Metal-Organic Frameworks for Ethylene/Ethane Separation

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GONG-DISSERTATION-2020.pdf (6.95 MB)
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Gong, Yutao
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School of Chemical and Biomolecular Engineering
School established in 1901 as the School of Chemical Engineering; in 2003, renamed School of Chemical and Biomolecular Engineering
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http://hdl.handle.net/1853/64978
Abstract
The current cryogenic distillation process in industry for ethylene/ethane separation is highly energy-consuming and has significant ethylene loss. Adsorption-based separation is an approach that can operate the separation process at ambient temperature and pressure. This dissertation investigates the modification of metal-organic frameworks (MOFs) to facilitate their use as an adsorbent for ethylene/ethane separation. A detailed replication study on selective adsorption of ethane and ethylene in MOFs was conducted to explore the separation mechanisms and reproducibility of MOFs. Experimental investigations revealing trends related to the effect of missing coordinated water on ethylene/ethane separation and stability properties are addressed. Ligand functionalization was applied to enhance the adsorption capacity of MOFs. Furthermore, the impact of water vapor on the ethylene/ethane separation was evaluated to develop MOFs for practical applications.
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2020-07-06
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