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Copyright of Eurasian Physical Technical Journal is the property of E.A. Buketov Karaganda University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The Ukraine war has strongly accentuated the ongoing energy and environmental issues, thus requiring a fast development of alternative and more local fuels. For instance, recent research has focused on the catalytic conversion of carbon dioxide into methane. Here we review carbon dioxide methanation with dihydrogen, reaction conditions, catalyst properties, and preparation methods. Carbon dioxide conversion and methane selectivity can reach 90% and above by increasing temperature from 250 to 400 °C, regardless of catalyst types. Methane yields can reach up to 96% by increasing dihydrogen to carbon dioxide feed ratios from 2:1 to 4:1. We discuss issues of sintering, fouling, and poisoning that lead to the deactivation of catalysts. [ABSTRACT FROM AUTHOR]