2026 Volume 22 Issue 2 Pages 102-109
To decarbonize industry, it is essential for the industrial sector itself to drastically reduce the CO2 emitted into the atmosphere from its exhaust gases. The key technologies to achieve this are CO2 separation and capture technology and CO2 utilization technology. Carbon recycling can be regarded as a decarbonization strategy that combines these technologies. This approach involves almost completely separating and capturing the CO2 generated from the combustion of fossil fuels, and then effectively utilizing it by producing fuels, energy sources, and chemical products using the captured CO2 together with hydrogen produced from renewable electricity. However, both CO2 separation and capture technology and CO2 utilization technology require heat input for their operation, and in some cases, new heat is generated during the process. This paper explains the details of CO2 separation and capture technologies as well as CO2 utilization technologies, and from the perspective of heat—its demand and use—, and also organize the associated challenges and discuss future prospects.
