Nanofibrous carbon with herringbone structure as an effective catalyst of the H2S selective oxidation

Shinkarev, V. V.; Glushenkov, A. M.; Kuvshinov, D. G.; Kuvshinov, G. G.

Abstract

Granular nanofibrous carbons (NFCs) with herringbone structure were synthesised by the decomposition of natural gas over Ni/Al2O3 catalysts, and their performance in the selective oxidation of hydrogen sulphide was studied. Samples obtained over pure Ni catalysts are the strongest mechanically and easiest to produce. However, they show low selectivity for sulphur and are unstable during operation. Boiling in nitric acid followed by annealing led to improvements in catalytic stability and a significant increase in the selectivity for sulphur in the direct oxidation of hydrogen sulphide. The addition of large amounts of water vapour to the reaction mixture dramatically improved the selectivity and stability of the NFCs. © 2010 Elsevier Ltd. All rights reserved.

Citation

Shinkarev, V. V., Glushenkov, A. M., Kuvshinov, D. G., & Kuvshinov, G. G. (2010). Nanofibrous carbon with herringbone structure as an effective catalyst of the H2S selective oxidation. Carbon, 48(7), 2004-2012. https://doi.org/10.1016/j.carbon.2010.02.008

• Journal Article Type: Article
• Acceptance Date: Feb 5, 2010
• Online Publication Date: Feb 11, 2010
• Publication Date: Jun 1, 2010
• Deposit Date: Apr 21, 2022
• Journal: Carbon
• Print ISSN: 0008-6223
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 48
• Issue: 7
• Pages: 2004-2012
• DOI: https://doi.org/10.1016/j.carbon.2010.02.008
• Public URL: https://hull-repository.worktribe.com/output/3591684