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Abstract. Amine-grafted silica (AGS) sorbent attrition characteristics for CO 2 capture were investigated in a fluidized bed system (35 mm I.D., 170 mm height) with air-jet equipment based on the ASTM D5757 standards. Difference in particle size distribution, cumulative attrition loss and rates were examined in both wet and dry conditions. The attrition loss increased by time, however this increment was lower in wet condition. The results indicate that amine sorbent particles generate fewer fines than expected. These AGS sorbent particles are suitable for fluidized bed operations.

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