| Title |
Sulphur poisoning and regeneration of Li-Ru/Al2O3 2 O 3 dual function material for the integrated CO2 2 capture and methanation |
| ID_Doc |
8130 |
| Authors |
Cimino, S; Cepollaro, EM; Pazzi, M; Lisi, L |
| Title |
Sulphur poisoning and regeneration of Li-Ru/Al2O3 2 O 3 dual function material for the integrated CO2 2 capture and methanation |
| Year |
2024 |
| Published |
|
| Abstract |
Effective integration of the CO2 2 capture from flue gases and its subsequent methanation with renewable H2 2 to achieve a net-zero chemical looping process poses strong challenges in the development of highly performing Dual Function Materials (DFMs). Li-Ru/Al2O3 2 O 3 DFM has been shown to optimally operate the cyclic process at low temperature (260 - 280 degrees C) with stable performance upon ageing and outstanding tolerance to SOx x impurities in the flue gas, which, however, slowly deteriorate its CO2 2 capture capacity. This work investigates the mechanisms behind the sulfur-poisoning and self-regeneration capability of the catalytic features of the Li-Ru DFM as well as the irreversible inhibition of CO2 2 adsorption. Eventually, we demonstrate the remarkable effectiveness of a simple ex-situ regeneration procedure for a heavily sulfur-aged DFM aiming to minimize the consumption of critical raw materials within a circular economy approach. |
| PDF |
https://doi.org/10.1016/j.cattod.2023.114366
|
