Direct route from bio-ethanol to pure hydrogen through autothermal reforming in a membrane reactor: experimental demonstration, reactor modelling and design

V. Spallina, G.E. Matturro, C. Ruocco, E. Meloni, V. Palma, E. Fernandez, J. Melendez Rey, D.A. Pacheco Tanaka, J.L Viviente, M. van Sint Annaland, F. Gallucci

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Abstract

This work reports the integration of thin (∼3–4 μm thick) Pd-based membranes for H2 separation in a fluidized bed catalytic reactor for ethanol auto-thermal reforming. The performance of a fluidized bed membrane reactor has been investigated from an experimental and numerical point of view. The demonstration of the technology has been carried out over 50 h under reactive conditions using 5 thin Pd-based alumina-supported membranes and a 3 wt%Pt-10 wt%Ni catalyst deposited on a mixed CeO2/SiO2 support. The results have confirmed the feasibility of the concept, in particular the capacity to reach a hydrogen recovery factor up to 70%, while the operation at different fluidization regimes, oxygen-to-ethanol and steam-to-ethanol ratios, feed pressures and reactor temperatures have been studied. The most critical part of the system is the sealing of the membranes, where most of the gas leakage was detected. A fluidized bed membrane reactor model for ethanol reforming has been developed and validated with the obtained experimental results. The model has been subsequently used to design a small reactor unit for domestic use, showing that 0.45 m2 membrane area is needed to produce the amount of H2 required for a 5 kWe PEM fuel-cell based micro-CHP system.
Original languageEnglish
Pages (from-to)666-681
JournalEnergy
Volume143
DOIs
Publication statusPublished - 2018

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Experimental reactors
Reforming reactions
Ethanol
Demonstrations
Membranes
Hydrogen
Fluidized beds
Fluidization
Leakage (fluid)
Catalyst supports
Fuel cells
Steam
Alumina
Recovery
Catalysts
Oxygen
Gases

Cite this

Spallina, V. ; Matturro, G.E. ; Ruocco, C. ; Meloni, E. ; Palma, V. ; Fernandez, E. ; Melendez Rey, J. ; Pacheco Tanaka, D.A. ; Viviente, J.L ; van Sint Annaland, M. ; Gallucci, F. / Direct route from bio-ethanol to pure hydrogen through autothermal reforming in a membrane reactor: experimental demonstration, reactor modelling and design. In: Energy. 2018 ; Vol. 143. pp. 666-681.
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abstract = "This work reports the integration of thin (∼3–4 μm thick) Pd-based membranes for H2 separation in a fluidized bed catalytic reactor for ethanol auto-thermal reforming. The performance of a fluidized bed membrane reactor has been investigated from an experimental and numerical point of view. The demonstration of the technology has been carried out over 50 h under reactive conditions using 5 thin Pd-based alumina-supported membranes and a 3 wt{\%}Pt-10 wt{\%}Ni catalyst deposited on a mixed CeO2/SiO2 support. The results have confirmed the feasibility of the concept, in particular the capacity to reach a hydrogen recovery factor up to 70{\%}, while the operation at different fluidization regimes, oxygen-to-ethanol and steam-to-ethanol ratios, feed pressures and reactor temperatures have been studied. The most critical part of the system is the sealing of the membranes, where most of the gas leakage was detected. A fluidized bed membrane reactor model for ethanol reforming has been developed and validated with the obtained experimental results. The model has been subsequently used to design a small reactor unit for domestic use, showing that 0.45 m2 membrane area is needed to produce the amount of H2 required for a 5 kWe PEM fuel-cell based micro-CHP system.",
author = "V. Spallina and G.E. Matturro and C. Ruocco and E. Meloni and V. Palma and E. Fernandez and {Melendez Rey}, J. and {Pacheco Tanaka}, D.A. and J.L Viviente and {van Sint Annaland}, M. and F. Gallucci",
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Direct route from bio-ethanol to pure hydrogen through autothermal reforming in a membrane reactor: experimental demonstration, reactor modelling and design. / Spallina, V.; Matturro, G.E.; Ruocco, C.; Meloni, E.; Palma, V.; Fernandez, E.; Melendez Rey, J.; Pacheco Tanaka, D.A.; Viviente, J.L; van Sint Annaland, M.; Gallucci, F.

In: Energy, Vol. 143, 2018, p. 666-681.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Direct route from bio-ethanol to pure hydrogen through autothermal reforming in a membrane reactor: experimental demonstration, reactor modelling and design

AU - Spallina, V.

AU - Matturro, G.E.

AU - Ruocco, C.

AU - Meloni, E.

AU - Palma, V.

AU - Fernandez, E.

AU - Melendez Rey, J.

AU - Pacheco Tanaka, D.A.

AU - Viviente, J.L

AU - van Sint Annaland, M.

AU - Gallucci, F.

PY - 2018

Y1 - 2018

N2 - This work reports the integration of thin (∼3–4 μm thick) Pd-based membranes for H2 separation in a fluidized bed catalytic reactor for ethanol auto-thermal reforming. The performance of a fluidized bed membrane reactor has been investigated from an experimental and numerical point of view. The demonstration of the technology has been carried out over 50 h under reactive conditions using 5 thin Pd-based alumina-supported membranes and a 3 wt%Pt-10 wt%Ni catalyst deposited on a mixed CeO2/SiO2 support. The results have confirmed the feasibility of the concept, in particular the capacity to reach a hydrogen recovery factor up to 70%, while the operation at different fluidization regimes, oxygen-to-ethanol and steam-to-ethanol ratios, feed pressures and reactor temperatures have been studied. The most critical part of the system is the sealing of the membranes, where most of the gas leakage was detected. A fluidized bed membrane reactor model for ethanol reforming has been developed and validated with the obtained experimental results. The model has been subsequently used to design a small reactor unit for domestic use, showing that 0.45 m2 membrane area is needed to produce the amount of H2 required for a 5 kWe PEM fuel-cell based micro-CHP system.

AB - This work reports the integration of thin (∼3–4 μm thick) Pd-based membranes for H2 separation in a fluidized bed catalytic reactor for ethanol auto-thermal reforming. The performance of a fluidized bed membrane reactor has been investigated from an experimental and numerical point of view. The demonstration of the technology has been carried out over 50 h under reactive conditions using 5 thin Pd-based alumina-supported membranes and a 3 wt%Pt-10 wt%Ni catalyst deposited on a mixed CeO2/SiO2 support. The results have confirmed the feasibility of the concept, in particular the capacity to reach a hydrogen recovery factor up to 70%, while the operation at different fluidization regimes, oxygen-to-ethanol and steam-to-ethanol ratios, feed pressures and reactor temperatures have been studied. The most critical part of the system is the sealing of the membranes, where most of the gas leakage was detected. A fluidized bed membrane reactor model for ethanol reforming has been developed and validated with the obtained experimental results. The model has been subsequently used to design a small reactor unit for domestic use, showing that 0.45 m2 membrane area is needed to produce the amount of H2 required for a 5 kWe PEM fuel-cell based micro-CHP system.

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DO - 10.1016/j.energy.2017.11.031

M3 - Article

VL - 143

SP - 666

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