The EAGLE Gasifier
The EAGLE Gasifier is an oxygen-blown two-stage dry-feed reactor currently under development by the Electric Power Development Company in Japan. A 150 t/d pilot plant has been built and commenced trials in March 2002 (Tajima and Tsunoda 2002).
The first stage operates in an oxygen rich mode at temperatures of around 1600°C. The outlet temperature from the second stage, which operates oxygen lean with coal and recycled char, is of the order of 1150°C. The reactor uses tangential firing to promote a longer residence time for the coal particles. Coal is supplied in about equal quantities to the two stages, and the reactor is controlled by adjusting the oxygen rates.