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Pregled bibliografske jedinice broj: 45692

The Influence of Thermal Treatment on the Performance of Ni/Al_2O_3 Catalyst


Tomašić, Vesna; Geržina, Anica; Zrnčević, Stanka
The Influence of Thermal Treatment on the Performance of Ni/Al_2O_3 Catalyst // Chemical and Biochemical Engineering Quarterly, 14 (2000), 2; 47-52 (međunarodna recenzija, članak, znanstveni)


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Naslov
The Influence of Thermal Treatment on the Performance of Ni/Al_2O_3 Catalyst
(The Influence of Thermal Treatment on the Performamce of Ni/Al_2O_3 Catalyst)

Autori
Tomašić, Vesna ; Geržina, Anica ; Zrnčević, Stanka

Izvornik
Chemical and Biochemical Engineering Quarterly (0352-9568) 14 (2000), 2; 47-52

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Thermal treatment (calcination); thioresistance of Ni/Al_2O_3 catalyst; calcination; benzene hydrogenation; kinetics of dectivation
(Thermal treatment (calcination); thioresistance of Ni/Al_2O_3 catalyst; calcination; benzene hydrogenation; kinetics of deactivation)

Sažetak
The data showing the influence of calcination conditions on physical and catalitic properties of Ni/Al_2O_3 catalyst, are presented and discussed. The catalst characterization was performed by X-ray diffraction analysis and adsorption of nitrogen at 77 K. Activity of the Ni/Al_2O_3 catalyst was tested using benzene hydrogenation in the presence of thiophene as poisoning molecule. It has been found that the calcination temperature directly influenced physico-chemical properties resposible for thioresistance of NiAl_2O_3 catalyst, whereas calcination time had little effect on the catalytic properties of catalyst. The crystallite size of NiO and of the support particles incresed with the elevation of calcination temperature from 573 to 873 K, while the surface area of the catalyst decreased. Benzene conversion was higher, and the catalyst deactivation due to thiophene poisoning, was slower, when the crystallites were smaller. That indicated, that both reaction, i.e. benzene hydrogenation and catalyst poisoning by thiophene, were structure-sensitive and that calcination at 873 K probably led to modofication of electronic properties of the catalytic active sites. At the same time, higher resiatance to thiophene poisoning may prolong the catalyst lifetime.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo



POVEZANOST RADA


Projekti:
125001

Ustanove:
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Profili:

Avatar Url Vesna Tomašić (autor)

Avatar Url Anica Geržina (autor)

Avatar Url Stanka Zrnčević (autor)


Citiraj ovu publikaciju:

Tomašić, Vesna; Geržina, Anica; Zrnčević, Stanka
The Influence of Thermal Treatment on the Performance of Ni/Al_2O_3 Catalyst // Chemical and Biochemical Engineering Quarterly, 14 (2000), 2; 47-52 (međunarodna recenzija, članak, znanstveni)
Tomašić, V., Geržina, A. & Zrnčević, S. (2000) The Influence of Thermal Treatment on the Performance of Ni/Al_2O_3 Catalyst. Chemical and Biochemical Engineering Quarterly, 14 (2), 47-52.
@article{article, year = {2000}, pages = {47-52}, keywords = {Thermal treatment (calcination), thioresistance of Ni/Al\_2O\_3 catalyst, calcination, benzene hydrogenation, kinetics of dectivation}, journal = {Chemical and Biochemical Engineering Quarterly}, volume = {14}, number = {2}, issn = {0352-9568}, title = {The Influence of Thermal Treatment on the Performance of Ni/Al\_2O\_3 Catalyst}, keyword = {Thermal treatment (calcination), thioresistance of Ni/Al\_2O\_3 catalyst, calcination, benzene hydrogenation, kinetics of dectivation} }
@article{article, year = {2000}, pages = {47-52}, keywords = {Thermal treatment (calcination), thioresistance of Ni/Al\_2O\_3 catalyst, calcination, benzene hydrogenation, kinetics of deactivation}, journal = {Chemical and Biochemical Engineering Quarterly}, volume = {14}, number = {2}, issn = {0352-9568}, title = {The Influence of Thermal Treatment on the Performamce of Ni/Al\_2O\_3 Catalyst}, keyword = {Thermal treatment (calcination), thioresistance of Ni/Al\_2O\_3 catalyst, calcination, benzene hydrogenation, kinetics of deactivation} }

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka::


  • Science Citation Index Expanded
  • ISI Master Journal List
  • SCI Expanded





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