Zeolitic imidazolate frameworks for kinetic separation of propane and propene
AssigneeRutgers, The State University of New Jersey
InventorsJing Li, Kunhao Li, David H. Olson
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Abstract
Zeolitic Imidazolate Frameworks (ZIFs) characterized by organic ligands consisting of imidazole ligands that are either essentially all 2-chloroimidazole ligands or essentially all 2-bromoimidazole ligands are disclosed. Methods for separating propane and propene with the ZIFs of the present invention, as well as other ZIFs, are also disclosed.
Claims12
A Zeolitic Imidazolate Framework (ZIF) consisting of a metal organic framework characterized by organic ligands consisting of imidazole ligands that are either essentially all 2-chloroimidazole ligands or essentially all 2-bromoimidazole ligands.
A method for the separation of propane and propene, comprising the steps of:
- (1) providing a bed containing a Zeolitic Imidazolate Framework (ZIF) consisting of a metal organic framework characterized by organic ligands consisting of imidazole ligands that are either essentially all 2-chloroimidazole ligands, essentially all 2-bromoimidazole ligands or essentially all 2-methylimidazole ligands;
- (2) contacting the bed with a mixture of propane and propene for a period of time and at a temperature and pressure sufficient for the ZIF to adsorb propene-enriched mixture of propane and propene, thereby decreasing the concentration of propene in the non-adsorbed mixture of propane and propene;
- and
- (3) collecting the non-adsorbed mixture of propane and propene in which the propene content has been decreased.
Dependencies are inferred from the claim text.