Naslov
Application of the Yoon-Nelson model and the reactor theory for packed beds on zinc uptake on clinoptilolite

Autori
Slavić, Gabrijela ; Trgo, Marina ; Rušić, Davor ; Perić, Jelena ; Vukojević Medvidović, Nediljka

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings 3rd Slovenian-Croatian Symposium on Zeolites / Tatjana Antonić Jelić ; Nataša Zabukovec Logar - Zagreb : Hrvatska zeolitna udruga (HZU), 2010, 85-88

ISBN
978-953-55373-2-8

Skup
3rd Slovenian-Croatian Symposium on Zeolites

Mjesto i datum
Trogir, Hrvatska, 16.09.2010. - 17.09.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
zeolite ; zinc ; Yoon-Nelson model ; reactor theory for packed beds

Sažetak
The column method of zinc removal onto the 80 mm fixed bed depth of natural zeolite has been used. The experimental results for the breakthrough curve have been fitted to the Yoon-Nelson empirical kinetic model and excellent agreement has been observed. The modelled curve has been derived in order to define the mass transfer mechanism using the reactor theory for packed beds. It can be observed that up to the inflection point on the breakthrough curve the mass transfer through the aqueous phase governs the rate, while after the inflection point the diffusion through particles governs the overall rate. The time corresponding to the inflection increases proportionaly with the increase of bed depth. The change of bed depth does not affect the mass transfer mechanism through the bed. The results are compared with results for the system at the 40 mm zeolite bed depth.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo

POVEZANOST RADA