Sustainable H-2 generation via steam reforming of biogas in membrane reactors: H2S effects on membrane performance and catalytic activity

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Iulianelli A., Manisco M., Bion N., Le Valant A., Epron F., Colpan C. Ö., ...Daha Fazla

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.46, sa.57, ss.29183-29197, 2021 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Sayı: 57
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.ijhydene.2020.10.038
  • Dergi Adı: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Artic & Antarctic Regions, Chemical Abstracts Core, Communication Abstracts, Environment Index, INSPEC
  • Sayfa Sayıları: ss.29183-29197
  • Anahtar Kelimeler: Pd-Au/Al2O3 membrane, Membrane reactor, Hydrogen, Rh-based catalyst, Biogas steam reforming, HYDROGEN SEPARATION, PROCESS INTENSIFICATION, FLUIDIZED-BED, MODEL BIOGAS, PALLADIUM MEMBRANES, COMPOSITE MEMBRANES, ALLOY MEMBRANES, PD, NI, GAS
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

This study proposes the steam reforming of a synthetic biogas stream containing 200 ppm of H2S, carried out in a non-commercial supported Pd-Au/Al2O3 membrane reactor (7-8 mu m selective layer thickness) at 823 K and 150 kPa over a non-commercial Rh(1%)/MgAl2O4/Al2O3 catalyst. This system is able to recover almost 80% of the total hydrogen produced during the reaction and shows good resistance to the H2S contamination, as confirmed by stable methane conversions for more than 400 h under operation. For comparison, the same reaction was carried out in a commercial self-supported Pd-Ag membrane (150 mu m wall thickness), yielding a hydrogen recovery equal to 40% at 623 K and 200 kPa, and presenting stable methane conversions for less than 200 h under operation due to the effect of the H2S contamination. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.