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Simultaneous synthesis of styrene and aniline over activated carbon catalysts. Influence of the surface chemistry

Paper ID Volume ID Publish Year Pages File Format Full-Text
40491 45856 2013 9 PDF Available
Title
Simultaneous synthesis of styrene and aniline over activated carbon catalysts. Influence of the surface chemistry
Abstract

Activated carbons prepared from different precursors and two commercial carbons were applied as catalysts of ethylbenzene dehydrogenation carried out in the presence of nitrobenzene as an oxidiser (ODE-N process). Using of nitrobenzene enabled obtaining not only styrene, but also second industrially important product – aniline. Prior to the reaction some activated carbon samples were modified by oxidation with an air/helium mixture in order to generate carbonyl (quinone) structures on their surfaces, which are expected to be active centres of the process. The results obtained show that all samples prepared catalysed the ODE-N reaction and both surface texture and surface chemistry are important in the catalytic behaviour of activated carbons in this process.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (81 K)Download as PowerPoint slideHighlights► Oxidised activated carbons were prepared using different precursors. ► Activity of carbons in dehydrogenation/hydrogenation coupled process was determined. ► Oxidised samples were more effective catalysts in this process than the initial ones. ► Activity of the catalysts is probably affected by the carbonyl/quinone groups.

Keywords
Dehydrogenation of ethylbenzene; Hydrogenation of nitrobenzene; Activated carbons
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Simultaneous synthesis of styrene and aniline over activated carbon catalysts. Influence of the surface chemistry
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 452, 15 February 2013, Pages 39–47
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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