Reactivity tests of the water-gas shift reaction on fresh and used fluidized bed materials from industrial DFB biomass gasifiers

► Investigations on WGS reaction for bed materials of FB gasification. ► Performance of fresh olivine was compared to used olivine and calcite. ► Temperature variation between 800 and 900 °C ► Conversion performance increased by higher temperature. ► Improved catalytic activity for used olivine due to Ca and K rich layer.