Steam reforming of cyclic model compounds of bio-oil over Ni-based catalysts: Product distribution and carbon formation

Rasmus Trane-Restrup, Anker Degn Jensen

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Steam reforming (SR) and oxidative steam reforming (OSR) of furfural, 2-methylfuran, and guaiacol have been investigated in the temperature range 400-800°C at a steam to carbon (S/C)-ratio of 5 and oxygen to carbon (O/C)-ratio of 0.2-1.4 over Ni/CeO2-K/MgAl2O4. Carbon oxides and H2 were the major products in the SR of 2-methylfuran and furfural, while the by-products were methane, ethanol, 2-propanol, and acetone. Temperatures of 500°C or above were needed to minimize the formation of by-products in the SR of 2-methylfuran and furfural. Phenolics, like benzenediols and phenol, were produced in high yields in the SR of guaiacol and temperatures of 780°C were needed to totally convert guaiacol to carbon oxides and H2.Carbon deposition was observed in the SR of all three model compounds and was most severe for guaiacol followed by furfural and 2-methylfuran. The carbon deposition could be reduced significantly by adding oxygen to the feed at a cost of a lower yield of H2. Stable operation was observed initially (first 4h) in the OSR of all compounds, but experiments over 24h showed signs of deactivation due to an accelerated rate of carbon deposition in the SR of furfural and guaiacol. Furthermore sintering was more severe in OSR.
Original languageEnglish
JournalApplied Catalysis B: Environmental
Volume165
Pages (from-to)117-127
ISSN0926-3373
DOIs
Publication statusPublished - 2015

Keywords

  • 2-Methylfuran
  • Carbon deposition
  • Furfural
  • Guaiacol
  • Steam reforming
  • 2-methylfuran
  • Bio oil
  • Carbon Formation
  • Model compound
  • Ni-based catalyst
  • Product distributions

Cite this

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title = "Steam reforming of cyclic model compounds of bio-oil over Ni-based catalysts: Product distribution and carbon formation",
abstract = "Steam reforming (SR) and oxidative steam reforming (OSR) of furfural, 2-methylfuran, and guaiacol have been investigated in the temperature range 400-800°C at a steam to carbon (S/C)-ratio of 5 and oxygen to carbon (O/C)-ratio of 0.2-1.4 over Ni/CeO2-K/MgAl2O4. Carbon oxides and H2 were the major products in the SR of 2-methylfuran and furfural, while the by-products were methane, ethanol, 2-propanol, and acetone. Temperatures of 500°C or above were needed to minimize the formation of by-products in the SR of 2-methylfuran and furfural. Phenolics, like benzenediols and phenol, were produced in high yields in the SR of guaiacol and temperatures of 780°C were needed to totally convert guaiacol to carbon oxides and H2.Carbon deposition was observed in the SR of all three model compounds and was most severe for guaiacol followed by furfural and 2-methylfuran. The carbon deposition could be reduced significantly by adding oxygen to the feed at a cost of a lower yield of H2. Stable operation was observed initially (first 4h) in the OSR of all compounds, but experiments over 24h showed signs of deactivation due to an accelerated rate of carbon deposition in the SR of furfural and guaiacol. Furthermore sintering was more severe in OSR.",
keywords = "2-Methylfuran, Carbon deposition, Furfural, Guaiacol, Steam reforming, 2-methylfuran, Bio oil, Carbon Formation, Model compound, Ni-based catalyst, Product distributions",
author = "Rasmus Trane-Restrup and Jensen, {Anker Degn}",
year = "2015",
doi = "10.1016/j.apcatb.2014.09.026",
language = "English",
volume = "165",
pages = "117--127",
journal = "Applied Catalysis B: Environmental",
issn = "0926-3373",
publisher = "Elsevier",

}

Steam reforming of cyclic model compounds of bio-oil over Ni-based catalysts: Product distribution and carbon formation. / Trane-Restrup, Rasmus; Jensen, Anker Degn.

In: Applied Catalysis B: Environmental, Vol. 165, 2015, p. 117-127.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Steam reforming of cyclic model compounds of bio-oil over Ni-based catalysts: Product distribution and carbon formation

AU - Trane-Restrup, Rasmus

AU - Jensen, Anker Degn

PY - 2015

Y1 - 2015

N2 - Steam reforming (SR) and oxidative steam reforming (OSR) of furfural, 2-methylfuran, and guaiacol have been investigated in the temperature range 400-800°C at a steam to carbon (S/C)-ratio of 5 and oxygen to carbon (O/C)-ratio of 0.2-1.4 over Ni/CeO2-K/MgAl2O4. Carbon oxides and H2 were the major products in the SR of 2-methylfuran and furfural, while the by-products were methane, ethanol, 2-propanol, and acetone. Temperatures of 500°C or above were needed to minimize the formation of by-products in the SR of 2-methylfuran and furfural. Phenolics, like benzenediols and phenol, were produced in high yields in the SR of guaiacol and temperatures of 780°C were needed to totally convert guaiacol to carbon oxides and H2.Carbon deposition was observed in the SR of all three model compounds and was most severe for guaiacol followed by furfural and 2-methylfuran. The carbon deposition could be reduced significantly by adding oxygen to the feed at a cost of a lower yield of H2. Stable operation was observed initially (first 4h) in the OSR of all compounds, but experiments over 24h showed signs of deactivation due to an accelerated rate of carbon deposition in the SR of furfural and guaiacol. Furthermore sintering was more severe in OSR.

AB - Steam reforming (SR) and oxidative steam reforming (OSR) of furfural, 2-methylfuran, and guaiacol have been investigated in the temperature range 400-800°C at a steam to carbon (S/C)-ratio of 5 and oxygen to carbon (O/C)-ratio of 0.2-1.4 over Ni/CeO2-K/MgAl2O4. Carbon oxides and H2 were the major products in the SR of 2-methylfuran and furfural, while the by-products were methane, ethanol, 2-propanol, and acetone. Temperatures of 500°C or above were needed to minimize the formation of by-products in the SR of 2-methylfuran and furfural. Phenolics, like benzenediols and phenol, were produced in high yields in the SR of guaiacol and temperatures of 780°C were needed to totally convert guaiacol to carbon oxides and H2.Carbon deposition was observed in the SR of all three model compounds and was most severe for guaiacol followed by furfural and 2-methylfuran. The carbon deposition could be reduced significantly by adding oxygen to the feed at a cost of a lower yield of H2. Stable operation was observed initially (first 4h) in the OSR of all compounds, but experiments over 24h showed signs of deactivation due to an accelerated rate of carbon deposition in the SR of furfural and guaiacol. Furthermore sintering was more severe in OSR.

KW - 2-Methylfuran

KW - Carbon deposition

KW - Furfural

KW - Guaiacol

KW - Steam reforming

KW - 2-methylfuran

KW - Bio oil

KW - Carbon Formation

KW - Model compound

KW - Ni-based catalyst

KW - Product distributions

U2 - 10.1016/j.apcatb.2014.09.026

DO - 10.1016/j.apcatb.2014.09.026

M3 - Journal article

VL - 165

SP - 117

EP - 127

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

SN - 0926-3373

ER -