Abstract
Abstract The integration of CO 2 capture and storage process based on mineral carbonation using recyclable ammonium salts is a new approach to capture carbon dioxide and convert it into mineral carbonates. This process avoids stripping CO 2 as pure gas from absorbents and compression of CO 2 , and therefore reduces energy consumption. The additives used in this process are recyclable ammonium salts, the NH 4 HSO 4 and NH 4 HCO 3 . The results from extraction experiments show that NH 4 HSO 4 was able to extract 100% of magnesium from serpentine at 100 °C after 3 hours. And the precipitation of C hydromagnesite using NH 4 HCO 3 solution is much more effective than using CO 2 , where the highest magnesium carbonation achieved 96%. Based on the experimental results, this process shows that the process has the potential to be cost-effective.
Published Version
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