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Recent developments in the conversion of synthesis gas to short-chain alcohols over Cu-Co-based catalysts

: Schmidt, Stefan; Göbel, Christoph; Nebel, Janine; Wiesmann, Thomas; Hamel, Christian; Reinsdorf, Arne; Wolf, Dorit; Gehrmann, Stefan; Tenhumberg, Nils; Muhler, Martin; Kaluza, Stefan


Chemie- Ingenieur- Technik 90 (2018), No.10, pp.1465-1475
ISSN: 0009-286X
ISSN: 1522-2640
Journal Article
Fraunhofer UMSICHT Oberhausen ()
cobalt carbide; copper-cobalt catalysts; dual site; Higher alcohol synthesis

Cu-Co-based catalysts provide promising systems for higher alcohol synthesis (HAS) due to a synergistic dual-site mechanism. Bimetallic Cu-Co (alloy) nanoparticles are assumed to be the active sites, but cobalt carbide (Co2C) forming under reaction conditions also seems to influence the formation of C2+OH. Na-doped Co-modified Cu/ZnO/Al2O3 is applied asb enchmark catalyst within the Carbon2Chem subproject L4 providing suitable performance in terms of CO conversion and C2+OH selectivity. However, further optimization is required in order to develop an economically viable HAS process.