nanoparticle catalysts stabilized by nitrogen ligands with superior activity over Pd/TPPTS benchmark catalyst.•Upgraded biodiesel of improved oxidative stability, energy and environmental performance.•Full hydrogenation of methyl esters of palm kernel and sunflower oils to methyl stearate.•Reactions related to the manufacture of surfactants and foodstuffs with zero amounts of trans-fats.

This article reviews the partial hydrogenation of renewable polyunsaturated methyl esters of linseed, sunflower, Cynara cardunculus and soybean oils into their monounsaturated counterparts which is upgraded biodiesel fuel employing highly active and selective water-soluble rhodium, ruthenium and palladium TPPTS complexes and by water-dispersible palladium(0) nanoparticles stabilized by water-soluble nitrogen-containing ligands which possess even higher activities than those exhibited by Pd/TPPTS benchmark catalysts in aqueous/organic two-phase systems. Furthermore, this article presents a novel study on the full hydrogenation of polyunsaturated methyl esters of sunflower and palm kernel oils to obtain up to 99.0 mol% methyl stearate (MS) using water-soluble Rh- and Ru-TPPTS catalytic complexes under mild reaction conditions in aqueous/organic two-phase systems. The full hydrogenation reaction of polyunsaturated FAMEs into MS is an interesting catalytic reaction because MS is an industrial feedstock for the manufacture of specialties such as surfactants, emulsifiers, etc., and could also act as a model reaction for studying the full hydrogenation of edible oils to saturated fats to be further subjected to interesterification reactions with liquid edible vegetable oils to yield foodstuffs with zero amounts of trans-fats especially after publication of results of very recent investigations which have questioned whether there really are direct associations between saturated fat consumption and a higher cardiovascular disease risk.

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Keywords
Hydrogenation; Renewable methyl esters of vegetable oils; Biodiesel; Zero trans-fats; TPPTS; Water
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Catalytic conversions in green aqueous media. Part 8: Partial and full hydrogenation of renewable methyl esters of vegetable oils ☆
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 247, 1 June 2015, Pages 20–32
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