prikaz prve stranice dokumenta Utjecaj nagiba lopatica PBT miješala na ionsku izmjenu
  Download
PDF 2.88 MB
undergraduate thesis
Utjecaj nagiba lopatica PBT miješala na ionsku izmjenu
završni rad
Split: University of Split, Faculty of Chemistry and Technology, 2018. urn:nbn:hr:167:151338
Marinov, Anamarija
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Institutional repository: Repository of the Faculty of chemistry and technology

Cite this document

Marinov, A. (2018). Utjecaj nagiba lopatica PBT miješala na ionsku izmjenu : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:151338

Marinov, Anamarija. "Utjecaj nagiba lopatica PBT miješala na ionsku izmjenu : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:167:151338

Marinov, Anamarija. "Utjecaj nagiba lopatica PBT miješala na ionsku izmjenu : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:167:151338

Marinov, A. (2018). 'Utjecaj nagiba lopatica PBT miješala na ionsku izmjenu : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 04 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:151338

Marinov A. Utjecaj nagiba lopatica PBT miješala na ionsku izmjenu : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2018 [cited 2024 November 04] Available at: https://urn.nsk.hr/urn:nbn:hr:167:151338

A. Marinov, "Utjecaj nagiba lopatica PBT miješala na ionsku izmjenu : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:167:151338

Metadata
TitleUtjecaj nagiba lopatica PBT miješala na ionsku izmjenu : završni rad
Title (english)Effect of blade angle of PBT impeller on the ion exchange : bachelor thesis
AuthorAnamarija Marinov
MentorSandra Svilović (mentor)
Committee memberMarija Ćosić (predsjednik povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2018-07-20, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U prvom dijelu ovog rada ispitan je utjecaj nagiba lopatica PBT miješala na postizanje stanje potpune suspenzije zeolita 13X. Na osnovu rezultata utvrđeno je da se povećanjem nagiba lopatica PBT miješala, sa 30° na 70° smanjuje kritična brzina vrtnje miješala N JS kao i vrijednost zakretnog momenta. Vrijednosti zakretnog momenta direktna su posljedica kritične brzine vrtnje miješala, N JS . Osim toga u ovom radu se primjenom Taguchijeve metode ispitao utjecaj temperature suspenzije, nagiba lopatica miješala, veličine čestica zeolita i brzine okretaja miješala na ionsku izmjenu bakra na zeolitu 13X. Zadatak rada je bio pronaći optimalne vrijednosti ispitivanih procesnih varijabli, korištenjem Taguchijeve metode, pri kojima se vezalo najviše bakra na zeolit. Količina bakra se računala iz razlike početnih i konačnih koncentracija bakrovih iona u suspenziji. Konačne koncentracije bakrovih iona su određene spektrofotometrom. Taguchijevom metodom utvrđen je utjecaj ispitivanih procesnih varijabli na proces. Naime, rezultati su pokazali da se najveća količina bakra veže na zeolit pri najvećoj ispitivanoj temperaturi (33°C), te pri najvećem ispitivanom nagibu lopatica (70°). Utjecaj veličine čestica i brzine vrtnje miješala na proces je zanemariv budući da se kod korištenih veličina čestica može zanemariti utjecaj unutarfazne difuzije, a brzina miješanja je dovoljno velika da se može zanemariti utjecaj međufazne difuzije. Nakon izračuna optimalnih vrijednosti ispitivanih procesnih varijabli, provedena su kinetička ispitivanja te su dobiveni eksperimentalni podaci uspoređeni s Ritchievim kinetičkim modelom s obzirom da se isti koristi za modeliranje izmjene bakra na zeolitu.
Abstract (english)
In the first part of this paper, the effect of blade angle of PBT impeller on the state of complete suspension of zeolite 13X was examined. It is evident that by increasing the angle of the PBT impeller, from 30° to 70°, the impeller speed decrease as well as the torque value. Torque values are directly related to the critical impeller speed, N JS . Other than that, in this paper, the effect of the suspension temperature, blade angle of PBT impeller, zeolite particle size and impeller speed on copper exchange on zeolite 13X was studied using Taguchi method. The aim of this part of the work was to find the optimal value of process parameters studied for which the maximum amount of copper on the zeolite 13X was exchanged. The amount of copper is calculated from the difference between the initial and final concentrations of the copper ions in the suspension. The final concentrations of the copper ions are determined by the spectrophotometer. Using the Taguchi method the effects of process parameters on the process was found. Namely, the results show that the maximum amount of copper exchange on zeolite at the highest temperature (33°C), and the highest blade angle (70°) investigated. The influence of particle size and impeller speed is negligible in the process because the particles are small enough to avoid the effect of the intraparticle diffusion and the impeller speed is large enough to avoid the effect the film diffusion. After the calculation of optimal value of process conditions studied, kinetic studies were performed as well and the experimental data obtained were compared with the Ritchi kinetic model.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:151338
ProjectNumber: IP-2013-11-8959
Title: Utjecaj procesnih parametara na kinetiku heterogenih sustava koji se odvijaju u šaržnom reaktoru s miješanjem
Acronym: HETMIX
Leader: Nenad Kuzmanić
Jurisdiction: Croatia
Funder: MZOS
Study programmeTitle: Chemical Technology; specializations in: Chemical Engineering, Environmental Protection
Course: Chemical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Study programmeTitle: Chemical Technology; specializations in: Chemical Engineering, Environmental Protection
Course: Chemical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2020-07-20
Terms of useLicence In copyright icon
Public noteKljučne riječi doradio knjižničar/ Key words are revised by the librarian
Created on2018-09-17 11:43:01