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Title: Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks

Abstract

A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.

Inventors:
;
Issue Date:
Research Org.:
Univ. of California, Oakland, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735065
Patent Number(s):
10722863
Application Number:
15/297,114
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
DOE Contract Number:  
AR0000103; AR0000402; SC0001015
Resource Type:
Patent
Resource Relation:
Patent File Date: 10/18/2016
Country of Publication:
United States
Language:
English

Citation Formats

Long, Jeffrey R., and McDonald, Thomas M. Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks. United States: N. p., 2020. Web.
Long, Jeffrey R., & McDonald, Thomas M. Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks. United States.
Long, Jeffrey R., and McDonald, Thomas M. Tue . "Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks". United States. https://www.osti.gov/servlets/purl/1735065.
@article{osti_1735065,
title = {Cooperative chemical adsorption of acid gases in functionalized metal-organic frameworks},
author = {Long, Jeffrey R. and McDonald, Thomas M.},
abstractNote = {A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

Works referenced in this record:

High capacity immobilized amine sorbents
patent, October 2007


Amine enriched solid sorbents for carbon dioxide capture
patent, April 2003


Alkylamine functionalized metal-organic frameworks for composite gas separations
patent, January 2018