Effect of Combinations of Novel Amine Solvents, Processes and Packing at IHI's Aioi Pilot Plant

The effect of combinations of advanced amine solvents, processes and packing was evaluated at a 20 t-CO2/d pilot plant. The absorption performance of the advanced packing in the absorber improved significantly. However, the improvement rate of the performance was different depending on solvents and operating conditions. Compared to the conventional process, the latent heat loss with the advanced process was reduced by half.We have achieved regeneration energy of 2.5-2.6 GJ/t-CO2. Further reduction of the regeneration energy can be expected through full replacement to the advanced packing and the selection of solvents suited for high absorption performance packing.