Carbon dioxide is the world's recognized cause of global warming, so it is crucial to try to reuse it as a resource, which can not only solve environmental problems, but also has great significance for solving energy problems! Carbon dioxide catalytic hydrogenation to produce methane is considered to be the most effective technology for carbon dioxide recycling.

The choice of catalyst plays a key role in the co2 methanation reaction, and the common catalysts are mainly supported metal catalysts, such as elemental co, ni, ru, rh, pt or pd. The study shows that the catalytic activity of these catalysts is ru>rh>ni>co>pt>pd in order from high to low, in which ru and rh belong to precious metal materials, the price is relatively expensive, while ni and co are relatively cheap and favored. Methanation catalyst is one of good choices.

Main Advantages of CO2 to Methanation Technology:

1. It can convert waste gas into usable energy and reduce carbon emissions. Waste gases such as carbon dioxide and methane produced during industrial production or power generation can be reused through this technology, reducing carbon emissions and reducing dependence on fossil fuels.

2. Methane is a convenient fuel that is easy to store and use. This technology can convert carbon dioxide into methane, which is more convenient and sustainable in terms of storage and use.

3. It can be combined with other technologies to form a comprehensive utilization system. This technology can be combined with other renewable energy technologies such as wind and solar to form a more sustainable comprehensive utilization system and reduce the use of fossil energy. Carbon dioxide to methanation technology is a technology that can convert carbon dioxide into methane, and the technology is still in the research and development and experimental stage, and the specific use needs to be continuously explored and improved in practice. At the same time, the commercial application of this technology is also limited by cost and other aspects.