Activity of DPU-Ni/D hydrogenation catalysts prepared by urea method
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Nickel catalysts supported on diatomite (Ni/D) were prepared by deposition-precipitation
urea (DPU) method. The precipitation of Ni(II) phase onto diatomite surface was
performed under various deposition-precipitation times. The catalyst precursors prepared
with different nickel loading were then subjected through preparation steps including
drying, reduction and passivation under the same conditions.
Characterization of textural, structural and reducible properties was carried out using
following techniques: N2-physisorption, Hg-porosimetry, XRD, IR, TG-DTG and TPR.
The activity of DPU-Ni/D catalysts was tested in the reaction of hydrogenation of soybean
oil. This reaction was performed in a three-phase slurry reactor, under conditions
described in our previous paper.
Figures 1 and 2 show the activities of the 1-U-Ni/D, 2-U-Ni/D and 3-U-Ni/D in catalytic test
reaction of soybean oil hydrogenation. For hydrogenation reaction the highest activity was
observed for the catalys...t sample 1-U-Ni/D with the lowest nickel loading. The activity of
catalyst samples increased in the following order: 1-U-Ni/D > 2-U-Ni/D > 3-U-Ni/D.
An observed trend of increasing activity with decrease of Ni loading is in good correlation
with the results obtained by the characterization of the catalyst surface and, in particular,
with reducible characteristics of prepared DPU-Ni/D catalyst samples.
Keywords:
Hydrogenation / Ni-based heterogeneous catalyst / urea method of synthesisSource:
Eight International Conference of the Chemical Societies of the South-East European Countries ICOSEC, 2013, 1, 71-Publisher:
- Serbian Chemical Society
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IHTMTY - CONF AU - Stanković, Miroslav AU - Marinković, Dalibor AU - Gabrovska, Margarita AU - Jovanović, Dušan M. PY - 2013 UR - https://www.shd.org.rs/Icosecs8/ UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2915 AB - Nickel catalysts supported on diatomite (Ni/D) were prepared by deposition-precipitation urea (DPU) method. The precipitation of Ni(II) phase onto diatomite surface was performed under various deposition-precipitation times. The catalyst precursors prepared with different nickel loading were then subjected through preparation steps including drying, reduction and passivation under the same conditions. Characterization of textural, structural and reducible properties was carried out using following techniques: N2-physisorption, Hg-porosimetry, XRD, IR, TG-DTG and TPR. The activity of DPU-Ni/D catalysts was tested in the reaction of hydrogenation of soybean oil. This reaction was performed in a three-phase slurry reactor, under conditions described in our previous paper. Figures 1 and 2 show the activities of the 1-U-Ni/D, 2-U-Ni/D and 3-U-Ni/D in catalytic test reaction of soybean oil hydrogenation. For hydrogenation reaction the highest activity was observed for the catalyst sample 1-U-Ni/D with the lowest nickel loading. The activity of catalyst samples increased in the following order: 1-U-Ni/D > 2-U-Ni/D > 3-U-Ni/D. An observed trend of increasing activity with decrease of Ni loading is in good correlation with the results obtained by the characterization of the catalyst surface and, in particular, with reducible characteristics of prepared DPU-Ni/D catalyst samples. PB - Serbian Chemical Society C3 - Eight International Conference of the Chemical Societies of the South-East European Countries ICOSEC T1 - Activity of DPU-Ni/D hydrogenation catalysts prepared by urea method VL - 1 SP - 71 UR - https://hdl.handle.net/21.15107/rcub_cer_2915 ER -
@conference{ author = "Stanković, Miroslav and Marinković, Dalibor and Gabrovska, Margarita and Jovanović, Dušan M.", year = "2013", abstract = "Nickel catalysts supported on diatomite (Ni/D) were prepared by deposition-precipitation urea (DPU) method. The precipitation of Ni(II) phase onto diatomite surface was performed under various deposition-precipitation times. The catalyst precursors prepared with different nickel loading were then subjected through preparation steps including drying, reduction and passivation under the same conditions. Characterization of textural, structural and reducible properties was carried out using following techniques: N2-physisorption, Hg-porosimetry, XRD, IR, TG-DTG and TPR. The activity of DPU-Ni/D catalysts was tested in the reaction of hydrogenation of soybean oil. This reaction was performed in a three-phase slurry reactor, under conditions described in our previous paper. Figures 1 and 2 show the activities of the 1-U-Ni/D, 2-U-Ni/D and 3-U-Ni/D in catalytic test reaction of soybean oil hydrogenation. For hydrogenation reaction the highest activity was observed for the catalyst sample 1-U-Ni/D with the lowest nickel loading. The activity of catalyst samples increased in the following order: 1-U-Ni/D > 2-U-Ni/D > 3-U-Ni/D. An observed trend of increasing activity with decrease of Ni loading is in good correlation with the results obtained by the characterization of the catalyst surface and, in particular, with reducible characteristics of prepared DPU-Ni/D catalyst samples.", publisher = "Serbian Chemical Society", journal = "Eight International Conference of the Chemical Societies of the South-East European Countries ICOSEC", title = "Activity of DPU-Ni/D hydrogenation catalysts prepared by urea method", volume = "1", pages = "71", url = "https://hdl.handle.net/21.15107/rcub_cer_2915" }
Stanković, M., Marinković, D., Gabrovska, M.,& Jovanović, D. M.. (2013). Activity of DPU-Ni/D hydrogenation catalysts prepared by urea method. in Eight International Conference of the Chemical Societies of the South-East European Countries ICOSEC Serbian Chemical Society., 1, 71. https://hdl.handle.net/21.15107/rcub_cer_2915
Stanković M, Marinković D, Gabrovska M, Jovanović DM. Activity of DPU-Ni/D hydrogenation catalysts prepared by urea method. in Eight International Conference of the Chemical Societies of the South-East European Countries ICOSEC. 2013;1:71. https://hdl.handle.net/21.15107/rcub_cer_2915 .
Stanković, Miroslav, Marinković, Dalibor, Gabrovska, Margarita, Jovanović, Dušan M., "Activity of DPU-Ni/D hydrogenation catalysts prepared by urea method" in Eight International Conference of the Chemical Societies of the South-East European Countries ICOSEC, 1 (2013):71, https://hdl.handle.net/21.15107/rcub_cer_2915 .