Journals Information
Universal Journal of Chemistry(CEASE PUBLICATION) Vol. 5(1), pp. 19 - 28
DOI: 10.13189/ujc.2017.050103
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Egg-shell Ni/Al2O3 Catalyst for the Hydrogenation of Mixed C5 Alkenes
Ji艡铆 Kolena *, Gabriela 艩钮谩vov谩 , Pavel Mor谩vek , Kamil 艩t臎p谩nek
Unipetrol, Center for Research and Education (UNICRE), Czech Republic
ABSTRACT
A process of Ni/Al2O3 eggshell type catalyst preparation has been developed in laboratory scale. Active catalysts with high Ni content, in which the active metal is concentrated in a very thin layer below the particle surface, were prepared by this process. Wet impregnation of carrier particles with a solution of inorganic Ni salt in organic solvent, in particular ethanol and acetone, was the basic principle of the preparation method. Catalysts with a maximum Ni content of 20.9 mass %, concentrated into a layer of thickness of 770 渭m were prepared when ethanol was used as the solvent, while 15.4 % Ni maximum concentration and 622 渭m layer thickness were achieved when acetone was used as the solvent. The catalysts prepared were characterized by following analytical methods: XRD, BET, Raman spectroscopy and EDS. The catalysts activities were tested in the gas phase C5 olefins hydrogenation. Despite the lower Ni content, the catalyst impregnated by Ni nitrate, dissolved in acetone was characterized by higher activity in comparison with the catalyst impregnated by ethanol solution.
KEYWORDS
Catalyst, Nickel, Eggshell, Hydrogenation, Alumina, Impregnation
Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Ji艡铆 Kolena , Gabriela 艩钮谩vov谩 , Pavel Mor谩vek , Kamil 艩t臎p谩nek , "Egg-shell Ni/Al2O3 Catalyst for the Hydrogenation of Mixed C5 Alkenes," Universal Journal of Chemistry(CEASE PUBLICATION), Vol. 5, No. 1, pp. 19 - 28, 2017. DOI: 10.13189/ujc.2017.050103.
(b). APA Format:
Ji艡铆 Kolena , Gabriela 艩钮谩vov谩 , Pavel Mor谩vek , Kamil 艩t臎p谩nek (2017). Egg-shell Ni/Al2O3 Catalyst for the Hydrogenation of Mixed C5 Alkenes. Universal Journal of Chemistry(CEASE PUBLICATION), 5(1), 19 - 28. DOI: 10.13189/ujc.2017.050103.