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Oxidative dehydrogenation of n-octane using vanadium-magnesium oxide catalysts with different vanadium loadings

Paper ID Volume ID Publish Year Pages File Format Full-Text
42233 45916 2010 10 PDF Available
Title
Oxidative dehydrogenation of n-octane using vanadium-magnesium oxide catalysts with different vanadium loadings
Abstract

In this study, vanadium-magnesium oxide (VMgO) catalysts with different vanadium loadings were synthesized by the impregnation method and characterized by BET, ICP-OES, IR, powder XRD, TEM, SEM, TPR-H2, and TPD of ammonia. The catalysts were tested for the oxidative dehydrogenation (ODH) of n-octane in a continuous flow fixed bed reactor at GHSV of 6000 h−1 and a temperature range of 350–550 °C using air as an oxidant and nitrogen as a make-up gas to give 9% n-octane in the gaseous mixture. The results showed that the vanadium concentration affects both textural and chemical properties of the catalysts and consequently their catalytic activity and selectivity towards the desired products (octenes and aromatics). The catalyst with a V2O5 concentration of 15% showed the best catalytic activity and productivity for the ODH products; especially for 1-octene and styrene.

Graphical abstractThe varying properties of vanadium-magnesium oxide catalysts with different vanadium loadings influenced the activity and selectivity to octenes and C8 aromatics from n-octane.Figure optionsDownload full-size imageDownload high-quality image (85 K)Download as PowerPoint slide

Keywords
Oxidative dehydrogenation; n-Octane; Styrene; Octenes; VMgO catalysts
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Oxidative dehydrogenation of n-octane using vanadium-magnesium oxide catalysts with different vanadium loadings
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 373, Issues 1–2, 31 January 2010, Pages 122–131
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