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Catalytic deoxygenation of oleic acid in continuous gas flow for the production of diesel-like hydrocarbons

Paper ID Volume ID Publish Year Pages File Format Full-Text
41446 45889 2011 7 PDF Available
Title
Catalytic deoxygenation of oleic acid in continuous gas flow for the production of diesel-like hydrocarbons
Abstract

Continuous gas phase deoxygenation of oleic acid in the presence of hydrogen employing a granular 2 wt% Pd/C catalyst was investigated under solvent free conditions. Conversion of oleic acid and selectivity to the desired diesel-like C17 hydrocarbons heptadecane and heptadecenes was studied at different reaction conditions such as temperature, gas flow and catalyst amount. The best hydrocarbon yield was achieved with low reaction temperatures, high catalyst amounts and high hydrogen flows. To further decrease the reaction temperature but yet maintain a pure gas phase reaction, reactions were conducted in vacuum. Furthermore, water was added in varying amounts to support desorption and to determine if catalyst deactivation could be overcome. The deoxygenation catalyst was characterized by nitrogen adsorption isotherms (BET; Brunauer–Emmet–Teller method), X-ray powder diffraction (XRD), thermogravimetric analysis (TGA) and field emission scanning electron microscopy (FESEM).

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (72 K)Download as PowerPoint slideHighlights► Diesel-like hydrocarbons from renewable feedstock. ► Decarboxylation and decarbonylation reactions took place. ► Continuous gas phase reactions under solvent-free conditions. ► Up to 28.5% selectivity to C17 hydrocarbons.

Keywords
Biofuels; Continuous gas phase reactor; Deoxygenation; Palladium-on-carbon (Pd/C); Oleic acid
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Catalytic deoxygenation of oleic acid in continuous gas flow for the production of diesel-like hydrocarbons
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 399, Issues 1–2, 31 May 2011, Pages 198–204
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