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Effect of phenol addition on the performances of H–Y zeolite during methylcyclohexane transformation

Paper ID Volume ID Publish Year Pages File Format Full-Text
43089 45954 2009 7 PDF Available
Title
Effect of phenol addition on the performances of H–Y zeolite during methylcyclohexane transformation
Abstract

The transformation of a mixture of methylcyclohexane and a small amount of phenol, as representative of the transformation of a mixture of biomass-derived oxygenates and Fluid Catalytic Cracking (FCC) feedstock was studied at 350 and 450 °C over a USHY zeolite. At 350 °C, the addition of phenol increases the deactivation of the zeolite catalyst, which is due to phenol adsorption on both Brönsted and Lewis acid sites, in addition to the formation of coke from methylcyclohexane. Whatever the contact time and the phenol amount, this deactivation is always partial, which suggests that a substantial portion of the active sites of the HY zeolite is not affected by deactivation. Finally, the increase of the reaction temperature (to 450 °C) allows limiting the effect of phenol addition on the zeolite activity and stability.

Graphical abstractThe transformation of a mixture of methylcyclohexane and a small amount of phenol, as representative of a mixture of bio-oil and Fluid Catalytic Cracking (FCC) feedstock, was studied at various temperatures over a USHY zeolite. At 350 °C, the adsorption of phenol on both Brönsted and Lewis acid sites increases the zeolite deactivation. The increase of the reaction temperature allows limiting the effect of phenol addition on the zeolite activity and stability.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Bio-oils; Zeolites; Catalytic cracking; Methylcyclohexane; Phenol; Deactivation; Coking
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Effect of phenol addition on the performances of H–Y zeolite during methylcyclohexane transformation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 353, Issue 1, 31 January 2009, Pages 123–129
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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