| abstract |
The disclosure generally relates to CCS sorbents, particularly for CO 2 /H 2 O displacement desorption process. The sorbent includes an aluminum oxide support and an alkali metal salt impregnated on the support. The support can be prepared by creating and extruding a dough to create an extrudate, which is then drying and calcined to form the support. Calcination temperatures can be between about 120°C and 500°C, preferably about 200°C to about 400°C. The sorbents demonstrate improved CO 2 loadings and better H 2 O/CO 2 ratios, as well as improved stability. Compositions and methods of making are disclosed. |