9. Interaction between Alkali Metals and Alumina Balls as Heat Carrier in BLUE Tower Process

Abstract

In Blue Tower process, two staged biomass gasification system, alumina balls used in moving bed. In this study, heat treatment tests of alumina balls with wood biomass were carried out in laboratory scale reactor. Alkali metals, Na and K, added to alumina balls were analyzed with Atomic Absorption Flame Emission Spectrophotometer and SEM-EDAX. It was cleared that a small amount of Na and K were added onto alumina balls.