Recent advances in integrated carbon dioxide capture and methanation technology

The development of novel carbon dioxide capture or utilization technology is of great significance to reduce carbon dioxide emissions from fossil energy utilization, as well as to alleviate global warming. The integrated carbon dioxide capture and utilization (ICCU) technology, which integrate carbon dioxide adsorption and in-situ conversion to realize efficient conversion of carbon dioxide to carbon containing fuels over dual function material, has attracted extensive attentions due to its advantages of low energy consumption and high efficiency. In this paper, the composition and characteristics of the dual function materials for CO₂ capture and methanation were summarized. The factors which affected the methanation process were discussed from the perspectives of reaction temperature, reaction time, feed gas compositions. The challenges and opportunities in the near future were also proposed.