• Medientyp: E-Artikel
  • Titel: Effect of Constant‐Rate Reduction on the Performance of a Ternary Cu/ZnO/Al2O3 Catalyst in Methanol Synthesis
  • Beteiligte: Ruland, Holger; Busser, Wilma; Otto, Horst; Muhler, Martin
  • Erschienen: Wiley, 2014
  • Erschienen in: Chemie Ingenieur Technik
  • Umfang: 1890-1893
  • Sprache: Englisch
  • DOI: 10.1002/cite.201400065
  • ISSN: 0009-286X; 1522-2640
  • Schlagwörter: Industrial and Manufacturing Engineering ; General Chemical Engineering ; General Chemistry
  • Zusammenfassung: <jats:title>Abstract</jats:title><jats:p>A multi‐functional flow set‐up was developed for the rate‐ and temperature‐controlled reduction of copper catalysts, their application in high‐pressure methanol synthesis and the determination of the copper surface area by N<jats:sub>2</jats:sub>O frontal chromatography. The influence of constant‐rate reduction on the catalytic properties of a ternary Cu/ZnO/Al<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> catalyst was investigated. The temperature during the constant‐rate reduction was found to decrease, indicating autocatalytic kinetics, but no significant catalytic effect of the milder reduction conditions was observed compared with a slow linear heating ramp.</jats:p>
  • Beschreibung: <jats:title>Abstract</jats:title><jats:p>A multi‐functional flow set‐up was developed for the rate‐ and temperature‐controlled reduction of copper catalysts, their application in high‐pressure methanol synthesis and the determination of the copper surface area by N<jats:sub>2</jats:sub>O frontal chromatography. The influence of constant‐rate reduction on the catalytic properties of a ternary Cu/ZnO/Al<jats:sub>2</jats:sub>O<jats:sub>3</jats:sub> catalyst was investigated. The temperature during the constant‐rate reduction was found to decrease, indicating autocatalytic kinetics, but no significant catalytic effect of the milder reduction conditions was observed compared with a slow linear heating ramp.</jats:p>
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