Effect of Thermal Treatment Duration on CO2 Hydrogenation to Light Olefins Using Fe-Cu-Zn Cataylysts
Faculty Mentor
Cheng Zheng
Area of Research
Chemistry
Major
Biology, Pre-Medical Sciences
Description
INTRODUCTION: Increasing CO₂ concentration in the atmosphere has had a significant impact on the global climate, contributing to glacial melting, rising sea levels, and disruptions to marine and terrestrial ecosystems.
METHOD: In our study, we examined how variations in thermal treatment time impact CO₂ hydrogenation products via a Fe-Cu-Zn catalyst with a 1:1:1 molar ratio. Based on previous studies, this composition has been shown to be highly selective for light olefins. To improve catalytic activity, a new synthesis method was used to produce highly magnetic Fe₃O₄, which plays an essential role in enhancing catalyst performance. Catalysts were treated at time intervals of 2 minutes, 6 minutes, and 20 minutes, followed by a complete calcination step. The prepared samples were then compressed and loaded into quartz tubes for testing. CO₂ hydrogenation reactions were carried out in a flow-bed reactor under controlled conditions, with product composition analyzed using online gas chromatography (GC).
RESULTS: These results suggest that changing the length of thermal treatment affects light olefin production.
DISCUSSION/CONCLUSION: Understanding this relationship can help improve how catalysts are prepared and make CO₂ conversion more efficient.
Effect of Thermal Treatment Duration on CO2 Hydrogenation to Light Olefins Using Fe-Cu-Zn Cataylysts
INTRODUCTION: Increasing CO₂ concentration in the atmosphere has had a significant impact on the global climate, contributing to glacial melting, rising sea levels, and disruptions to marine and terrestrial ecosystems.
METHOD: In our study, we examined how variations in thermal treatment time impact CO₂ hydrogenation products via a Fe-Cu-Zn catalyst with a 1:1:1 molar ratio. Based on previous studies, this composition has been shown to be highly selective for light olefins. To improve catalytic activity, a new synthesis method was used to produce highly magnetic Fe₃O₄, which plays an essential role in enhancing catalyst performance. Catalysts were treated at time intervals of 2 minutes, 6 minutes, and 20 minutes, followed by a complete calcination step. The prepared samples were then compressed and loaded into quartz tubes for testing. CO₂ hydrogenation reactions were carried out in a flow-bed reactor under controlled conditions, with product composition analyzed using online gas chromatography (GC).
RESULTS: These results suggest that changing the length of thermal treatment affects light olefin production.
DISCUSSION/CONCLUSION: Understanding this relationship can help improve how catalysts are prepared and make CO₂ conversion more efficient.