The activity of fused-iron catalyst doped with lithium oxide for ammonia synthesis

• Autorzy: Jedrzejewski R. , Lendzion-Bieluń Z. , Arabczyk W.

Identyfikatory

DOI

10.1515/pjct-2016-0032

• Języki publikacji: EN

Abstrakty

EN

The iron catalyst precursor promoted with Al2O3, CaO, and Li2O was obtained applying the fusing method. Lithium oxide forms two phases in this iron catalyst: a chemical compound with iron oxide (Li2Fe3O4) and a solid solution with magnetite. The catalyst promoted with lithium oxide was not fully reduced at 773 K, while the catalyst containing potassium was easily reducible at the same conditions. After reduction at 873 K the activity of the catalyst promoted with lithium oxide was 41% higher per surface than the activity of the catalyst promoted with potassium oxide. The concentration of free active sites on the surface of the catalyst containing lithium oxide after full reduction was greater than the concentration of free active sites on the surface of the catalyst promoted with potassium oxide.

Słowa kluczowe

EN

iron catalyst; ammonia synthesis; lithium oxide

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2016
• Tom: Vol. 18, nr 2
• Strony: 78--83
• Opis fizyczny: Bibliogr. 27 poz., rys., tab.

Twórcy

autor

Jedrzejewski R.

• West Pomeranian University of Technology, Szczecin, Institute of Materials Science and Engineering, Piastów 19, 70-310 Szczecin, Poland

autor

Lendzion-Bieluń Z.

• West Pomeranian University of Technology, Szczecin, Institute of Inorganic Chemical Technology and Environmental Engineering, Pułaskiego 10, 70-322 Szczecin, Poland

autor

Arabczyk W.

• West Pomeranian University of Technology, Szczecin, Institute of Inorganic Chemical Technology and Environmental Engineering, Pułaskiego 10, 70-322 Szczecin, Poland

Bibliografia

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.