(55h) CO2 Dissociation over Ni Supported on Doped Ceria Catalysts
AIChE Spring Meeting and Global Congress on Process Safety
2022
2022 Spring Meeting and 18th Global Congress on Process Safety Proceedings
Fuels and Petrochemicals Division - See Also Topicals 4, 6, and 7
Poster Session: Fuels and Petrochemicals Division
Monday, April 11, 2022 - 5:00pm to 7:00pm
CO2 dissociation to CO is an interesting fundamental reaction that can be part of the chemical looping process which utilizes natural gas and CO2/H2O to generate synthesis gas with solar power. Based on previous research, Ni-CeZrO2 synthesized via various methods, including the combustion methods using citric acid, is a promising material for CO2/H2O reforming of CH4. This study focuses on using temperature programmed reduction followed by a pulse CO2 dissociation reaction to characterize and evaluate the synthesized catalysts. The reduction characteristics and pulse reaction activity and stability of catalysts are summarized and compared. There are optimum Ni and Zr loadings for the activity, capacity, and stability of Ni-CeZrO2 for CO2 dissociation. Various pre-treatment methods, such as non-thermal plasma treatments, are studied to modify those catalysts for improved CO2 dissociation.