Zn-Promoted χ-Fe₅C₂ Catalyst

Stable anti-coking

Zn promoter preserves the active χ-Fe₅C₂ phase from oxidation, enabling stable long-term CO₂ hydrogenation to light olefins.

Liu, Xianglin · Xu, Minjie · Cao, Chenxi · Yang, Zixu · Jing, Xu

Chinese Journal of Chemical Engineering 2023

Advantages

Stable activity and olefin selectivity over 200 h time-on-stream

Preservation of active χ-Fe₅C₂ phase