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Molecular simulation of natural gas storage in Cu-BTC metal–organic framework

  • We tested the MOF framework Cu-BTC for natural gas (NG) storage. Adsorption isotherms of C1–C4 alkanes were simulated applying the Grand Canonical ensemble and the Monte Carlo algorithm in a classical molecular mechanics approach. Experimental monocomponent isotherm of the alkanes was used to validate the force field. We performed multicomponent adsorptions calculations for three differentWe tested the MOF framework Cu-BTC for natural gas (NG) storage. Adsorption isotherms of C1–C4 alkanes were simulated applying the Grand Canonical ensemble and the Monte Carlo algorithm in a classical molecular mechanics approach. Experimental monocomponent isotherm of the alkanes was used to validate the force field. We performed multicomponent adsorptions calculations for three different quaternary mixtures of C1–C4 alkanes, matching typical NG streams composition, and predicted theoretical storage capacities, efficiency and accumulation of the NG within that composition. Despite being one of the frameworks with greatest storage capacity of methane, we found that Cu-BTC presented great sensitivity to the variation of the heavier alkanes in NG composition. When we increase the percentage of butane from 0.1% to 0.7% in the mixture, the mass of components retained in the discharge pressure (1 bar) increases from 35 to 60%. We also perform siting and interaction energy investigations and compare the NG storage performance of the Cu-BTC with that of activated carbons. To our knowledge, this is the first study regarding the efficiency of the NG storage in Cu-BTC.show moreshow less

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Metadaten
Document Type:Article (reviewed)
Zitierlink: https://opus.hs-offenburg.de/3588
Bibliografische Angaben
Title (English):Molecular simulation of natural gas storage in Cu-BTC metal–organic framework
Author:Paulo G. M. Mileo, Célio Loureiro Cavalcante, Jens MöllmerStaff MemberGND, Marcus LangeStaff Member, Jörg Hofmann, Sebastião M. P. Lucena
Date of Publication (online):2014/09/19
Publisher:Elsevier
First Page:194
Last Page:201
Parent Title (English):Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume:462
ISSN:0927-7757
DOI:https://doi.org/10.1016/j.colsurfa.2014.09.017
Language:English
Inhaltliche Informationen
Institutes:Fakultät Maschinenbau und Verfahrenstechnik (M+V)
Institutes:Bibliografie
GND Keyword:Gasbehälter; Metallorganisches Netzwerk; Simulation
Formale Angaben
Open Access: Closed Access 
Licence (German):License LogoUrheberrechtlich geschützt