Patent ID: 9138682
Filing Date: 2015-09-22
Classification: B01D,B01J,Y02C

Abstract:
1. A method of preparing a CO 2 absorbent for exhaust gas, comprising: preparing a slurry using solid materials comprising an active component at 5 to 70 wt %, a support at 5 to 70 wt %, an inorganic binder at 5 to 70 wt % and a recycling improver at 5 to 70 wt %, based on the total weight of the slurry; primarily preparing an absorbent by drying the prepared slurry in a spray drier; and preparing a final absorbent by drying and calcinating the primarily prepared absorbent, wherein the active component is potassium carbonate or potassium bicarbonate, wherein the support is alumina, wherein the inorganic binder is cement, clay, or ceramic, wherein the recycling improver is hydrotalcite, and wherein the absorbent material molded in the preparation of the final absorbent has a recycling capability of 70 to 100%.