Abstract
The growing emission of carbon dioxide (CO2), combined with its ecotoxicity, is the reason for the intensification of research on the new technology of CO2 management. Currently, it is believed that it is not possible to eliminate whole CO2 emissions. However, a sustainable balance sheet is possible. The solution is technologies that use carbon dioxide as a raw material. Many of these methods are based on CO2 methanation, for example, projects such as Power-to-Gas, production of fuels, or polymers. This article presents the concept of using CO2 as a raw material, the catalytic conversion of carbon dioxide to methane, and consideration on CO2 methanation catalysts and their design.
Highlights
Because a positive balance of emission is related to high financial penalties, the possibility of reducing emission is attractive in economic terms
A long period of use of a product formed from carbon dioxide will block CO2 for a longer period of time, in this way preventing the reintroduction of carbon dioxide to the atmosphere
Catalytic methanation is a central issue of the Power-to-Gas concept [28]
Summary
The share of transport in the economy grows, and the current technologies in the power industry and transport are based on fossil fuels [2]. It is not quite clear whether the increase in the CO2 atmospheric concentration of anthropogenic nature is crucial for the greenhouse effect. There is no doubt that phenomena related to the overloading of the atmosphere with CO2 result in such an effect The opinion that it is the anthropogenic CO2 which threatens the fate of our civilization has increasingly often prevailed [3,4,5,6]. CO2 is an available and cheap chemical raw material [10]
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