Research Website
https://sites.google.com/site/rgounder/gounder
Keywords
Heterogeneous Catalysis, Zeolites, Infrared Spectroscopy, Oligomerization
Presentation Type
Poster
Research Abstract
High demand for energy production and limited fossil fuel reserves are two factors that motivate intense research for new alternative energy resources. While we are still far from completely moving to renewable energy solutions, a new solution that replaces crude oil and coal with shale gas is currently under investigation. For this modern technology, new zeolite catalysts need to be developed for the conversion of light hydrocarbons gases to liquid transportation fuels. These catalysts are of special interest in the production of liquid fuels since they exhibit high reaction rates, molecular sieving properties and selectivity behavior. In this work, the effect of sequential ion exchange on the K/Al ratio of ZSM-5, CHA and FER zeolites was investigated. This was done using a 0.5M KNO3 solution to exchange NH4 ions with K ions on the zeolite framework. CHA zeolites used in this work were synthesized and characterized using X-ray diffraction. On the other hand, atomic adsorption spectroscopy was used to determine the K/Al ratio on ZSM-5, FER and CHA zeolites. Our results show that the potassium uptake on the zeolite does not change significantly with sequential ion exchange.
Session Track
Combustion and Energy
Recommended Citation
Melanie A. Brunet Torres, Philip Kester, and Rajamani Gounder,
"Identification of Proximal and Isolated Aluminum Heteroatoms in Zeolites by Infrared Spectroscopy"
(August 2, 2018).
The Summer Undergraduate Research Fellowship (SURF) Symposium.
Paper 58.
https://docs.lib.purdue.edu/surf/2018/Presentations/58
Included in
Identification of Proximal and Isolated Aluminum Heteroatoms in Zeolites by Infrared Spectroscopy
High demand for energy production and limited fossil fuel reserves are two factors that motivate intense research for new alternative energy resources. While we are still far from completely moving to renewable energy solutions, a new solution that replaces crude oil and coal with shale gas is currently under investigation. For this modern technology, new zeolite catalysts need to be developed for the conversion of light hydrocarbons gases to liquid transportation fuels. These catalysts are of special interest in the production of liquid fuels since they exhibit high reaction rates, molecular sieving properties and selectivity behavior. In this work, the effect of sequential ion exchange on the K/Al ratio of ZSM-5, CHA and FER zeolites was investigated. This was done using a 0.5M KNO3 solution to exchange NH4 ions with K ions on the zeolite framework. CHA zeolites used in this work were synthesized and characterized using X-ray diffraction. On the other hand, atomic adsorption spectroscopy was used to determine the K/Al ratio on ZSM-5, FER and CHA zeolites. Our results show that the potassium uptake on the zeolite does not change significantly with sequential ion exchange.
https://docs.lib.purdue.edu/surf/2018/Presentations/58