INS study of ethene on Ag+ cations exchanged on Chabazite and Faujasite Zeolites
Many chemicals and polymers relies on the production of ethene that exceeded 144 million tons in 2015, mostly by steam cracking. The separation of ethene from other hydrocarbons is actually carried out by the cryogenic distillation. The high energy demand of this technology makes desirable the development of new processes, being the zeolites based separation the most promising. This alternative route takes advantage of the molecular sieving properties of zeolites and the possibility of tuning their polarity. One approach to adjust the polar character of silicoaluminate zeolites is by the presence of cations in the voids channels and cavities. Here, we propose to study the interaction of ethene adsorbed on small pore zeolite Chabazite (CHA) and a large pore zeolite Faujasite (FAU) with Si/Al ratios of 5 and 40 and having as counter-cations silver. We think that INS is the ideal spectroscopic technique for understanding the mechanism of ethene-zeolite interaction, particularly when combined with advanced Solid State NMR studies and theoretical calculations.
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Teresa Blasco; JIMENEZ RUIZ Monica; Martinez-Ortigosa, Joaquin; Miguel Palomino and REY Fernando. (2018). INS study of ethene on Ag+ cations exchanged on Chabazite and Faujasite Zeolites. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-05-488
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