With the consumption of fossil fuels and the threat of climate change, the demand for green energy is increasing. Methane is an important clean energy, with lots of advantages, such as high efficiency, low pollution, lower greenhouse gas emissions, etc. Nowadays, methane production mostly relies on fossil fuels such as natural gas and coal. However, due to the limited resources of those energy sources, it is difficult to meet the growing energy demand. Therefore, it is of great significance to find new methods and ways to produce methane.

In recent years, with the intensification of global climate change and the increasingly prominent environmental problems, the demand and application of renewable energy have become more and more urgent. One of these renewable energy sources –hydrogen, plays an important role in transportation, energy supply and other fields.

CO2 with H2 to methane is a method to reduce carbon emission and achieve green production. The key point is to find efficient catalysts that can synthesize methane with high selectivity and yield at low temperature and pressure. In addition, the catalyst needs longer lifetime, higher stability and higher capacity to ensure that yield of methane productivity.

Carbon dioxide hydrogenation to methane technology is a method to produce methane by hydrogenation reaction of carbon dioxide and hydrogen. The method requires a certain catalyst, nickel-based methanation catalyst is commonly used.

The main reaction is: CO2+4H2 ⇌ CH4 + 2H2O

The technology of carbon dioxide hydrogenation to synthesize methane is expected to become a new direction of energy transformation. Its application prospects are mainly manifested in the following aspects:

1. Energy transition

This technology can convert carbon dioxide into methane, thereby reducing thedependence on fossil energy and achieving energy transformation.

2. Promote environmental protection

The technology can convert waste gas resources into useful methane, helping to reduce environmental pollution and promote green development.

3. Promote municipal waste disposal

The technology can be applied to the treatment of municipal waste, and methane can be generated by hydrogenation reaction after gasification of waste, which can effectively use municipal waste resources.

4. Accelerate the application of new energy

This technology can be combined with renewable energy such as solar energy, wind energy, etc., to form a new sustainable energy supply system and promote the application and development of new energy.

Overall, the application of carbon dioxide with hydrogen to methane technology has a wide prospect, which can contribute to energy transformation and sustainable development.