Aqueous-phase reforming of bio-oil aqueous fraction over nickel-based catalysts

Aitor Arandia (Corresponding Author), Irene Coronado, Aingeru Remiro, Ana G. Gayubo, Matti Reinikainen

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

Aqueous-phase reforming (APR) is a quite new technology for the production of hydrogen and light hydrocarbons from aqueous-organic mixtures in a single-stage process. This manuscript analyzes the APR of representative model compounds of bio-oil aqueous fraction, including acetic acid, ethanol, 1-hydroxypropan-2-one (acetol) and benzene-1,2-diol (catechol), as well as a mixture of all of them. The APR experiments were conducted at 230 °C and 3.2 MPa over three different Ni-based catalysts, including spinel NiAl 2 O 4 , and supported Ni/CeO 2 -γAl 2 O 3 and Ni/La 2 O 3 -αAl 2 O 3 . The reactivity of the model compounds varied largely in the order: acetol > ethanol > catechol > acetic acid, whereas the H 2 production decreased in the following order: ethanol ≫> acetol > acetic acid > catechol. Based on the product distribution obtained, the reaction pathways in the APR of each model compound have been proposed. In the APR of the mixture, the Ni/La 2 O 3 -αAl 2 O 3 led to the highest H 2 yield but was affected by Ni leaching, whereas spinel NiAl 2 O 4 showed a much higher stability. Therefore, the Ni-spinel catalyst showed a good potential for H 2 production by APR of bio-oil aqueous fraction.

Original languageEnglish
Pages (from-to)13157-13168
Number of pages12
JournalInternational Journal of Hydrogen Energy
Volume44
Issue number26
Early online date25 Apr 2019
DOIs
Publication statusPublished - 21 May 2019
MoE publication typeA1 Journal article-refereed

Fingerprint

Reforming reactions
acetic acid
spinel
ethyl alcohol
oils
Nickel
nickel
catalysts
Catalysts
Acetic acid
Ethanol
leaching
reactivity
hydrocarbons
benzene
hydrogen
products
Leaching
Oils
Benzene

Keywords

  • Aqueous-phase reforming
  • Bio-oil
  • Hydrogen
  • Ni-based catalysts

Cite this

@article{21ec17e0e0a244109869be9c5a94c36d,
title = "Aqueous-phase reforming of bio-oil aqueous fraction over nickel-based catalysts",
abstract = "Aqueous-phase reforming (APR) is a quite new technology for the production of hydrogen and light hydrocarbons from aqueous-organic mixtures in a single-stage process. This manuscript analyzes the APR of representative model compounds of bio-oil aqueous fraction, including acetic acid, ethanol, 1-hydroxypropan-2-one (acetol) and benzene-1,2-diol (catechol), as well as a mixture of all of them. The APR experiments were conducted at 230 °C and 3.2 MPa over three different Ni-based catalysts, including spinel NiAl 2 O 4 , and supported Ni/CeO 2 -γAl 2 O 3 and Ni/La 2 O 3 -αAl 2 O 3 . The reactivity of the model compounds varied largely in the order: acetol > ethanol > catechol > acetic acid, whereas the H 2 production decreased in the following order: ethanol ≫> acetol > acetic acid > catechol. Based on the product distribution obtained, the reaction pathways in the APR of each model compound have been proposed. In the APR of the mixture, the Ni/La 2 O 3 -αAl 2 O 3 led to the highest H 2 yield but was affected by Ni leaching, whereas spinel NiAl 2 O 4 showed a much higher stability. Therefore, the Ni-spinel catalyst showed a good potential for H 2 production by APR of bio-oil aqueous fraction.",
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Aqueous-phase reforming of bio-oil aqueous fraction over nickel-based catalysts. / Arandia, Aitor (Corresponding Author); Coronado, Irene; Remiro, Aingeru; Gayubo, Ana G.; Reinikainen, Matti.

In: International Journal of Hydrogen Energy, Vol. 44, No. 26, 21.05.2019, p. 13157-13168.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Aqueous-phase reforming of bio-oil aqueous fraction over nickel-based catalysts

AU - Arandia, Aitor

AU - Coronado, Irene

AU - Remiro, Aingeru

AU - Gayubo, Ana G.

AU - Reinikainen, Matti

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AB - Aqueous-phase reforming (APR) is a quite new technology for the production of hydrogen and light hydrocarbons from aqueous-organic mixtures in a single-stage process. This manuscript analyzes the APR of representative model compounds of bio-oil aqueous fraction, including acetic acid, ethanol, 1-hydroxypropan-2-one (acetol) and benzene-1,2-diol (catechol), as well as a mixture of all of them. The APR experiments were conducted at 230 °C and 3.2 MPa over three different Ni-based catalysts, including spinel NiAl 2 O 4 , and supported Ni/CeO 2 -γAl 2 O 3 and Ni/La 2 O 3 -αAl 2 O 3 . The reactivity of the model compounds varied largely in the order: acetol > ethanol > catechol > acetic acid, whereas the H 2 production decreased in the following order: ethanol ≫> acetol > acetic acid > catechol. Based on the product distribution obtained, the reaction pathways in the APR of each model compound have been proposed. In the APR of the mixture, the Ni/La 2 O 3 -αAl 2 O 3 led to the highest H 2 yield but was affected by Ni leaching, whereas spinel NiAl 2 O 4 showed a much higher stability. Therefore, the Ni-spinel catalyst showed a good potential for H 2 production by APR of bio-oil aqueous fraction.

KW - Aqueous-phase reforming

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