Preparation and characterization of waste ion-exchange resin-based activated carbon for CO2 capture

• Published in: Adsorption : journal of the International Adsorption Society 2016-04, Vol.22 (3), p.385-396
• Main Authors: Wei, Mengqi, Yu, Qingbo, Mu, Tongtong, Hou, Limin, Zuo, Zongliang, Peng, Jiayan
• Format: Article
• Language: English
• Subjects: Chemistry; Chemistry and Materials Science; Engineering Thermodynamics; Heat and Mass Transfer; Industrial Chemistry/Chemical Engineering; Surfaces and Interfaces; Thin Films
• ISSN: 0929-5607; 1572-8757
• DOI: 10.1007/s10450-016-9787-8

Waste ion-exchange resin was utilized as precursor to produce activated carbon by KOH chemical activation, on which the effects of different activation temperatures, activation times and impregnation ratios were studied in this paper. The CO 2 adsorption of the produced activated carbon was tested by TGA at 30 °C and environment pressure. Furthermore, the effects of preparation parameters on CO 2 adsorption were investigated. Experimental results show that the produced activated carbons are microporous carbons, which are suitable for CO 2 adsorption. The CO 2 adsorption capacity increases firstly and then decreases with the increase of activation temperature, activation time and impregnation rate. The maximum adsorption capacity is 81.24 mg/g under the condition of 30 °C and pure CO 2 . The results also suggest that waste ion-exchange resin-based activated carbons possess great potential as adsorbents for post-combustion CO 2 capture.