title: A method for screening the potential of MOFs as CO2 adsorbents in pressure swing adsorption processes.
abstract: This work reports the adsorption and coadsorption data of CO(2)/CH(4)/CO mixtures on several metal-organic frameworks [MOFs; MIL-100(Cr), MIL-47(V), MIL-140(Zr)-A, Cu-btc, and MIL-53(Cr)] and compares them with reference adsorbents, that is, zeolite NaX and an activated carbon material, AC35. We also evaluate the effect of H(2)O on CO(2) adsorption and on the stability of the structures. Based on the experimental adsorption data, the performance potential of MOFs in several pressure swing adsorption processes is estimated by making a ranking of working capacities and separation factors. We discuss the separation of biogas, the purification of H(2) produced by steam reforming of methane, and the removal of CO(2) from synthesis gas in IGCC (integrated gasification combined cycle) systems. Some MOFs are very well placed in the ranking of (isothermal) working capacity vs. selectivity. Yet, performance is not the only criterion for the selection of MOFs. Ease and cost of synthesis and long-term stability are other important aspects that have to be taken into account.
authors.affiliation: Department of Separation, Division of Separation and Catalysis, IFP Energies Nouvelles, Solaize, France. gerhard.pirngruber@ifpen.fr
authors.forename: Gerhard D
authors.initials: GD
authors.lastname: Pirngruber
authors.forename: Lomig
authors.initials: L
authors.lastname: Hamon
authors.forename: Sandrine
authors.initials: S
authors.lastname: Bourrelly
authors.forename: Philip L
authors.initials: PL
authors.lastname: Llewellyn
authors.forename: Estelle
authors.initials: E
authors.lastname: Lenoir
authors.forename: Vincent
authors.initials: V
authors.lastname: Guillerm
authors.forename: Christian
authors.initials: C
authors.lastname: Serre
authors.forename: Thomas
authors.initials: T
authors.lastname: Devic
mesh_terms: D000327:Adsorption; D002245:Carbon Dioxide / Q000737:chemistry* / Q000302:isolation & purification; D002248:Carbon Monoxide / Q000737:chemistry / Q000302:isolation & purification; D006358:Hot Temperature; D008697:Methane / Q000737:chemistry / Q000302:isolation & purification; D009942:Organometallic Compounds / Q000737:chemistry*; D011312:Pressure; D014867:Water / Q000737:chemistry; D017641:Zeolites / Q000737:chemistry
chemical_list: D009942:Organometallic Compounds; D014867:Water; D017641:Zeolites; D002245:Carbon Dioxide; D002248:Carbon Monoxide; D008697:Methane