H2 production with low carbon content via MSR in packed bed membrane reactors for high-temperature polymeric electrolyte membrane fuel cell

P. Ribeirinha, M. Abdollahzadeh, M. Boaventura and A. Mendes

Applied Energy, 2017, vol. 188, issue C, 409-419

Abstract: This work compares the hydrogen purity and recovery produced by a methanol steam reforming (MSR) packed bed membrane reactor (PBMR) equipped with a membrane selective to hydrogen (Pd-Ag) and with a membrane selective to carbon dioxide (porous membrane filled with ionic liquids-ILs). A 3-dimensional non-isothermal PBMR model was developed in Fluent (Ansys™) for simulating a PBMR equipped with these two types of membranes and simulating a conventional packed bed reactor (PBR). For the development PBMR models a MSR mechanistic kinetic model was fitted to experimental reaction rates of a commercial catalyst (BASF RP60). The results indicated that selective hydrogen removal from the reaction medium originates a significant increase in the methanol conversion, while the carbon dioxide removal has a smaller effect. CO2-PBMR showed to be more efficient in terms of energy consumption than H2-PMBR. The simulation results showed also that ILs membranes must have a minimum permeance of ⩾1x10−6mols−1m−2Pa−1 and CO2/H2 selectivity of ⩾200 at 473K to be attractive for this type of applications. The advantages and limitations of each reactor configuration are discussed based on experimental and simulated data.

Keywords: Packed bed membrane reactor; Methanol steam reforming; CFD; Hydrogen purification; Palladium membrane; Ionic liquid membrane (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:appene:v:188:y:2017:i:c:p:409-419

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DOI: 10.1016/j.apenergy.2016.12.015

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