Selective CO Methanation over Ceria-Supported Ni, Co, Fe Catalysts | Sciact - CRIS-system of Boreskov Institute of Catalysis

Selective CO Methanation over Ceria-Supported Ni, Co, Fe Catalysts Conference Abstracts

Conference

2015 AIChE Annual Meeting
08-13 Nov 2015 , Salt Lake City

Source

2015 AIChE Annual Meeting : Proceedings of a meeting held 8-13 November 2015, Salt Lake City, Utah, USA (CD-ROM)
Compilation, American Institute of Chemical Engineers ( AIChE ). 2015. ISBN 9781510818408.

Output data

Year: 2015, Article number : 621al, Pages count :

Authors

Potemkin Dmitriy ^1,2 , Snytnikov Pavel ^1,2,3 , Konishcheva Margarita ^1,2 , Sobyanin Vladimir ^1,2

Affiliations

1	Boreskov Institute of Catalysis, Novosibirsk, Russia
2	Novosibirsk State University, Novosibirsk, Russia
3	UNICAT Ltd., Novosibirsk, Russia

Funding (1)

Russian Foundation for Basic Research

14-03-00457

The selective CO methanation in hydrogen-rich gas mixtures in the presence of CO2 is a promising way for deep CO removal designed for low-temperature proton-exchanged membrane fuel cell feeding applications, as well as a challenging fundamental problem of substrate-selective hydrogenation. Besides the target CO methanation reaction (1), undesirable CO2 methanation (2) and reverse water-gas shift (3) reactions may occur, causing considerable hydrogen losses and increasing CO outlet concentration: CO+3H2 = CH4 + H2O; ΔHo= -206 kJ/mol (1) CO2+4H2 = CH4 + 2H2O; ΔHo= -165 kJ/mol (2) CO2 + H2 = CO + H2O; ΔHo= 41 kJ/mol (3) In spite of extensive research efforts Ru- and Ni-based systems remain the most active catalysts for CO and CO2methanation [1]. At the same time, metals such as Co and Fe are known to be active in carbon oxides hydrogenation reactions, including Fischer-Tropsch synthesis and RWGS, but the properties of Fe and Co-based systems in the selective CO methanation are not studied. This work reports the results of comparative study of Ni-, Co- and Fe/CeO2catalysts, prepared from nitrate and chloride precursors, in the selective CO methanation. https://aiche.confex.com/aiche/2015/webprogram/Paper435279.html

Potemkin D. , Snytnikov P. , Konishcheva M. , Sobyanin V.
Selective CO Methanation over Ceria-Supported Ni, Co, Fe Catalysts
In compilation 2015 AIChE Annual Meeting : Proceedings of a meeting held 8-13 November 2015, Salt Lake City, Utah, USA (CD-ROM). – American Institute of Chemical Engineers ( AIChE )., 2015. – ISBN 9781510818408.

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