Effect of excess iron on oxidative dehydrogenation of 1-butene over a series of zinc ferrite catalysts

BLACK, C., Spence, R. R., Whiston, K., Sproules, S. and Jackson, S. D. (2018) Effect of excess iron on oxidative dehydrogenation of 1-butene over a series of zinc ferrite catalysts. Progress in Petrochemical Science, 2(2), 000534.

Abstract

The influence of excess Fe3+ in ZnFe2O4 for the catalytic oxidative dehydrogenation of 1-butene to 1, 3-butadiene was investigated to try to clarify inconsistencies in the existing literature. A series of nanoscale zinc ferrite powders were produced with increasing Fe: Zn ratios. The materials were characterized by a range of techniques, which showed the presence of α-Fe2O3 as a distinct phase with an increasing excess of Fe3+ and SEM highlighted the increased presence of surface structures on the ferrites at higher Fe: Zn ratios. Reaction testing showed α-Fe2O3to be virtually inactive for the oxidative dehydrogenation of 1-butene. Results for the ferrite catalysts showed a significant decrease in both conversion and yield with an increasing excess of Fe3+. Therefore an excess of Fe3+ has a negative effect on catalytic activity and selectivity of zinc ferrite for the oxidative dehydrogenation of 1-butene, but acts as a promoter for competing hydrogenation and combustion side reactions.

• Item Type: Articles
• Additional Information: The authors would like to acknowledge funding for this project from Invista Textiles (UK) and the provision of a studentship for one of us (CB). X-ray Photoelectron Spectroscopy (XPS) was performedat the National EPSRC XPS Users’ Service (NEXUS) at Newcastle University, an EPSRC Mid-Range Facility.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Sproules, Dr Stephen and BLACK, CORY and Jackson, Professor David and Spence, Mr Ronald
• Authors: BLACK, C., Spence, R. R., Whiston, K., Sproules, S., and Jackson, S. D.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Progress in Petrochemical Science
• Publisher: Crimson Publishers
• Copyright Holders: Copyright © 2018 S. David Jackson
• First Published: First published in Progess in Petrochemical Science 2(2):000534
• Publisher Policy: Reproduced under a Creative Commons License