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

41 Citations (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 NiAl2O4 , and supported Ni/CeO2-γAl2O3 and Ni/La2O3-αAl2O3 . The reactivity of the model compounds varied largely in the order: acetol > ethanol > catechol > acetic acid, whereas the H2 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/La2O3-αAl2O3 led to the highest H2 yield but was affected by Ni leaching, whereas spinel NiAl2O4 showed a much higher stability. Therefore, the Ni-spinel catalyst showed a good potential for H2 production by APR of bio-oil aqueous fraction.

Original languageEnglish
Pages (from-to)13157-13168
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

Funding

This work was carried out with the financial support of the Academy of Finland (AQUACAT Project no. 285398), the Department of Education of the Basque Government (IT748-13), the Ministry of Economy and Competitiveness of the Spanish Government jointly with the European Regional Development Funds ( AEI/FEDER, UE ) (Project CTQ2015-68883-R and Ph.D. grant BES-2013-063639 for A. Arandia).

Keywords

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

Fingerprint

Dive into the research topics of 'Aqueous-phase reforming of bio-oil aqueous fraction over nickel-based catalysts'. Together they form a unique fingerprint.

Cite this