A1 Refereed original research article in a scientific journal
Influence of Cu:Fe ratio in synthesis of higher alcohols from syngas over CuFeCoK/attapulgite catalysts
Authors: Aho, Atte; Lind, Noora; Virtanen, Pasi; Mäki-Arvela, Päivi; Eränen, Kari; Granroth, Sari; Korpelin, Ville; Honkala, Karoliina; Russo, Vincenzo; Simakova, Irina; Murzin, Dmitry Yu.
Publisher: Elsevier
Publication year: 2024
Journal: Applied Catalysis O: Open
Journal name in source: Applied Catalysis O: Open
Article number: 206972
Volume: 193
ISSN: 2950-6492
eISSN: 2950-6484
DOI: https://doi.org/10.1016/j.apcato.2024.206972
Web address : https://doi.org/10.1016/j.apcato.2024.206972
Self-archived copy’s web address: https://research.utu.fi/converis/portal/detail/Publication/457114949
Synthesis of higher alcohols from syngas (H2:CO ratio 2 and 1) was performed at 225–300 °C and 30 bar over copper, iron and cobalt containing catalysts supported on attapulgite and promoted with potassium. The Cu:Fe ratio was varied to study its influence on the syngas conversion and product distribution. It was found that while the copper rich catalyst 17Cu3FeCoK/attapulgite resulted in higher selectivity to the undesired alkanes with methane as the major one, the iron rich 3Cu17FeCoK/attapulgite was more selective towards alkenes. Selectivity to CO2 was independent on the Cu:Fe ratio tested in this work. With the higher H2:CO ratio (i.e. 2) selectivity to the liquid products increased with the increasing iron content. Moreover, a higher iron content in the catalyst improved formation of higher alcohols while the α-value reflecting the chain growth probability was more or less independent on the catalyst type.
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Funding information in the publication:
Funding from Business Finland through the SynJet project is greatly acknowledged.
