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eISSN: 2083-5906
ISSN: 1230-1485
ISSN: 1230-1485
ORIGINAL RESEARCH
In-situ Methanation of Carbon Dioxide Fixed
in the Pores of the Adsorbent Material
1
University of Chemistry and Technology, Prague; Department of Sustainable Fuels and Green Chemistry; Technická 5, 166 28 Prague 6 – Dejvice, Czech Republic
Submission date: 2026-02-26
Final revision date: 2026-07-15
Acceptance date: 2026-08-27
Online publication date: 2026-11-03
Corresponding author
Lenka Polívková
Department of Sustainable Fuels and Green Chemistry, University of Chemistry and Technology, Prague, Technická, 5, Prague, Czech Republic
Department of Sustainable Fuels and Green Chemistry, University of Chemistry and Technology, Prague, Technická, 5, Prague, Czech Republic
KEYWORDS
TOPICS
ABSTRACT
The methanation of carbon dioxide via its reaction with hydrogen has recently become a widely
studied topic. This process is typically investigated in a flow system with a catalyst placed in a catalytic
reactor through which a mixture of reactant gases (carbon dioxide and hydrogen) flows. In contrast,
this study investigates a batch reactor concept, where carbon dioxide is adsorbed within the porous
structure of the catalyst and hydrogen is subsequently introduced. The novelty of this research lies
in the technological arrangement of the process, in which a single material simultaneously acts as
both adsorbent and catalyst within one reactor, enabling alternating CO2 adsorption and its subsequent
methanation. The central component is therefore an adsorbent for carbon dioxide capture that also
serves as a catalyst for its conversion into methane. A system based on this principle can therefore
be used both for capturing carbon dioxide from various gas mixtures with recovery in purified form
and for its conversion into synthetic methane, provided a sufficient supply of hydrogen is available.
This research confirms that the investigated single-reactor methanation approach using one material
that functions both as adsorbent and catalyst is fully operational and suitable for further testing
at the pilot scale.
CONFLICT OF INTEREST
The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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| eISSN: | 2083-5906 |
| ISSN: | 1230-1485 |
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