Lab-Scale Carbonation of Wood Ash for CO2-Sequestration

This study evaluated the CO2 sequestration potential with combustion ashes in aqueous phase. The aim was to provide a cost-effective carbon method for unit operators (flue gas cleaning) or biogas producers (biogas upgrading). Therefore, two separate test series were executed identify carbonation efficiency (CE) of bottom wood ash (1) at different mixing ratios water batch experiments and (2) under dynamic flow conditions. It furthermore whether subsequent use carbonated soil amendment could be possible process passed into sewage. showed that had an influence on CE. mean CE varied between approximately 14% 17%. Thus, proved suitable processes. dischargeable, has chalking, as no legal thresholds exceeded. used low-tech technology. Compared existing energy consuming cost intensive capture storage technologies, beneficial, it represents approach.