Accelerated carbonation of ceramic materials. Application to bricks from Andalusian factories (Spain)

Abstract This research explores the possibility of CO 2 sequestration in ceramic building materials, namely, bricks. The bricks used are rich in calcium and magnesium. The reaction with CO 2 was carried out in a sealed reactor with a 0.3 L volume in a CO 2 atmosphere at a pressure of 10 bars. The solid-water ratio was 4:1, and the reaction time ranged from 24 h to 30 days. The results show that the carbonation was proportional to the reaction time. These results open new future possibilities of using brick waste to capture CO 2 at ambient temperatures and low pressures.