SrO was loaded on Fe2O3 through impregnation. The performance of the derived sorbents were tested in terms of CO2 capture, and in particular about the influence of calcination temperature during sorbent preparation (https://doi.org/10.1007/978-981-16-0742-4_12). SrO is supposed to be a high temperature adsorbent. However, in this work, room temperature and 1 atm based CO2 capture was performed, and temperature programme desorption was used to discuss the desorption of CO2. The results showed that a temperature around 500 °C was required to desorb CO2 for the adsorbents calcined under 500 °C (following figure). However, for the adsorbent calcined at 600°C, a significant high desorption temperature (~700 °C) was required, ascribed to the formation of alloy at high calcination temperature.
Figure – CO2-TPD analysis of the produced SrO-Fe2O3 materials. https://doi.org/10.1007/978-981-16-0742-4_12
In general, this work didn’t investigate the high-temperature CO2 capture performance of ZrO based adsorbent