Effect of Molar Ratios on the Catalytic Performance of Fe-Zr Bimetallic Catalysts for CO₂ Hydrogenation to Light Olefins
Faculty Mentor
Cheng Zhang
Area of Research
Chemistry
Major
Veterinary Technology
Description
The rising levels of CO₂ emissions have had a significant environmental impact, necessitating the development of efficient strategies for CO₂ utilization. One promising approach is the catalytic conversion of CO₂ into fuels or value-added chemicals, such as light olefins. This study focuses on identifying an optimal Fe-Zr bimetallic catalyst for CO₂ hydrogenation. A series of Fe-Zr catalysts with varying molar ratios (50:1, 30:1, 20:1, 10:1, 5:1, 3:1, 1:1) were synthesized using a novel preparation method and evaluated for their catalytic performance. Among the investigated compositions, the Fe/Zr = 10:1 molar ratio exhibited superior catalytic activity and selectivity toward light olefins. The catalysts were tested in a flow-bed reactor over a temperature range of 275–400°C, with product distribution analyzed via on-line gas chromatography (GC). The results demonstrate that the Fe-Zr bimetallic catalyst effectively promotes CO₂ hydrogenation, with Fe/Zr = 10:1 achieving the highest performance. This study provides valuable insights into the role of Fe-Zr interactions in CO₂ conversion and contributes to the development of advanced catalytic systems for sustainable carbon utilization.
Effect of Molar Ratios on the Catalytic Performance of Fe-Zr Bimetallic Catalysts for CO₂ Hydrogenation to Light Olefins
The rising levels of CO₂ emissions have had a significant environmental impact, necessitating the development of efficient strategies for CO₂ utilization. One promising approach is the catalytic conversion of CO₂ into fuels or value-added chemicals, such as light olefins. This study focuses on identifying an optimal Fe-Zr bimetallic catalyst for CO₂ hydrogenation. A series of Fe-Zr catalysts with varying molar ratios (50:1, 30:1, 20:1, 10:1, 5:1, 3:1, 1:1) were synthesized using a novel preparation method and evaluated for their catalytic performance. Among the investigated compositions, the Fe/Zr = 10:1 molar ratio exhibited superior catalytic activity and selectivity toward light olefins. The catalysts were tested in a flow-bed reactor over a temperature range of 275–400°C, with product distribution analyzed via on-line gas chromatography (GC). The results demonstrate that the Fe-Zr bimetallic catalyst effectively promotes CO₂ hydrogenation, with Fe/Zr = 10:1 achieving the highest performance. This study provides valuable insights into the role of Fe-Zr interactions in CO₂ conversion and contributes to the development of advanced catalytic systems for sustainable carbon utilization.