Abstract

Oxy-fuel combustion is expected to be one of the promising systems on CO2 capture from pulverized-coal fired power plant, and enable the CO2 to be captured in a more cost-effective manner compared to other CO2 capture process. Some studies in this area were implemented under Australia-Japan consortium established in 2004. The comparative testing of the important components by using three Australian coals has been recently conducted under both oxy-fuel and air combustion conditions. The purposes of these tests were to obtain design data on flame stability, combustion characteristics and plant operation including turn-down test. The tests have indicated a number of important outcomes including a good comparison of normal air with oxy-fuel combustion, significant reduction in NO x mass emission rates under oxy-fuel combustion and the collection of data to validate other combustion modeling work.

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