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Effect of pressure on the efficiency of nickel and nickel-copper catalysts in decomposition of methane

Kuvshinov, G. G.; Popov, M. V.; Tonkodubov, S. E.; Kuvshinov, D. G.

Authors

G. G. Kuvshinov

M. V. Popov

S. E. Tonkodubov

D. G. Kuvshinov



Abstract

Methane decomposition into hydrogen and nanofibrous carbon in the presence of high-percentage catalysts (70–90)% Ni–(0–20)% Cu–10% Al at a temperature of 948 K and pressures of 1 to 5 atm was studied in order to develop a technology for enrichment of natural gas with hydrogen. It was found that, With an increasing copper content in the catalyst and and with increasing pressure, the average, methane decomposition rate decreases by 10–20% and the catalyst lifetime and the specific yield of hydrogen (mol/molNi+Cu) become (3.8–12) times higher over the catalyst deactivation period. The mechanisms by which the pressure and the copper content of the catalyst affect these process characteristics are discussed.

Citation

Kuvshinov, G. G., Popov, M. V., Tonkodubov, S. E., & Kuvshinov, D. G. (2016). Effect of pressure on the efficiency of nickel and nickel-copper catalysts in decomposition of methane. Russian Journal of Applied Chemistry / Zhurnal Prikladnoi Khimii, 89(11), 1777-1785. https://doi.org/10.1134/s1070427216110070

Journal Article Type Article
Acceptance Date Sep 9, 2016
Online Publication Date Feb 24, 2017
Publication Date 2016-11
Deposit Date May 7, 2019
Journal Russian Journal of Applied Chemistry
Print ISSN 1070-4272
Electronic ISSN 1608-3296
Publisher MAIK Nauka/Interperiodica
Peer Reviewed Peer Reviewed
Volume 89
Issue 11
Pages 1777-1785
DOI https://doi.org/10.1134/s1070427216110070
Public URL https://hull-repository.worktribe.com/output/1738694
Publisher URL https://link.springer.com/article/10.1134%2FS1070427216110070