Development of energy-saving CO₂ separation and capture

Abstract

To achieve carbon neutrality by 2050, CO₂ separation and recovery from CO₂ emission sources such as waste incineration plant exhaust gas is essential. The problem with CO₂ separation and recovery by chemical absorption is that a large amount of thermal energy must be supplied for CO₂ dissipation in the regeneration process. We have developed a total energy-saving process that includes a new non-aqueous absorbent and a CO₂ emission facility, and expect to reduce the thermal energy required for the CO₂ regeneration process to less than 1.5 GJ/t-CO₂.

This paper reports on the development of an energy-saving CO₂ capture process using a new non-aqueous absorbent.