Abstract

The most important issue involved with the chemical absorption method for recovering carbon dioxide from a power plant's flue gas is to develop energy-efficient absorbents. KS-1 absorbent was presented at ICCDR-2 in Kyoto. After the conference, efforts to develop energy-efficient absorbents have been made and a new absorbent KS-2 was developed as a result and its performance confirmed by the pilot plant. KS-2 has similar energy efficiency as KS-1 both of which require 20% less energy than MEA. KS-2 is however more stable than KS-1 and a more efficient absorbent for low CO 2 content flue gas. Detailed steam system was also discussed in this conference and accurate calculation results were presented.

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