CO2 capture using amine incorporated UiO-66 in atmospheric pressure

• Published in: Journal of porous materials Vol. 26; no. 6; pp. 1831 - 1838
• Main Authors: Mutyala, Suresh, Yu, Ya-Dong, Jin, Wei-Guang, Wang, Zhi-Shuo, Zheng, Deng-Yue, Ye, Chun-Rong, Luo, Binbin
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.12.2019; Springer Nature B.V
• Subjects: Adsorption; Atmospheric pressure; Carbon dioxide; Carbon sequestration; Catalysis; Characterization and Evaluation of Materials; Chemical analysis; Chemistry; Chemistry and Materials Science; Composite materials; Deactivation; Fixed bed reactors; Fixed beds; Organic chemistry; Physical Chemistry; Tetraethylenepentamine; Adsorption kinetic model; Deactivation model; Fixed bed reactor; capture; UiO-66; CO
• ISSN: 1380-2224; 1573-4854
• DOI: 10.1007/s10934-019-00779-x

Composite material, tetraethylenepentamine (TEPA) incorporated UiO-66 was prepared by impregnation method to study CO 2 capture in a fixed bed reactor, atmospheric pressure. All synthesized adsorbents were characterized using PXRD, N 2 adsorption–desorption isotherms, FT-IR, TGA, SEM, and Elemental analysis. Characterization results have revealed that incorporated TEPA was present within pores of UiO-66. CO 2 adsorption was higher on TEPA incorporated UiO-66 compared to UiO-66. It was due to the chemical interaction between –NH 2 and CO 2 . High CO 2 adsorption capacity 3.70 mmol g −1 was obtained on 30TEPA/UiO-66 at 75 °C, 1 bar. Because of more flexibility and high dispersive nature of TEPA at this temperature. The same CO 2 adsorption capacity was obtained in each adsorption cycle without decomposition of the amine on 30TEPA/UiO-66. Avrami adsorption kinetic model has suggested adsorption of CO 2 on composite material was chemical adsorption and deactivation model suggested an initial rate of adsorption was higher on TEPA incorporated UiO-66.