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Biomass to fuels: A water-free process for biodiesel production with phosphazene catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
42983 45950 2008 6 PDF Available
Title
Biomass to fuels: A water-free process for biodiesel production with phosphazene catalysts
Abstract

Non-ionic triamino(imino)phosphoranes (phosphazenes) give excellent results as base catalysts for the water-free alcoholysis of vegetable fatty esters. Two phosphazene catalysts, with different intrinsic basicities, P1-t-Bu and P4-t-Bu, together with reaction parameters, such as temperature, alcohol/oil molar ratio, or catalyst concentration, have been studied. It was found that activity can be directly correlated to the basicity of the catalyst. Very high biodiesel yields (93–95% mol) were achieved under mild reaction conditions with methanol and ethanol. The catalyst can be recovered and recycled.

Graphical abstractNon-ionic triamino(imino)phosphoranes (phosphazenes) give excellent results as base catalysts for the water-free alcoholysis of vegetable fatty esters. Two phosphazene catalysts, with different intrinsic basicities, P1-t-Bu and P4-t-Bu, together with reaction parameters, such as temperature, alcohol/oil molar ratio, or catalyst concentration, have been studied. It was found that activity could be directly correlated to the basicity of the catalyst. Very high biodiesel yields were achieved under mild reaction conditions with methanol and ethanol. The catalyst can be recovered and recycled. Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Biomass to fuels; Biodiesel; Transesterification; Alcoholysis; Organocatalysis; Phosphazene catalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 346, Issues 1–2, 31 August 2008, Pages 52–57
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