Aqueous-phase reforming of Fischer-Tropsch alcohols over nickel-based catalysts to produce hydrogen

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en Coronado, Irene Pitínová, Martina Karinen, Reetta Reinikainen, Matti Puurunen, Riikka L. Lehtonen, Juha 2018-10-16T08:54:45Z 2018-10-16T08:54:45Z 2018-10-25
dc.identifier.citation Coronado , I , Pitínová , M , Karinen , R , Reinikainen , M , Puurunen , R L & Lehtonen , J 2018 , ' Aqueous-phase reforming of Fischer-Tropsch alcohols over nickel-based catalysts to produce hydrogen : Product distribution and reaction pathways ' Applied Catalysis A: General , vol 567 , pp. 112-121 . DOI: 10.1016/j.apcata.2018.09.013 en
dc.identifier.issn 0926-860X
dc.identifier.other PURE UUID: 68d6ddf1-318a-4fd3-ae39-cf126abae43b
dc.identifier.other PURE ITEMURL:
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dc.description.abstract Catalytic aqueous-phase reforming (APR) can be applied to process the organic compounds in the water fractions derived from the Fischer-Tropsch (FT) synthesis. This work aimed at finding an active nickel-based catalyst to convert organic compounds typically found in FT-derived waters, such as alcohols, into hydrogen. In addition, this work aimed at proposing potential reaction pathways that explain the product distribution resulting from the APR of C1–C3 alcohols. Solutions with 5% mass fraction of either methanol, ethanol, propan-1-ol or propan-2-ol in water were processed in APR at 230 °C and 3.2 MPa over different nickel-based catalysts in a continuous packed-bed reactor. Methanol was successfully reformed into hydrogen and carbon monoxide with conversions up to 60%. The conversion of C2–C3 alcohols achieved values in the range of 12% to 55%. The results obtained in the APR of C2–C3 alcohols suggest that in addition to reforming to hydrogen and carbon monoxide, the alcohols underwent dehydrogenation and decarbonylation. The most stable catalyst, nickel-copper supported on ceria-zirconia, reached feedstock conversions between 20% and 60% and high hydrogen selectivity. Monometallic nickel supported on ceria-zirconia catalysts reached higher H2 yields; however, the yield of side products, such as alkanes, was also higher over the monometallic catalysts. Accordingly, ceria-zirconia nickel-based supported catalysts constitute suitable candidates to process the alcohols in the water fractions derived from the FT synthesis. en
dc.format.extent 10
dc.format.extent 112-121
dc.format.mimetype application/pdf
dc.language.iso en en
dc.relation.ispartofseries Applied Catalysis A: General en
dc.relation.ispartofseries Volume 567 en
dc.rights openAccess en
dc.subject.other Catalysis en
dc.subject.other Process Chemistry and Technology en
dc.subject.other 215 Chemical engineering en
dc.title Aqueous-phase reforming of Fischer-Tropsch alcohols over nickel-based catalysts to produce hydrogen en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department VTT Technical Research Centre of Finland
dc.contributor.department Department of Chemical and Metallurgical Engineering
dc.contributor.department Department of Biotechnology and Chemical Technology
dc.subject.keyword Alcohols
dc.subject.keyword Aqueous-phase reforming
dc.subject.keyword Fischer-Tropsch water fraction
dc.subject.keyword Hydrogen
dc.subject.keyword Nickel-based catalysts
dc.subject.keyword Catalysis
dc.subject.keyword Process Chemistry and Technology
dc.subject.keyword 215 Chemical engineering
dc.identifier.urn URN:NBN:fi:aalto-201810165360
dc.identifier.doi 10.1016/j.apcata.2018.09.013
dc.type.version publishedVersion

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