Utilization of alkaline converted ash blends from lignite and biomass combustion for carbon capture

The replacement of fossil fuels by renewable biofuels is one of the ways to limit climate change and improve the quality of the atmospheric air. For existing solid fuel combustion plants, a partial replacement of coal with biomass from wood or agriculture waste is applied. In this paper the effect of alkaline conversion of mixed coal and biomass ash to produce carbon sequestration sorbents was studied. The influence of the amount and type of biomass ash on the morphology, structure, surface characteristics and CO2 capture capacity of the obtained products was studied.