Carbon dioxide gas in a 10% CO
2-90% N
2 mixture was fixed with Ca(OH)
2 granules under a dry condition between 100 and 800°C. The fraction of fixed CO
2 was highest between 500 and 600°C. More than 90% CO
2 was fixed under the controlled gas flow rate, weight of Ca(OH)
2, temperature and time. The porous CaO particles, which were prepared by dehydration of Ca(OH)
2, reacted with CO
2 gas and CaCO
3 was formed on the surface of CaO particles. The CO
2 recovery system using Ca(OH)
2 makes possible to CO
2 fixation by the use of simple equipment and method, and this system is effective for the minor factory.
抄録全体を表示