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Synthesis of bio-additives: Acetylation of glycerol over zirconia-based solid acid catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
50627 46805 2010 5 PDF Available
Title
Synthesis of bio-additives: Acetylation of glycerol over zirconia-based solid acid catalysts
Abstract

Acetylation of glycerol with acetic acid was investigated over ZrO2, TiO2–ZrO2, WOx/TiO2–ZrO2 and MoOx/TiO2–ZrO2 solid acid catalysts to synthesize monoacetin, diacetin and triacetin having interesting applications as bio-additives for petroleum fuels. The prepared catalysts were characterized by means of XRD, BET surface area, ammonia-TPD and FT-Raman techniques. The effect of various parameters such as reaction temperature, molar ratio of acetic acid to glycerol, catalyst wt.% and time-on-stream were studied to optimize the reaction conditions. Among various catalysts investigated, the MoOx/TiO2–ZrO2 combination exhibited highest conversion (~ 100%) with best product selectivity, and a high time-on-stream stability.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights►Acetylation of glycerol is an excellent reaction for the production of acetins. ►A novel method for the efficient utilization of bioglycerol to useful chemicals. ►The ammonia TPD results suggest that promoters create more acidic sites in TZ. ►WOx or MoOx promoted TiO2–ZrO2 mixed oxides are true green catalysts.

Keywords
Glycerol; Acetylation; Monoacetin; Triacetin; TiO2–ZrO2 mixed oxide; Promoted zirconia
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Synthesis of bio-additives: Acetylation of glycerol over zirconia-based solid acid catalysts
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 11, Issue 15, 25 September 2010, Pages 1224–1228
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
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Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us