Catalytic steam reforming of bio-oil

R. Trane, S. Dahl, M.S. Skjøth-Rasmussen, A.D. Jensen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Hydrogen and synthesis gas can be produced in an environmentally friendly and sustainable way through steam reforming (SR) of bio-oil and this review presents the state-of-the-art of SR of bio-oil and model compounds hereof. The possible reactions, which can occur in the SR process and the influence of operating conditions will be presented along with the catalysts and processes investigated in the literature.Several catalytic systems with Ni, Ru, or Rh can achieve good performance with respect to initial conversion and yield of hydrogen, but the main problem is that the catalysts are not stable over longer periods of operation (>100 h) due to carbon deposition. Support materials consisting of a mixture of basic oxides and alumina have shown the potential for low carbon formation and promotion with K is beneficial with respect to both activity and carbon formation.Promising results have been obtained in both fluidized and fixed bed reactors, but the coke formation appears to be less significant in fluidized beds. The addition of O2 to the system can decrease the coke formation and provide autothermal conditions at the expense of a lower H2 and CO-yield.The SR of bio-oil is still in an early stage of development and far from industrial application mainly due the short lifetime of the catalysts, but there are also other aspects of the process which need clarification. Future investigations in SR of bio-oil could be to find a sulfur tolerant and stable catalyst, or to investigate if a prereformer concept, which should be less prone to deactivation by carbon, is suitable for the SR of bio-oil.

Original languageEnglish
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number8
Pages (from-to)6447-6472
ISSN0360-3199
DOIs
Publication statusPublished - 2012

Bibliographical note

Abbreviations: APR, aqueous phase reforming; DS, desulfurization; GHSV, gas hourly space velocity; LHSV, liquid hourly space velocity; LHV, lower heating value; POX, partial oxidation; SR, steam reforming; SV, space velocity; WGS, water gas shift; WHSV, weight hourly space velocity; Y, yield.

Keywords

  • APR - aqueous phase reforming
  • DS - desulfurization
  • GHSV - gas hourly space velocity
  • LHSV - liquid hourly space velocity
  • LHV - lower heating value
  • POX - partial oxidation
  • SR - steam reforming
  • SV - space velocity
  • WGS - water gas shift
  • WHSV - weight hourly space velocity
  • Y - yield

Cite this

Trane, R. ; Dahl, S. ; Skjøth-Rasmussen, M.S. ; Jensen, A.D. / Catalytic steam reforming of bio-oil. In: International Journal of Hydrogen Energy. 2012 ; Vol. 37, No. 8. pp. 6447-6472.
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Catalytic steam reforming of bio-oil. / Trane, R.; Dahl, S.; Skjøth-Rasmussen, M.S.; Jensen, A.D.

In: International Journal of Hydrogen Energy, Vol. 37, No. 8, 2012, p. 6447-6472.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Catalytic steam reforming of bio-oil

AU - Trane, R.

AU - Dahl, S.

AU - Skjøth-Rasmussen, M.S.

AU - Jensen, A.D.

N1 - Abbreviations: APR, aqueous phase reforming; DS, desulfurization; GHSV, gas hourly space velocity; LHSV, liquid hourly space velocity; LHV, lower heating value; POX, partial oxidation; SR, steam reforming; SV, space velocity; WGS, water gas shift; WHSV, weight hourly space velocity; Y, yield.

PY - 2012

Y1 - 2012

N2 - Hydrogen and synthesis gas can be produced in an environmentally friendly and sustainable way through steam reforming (SR) of bio-oil and this review presents the state-of-the-art of SR of bio-oil and model compounds hereof. The possible reactions, which can occur in the SR process and the influence of operating conditions will be presented along with the catalysts and processes investigated in the literature.Several catalytic systems with Ni, Ru, or Rh can achieve good performance with respect to initial conversion and yield of hydrogen, but the main problem is that the catalysts are not stable over longer periods of operation (>100 h) due to carbon deposition. Support materials consisting of a mixture of basic oxides and alumina have shown the potential for low carbon formation and promotion with K is beneficial with respect to both activity and carbon formation.Promising results have been obtained in both fluidized and fixed bed reactors, but the coke formation appears to be less significant in fluidized beds. The addition of O2 to the system can decrease the coke formation and provide autothermal conditions at the expense of a lower H2 and CO-yield.The SR of bio-oil is still in an early stage of development and far from industrial application mainly due the short lifetime of the catalysts, but there are also other aspects of the process which need clarification. Future investigations in SR of bio-oil could be to find a sulfur tolerant and stable catalyst, or to investigate if a prereformer concept, which should be less prone to deactivation by carbon, is suitable for the SR of bio-oil.

AB - Hydrogen and synthesis gas can be produced in an environmentally friendly and sustainable way through steam reforming (SR) of bio-oil and this review presents the state-of-the-art of SR of bio-oil and model compounds hereof. The possible reactions, which can occur in the SR process and the influence of operating conditions will be presented along with the catalysts and processes investigated in the literature.Several catalytic systems with Ni, Ru, or Rh can achieve good performance with respect to initial conversion and yield of hydrogen, but the main problem is that the catalysts are not stable over longer periods of operation (>100 h) due to carbon deposition. Support materials consisting of a mixture of basic oxides and alumina have shown the potential for low carbon formation and promotion with K is beneficial with respect to both activity and carbon formation.Promising results have been obtained in both fluidized and fixed bed reactors, but the coke formation appears to be less significant in fluidized beds. The addition of O2 to the system can decrease the coke formation and provide autothermal conditions at the expense of a lower H2 and CO-yield.The SR of bio-oil is still in an early stage of development and far from industrial application mainly due the short lifetime of the catalysts, but there are also other aspects of the process which need clarification. Future investigations in SR of bio-oil could be to find a sulfur tolerant and stable catalyst, or to investigate if a prereformer concept, which should be less prone to deactivation by carbon, is suitable for the SR of bio-oil.

KW - APR - aqueous phase reforming

KW - DS - desulfurization

KW - GHSV - gas hourly space velocity

KW - LHSV - liquid hourly space velocity

KW - LHV - lower heating value

KW - POX - partial oxidation

KW - SR - steam reforming

KW - SV - space velocity

KW - WGS - water gas shift

KW - WHSV - weight hourly space velocity

KW - Y - yield

U2 - 10.1016/j.ijhydene.2012.01.023

DO - 10.1016/j.ijhydene.2012.01.023

M3 - Journal article

VL - 37

SP - 6447

EP - 6472

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 8

ER -