CO2 recovery

Published: 04 July 2008  04:30 PM
Source: The Engineer Online

Mitsubishi Heavy Industries (MHI) and German energy giant E.ON are to jointly test a system for recovering carbon dioxide (CO₂) from flue-gas emissions at a coal-fired power plant in Germany.

The CO₂ recovery system - to be added to one of E.ON's existing plants - will be capable of capturing 100 metric tons of CO₂ per day.

The system includes a flue-gas cooling tower, a CO₂ absorption tower using MHI's KS-1 solvent, and a CO₂ desorption tower for separating the CO₂ from the absorbent.

One feature of MHI's CO₂ recovery system is that it is claimed to use less energy than its competitors. In Japan, a testing plant capable of recovering 10 tons of CO₂ per day using the MHI process has been operating at a coal-fired power generation plant in Nagasaki since July 2006.

Tests conducted at the German plant will focus mainly on reducing the amount of energy consumed in the CO₂ recovery process, and will be conducted over a period of two years at a cost of €10m.

Operation of the plant is due to commence in earnest early in 2010.

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