Razvoj i primjena višefaznih monolitnih reaktora

undergraduate thesis

• Title (english): Development and application of the multiphase monolithic reactors
• Author: Sara Užar
• Mentor: Vesna Tomašić (mentor)
• Committee member: Vesna Tomašić (predsjednik povjerenstva)
• Committee member: Vanja Kosar (član povjerenstva)
• Committee member: Emi Govorčin Bajsić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2016-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering; Reaction Engineering

Abstract

Cilj ovog rada bio je razvoj i primjena metalnog monolitnog katalizatora/reaktora za katalitičku oksidaciju VOC- a, uz primjenu toluena kao karakterističnog predstavnika navedene skupine spojeva koji se ispuštaju u okoliš iz različitih segmenata kemijske procesne industrije. Rad uključuje izučavanje katalitičke oksidacije toluena na različitim izvedbama katalizatora s obzirom na kemijski sastav i osnovnu strukturu. Katalitička oksidacija toluena provedena je u cijevnom reaktoru s nepokretnim slojem katalizatora te u monolitnom reaktoru. Za provedbu oksidacije toluena korištena su dva katalizatora u praškastom obliku, tj. miješani oksid mangana i željeza (MnFeOx) i perovskitni katalizator (MnLaO3). Pritom je MnFeOx katalizator koji se pokazao učinkovitijim i boljim korišten za pripremu tankog katalitičkog sloja nanesenog na inertnu monolitnu strukturu (Mn-FeOx/Al-Al2O3). Istraživanja su provedena pri različitim temperaturama i vremenima zadržavanja reakcijske smjese u reaktoru te uz konstantnu početnu koncentraciju toluena i masu katalizatora.

Abstract (english)

The aim of this work was the development and application of a metal monolith catalyst/reactor for the catalytic oxidation of VOCs. Toluene was used as representative of VOCs that are released into the environment from various segments of the chemical process industry. This work includes study of the catalytic oxidation of toluene at different catalyst with regard to their chemical composition and the basic structure. The catalytic oxidation of toluene was carried out in the fixed bed tubular reactor and in the monolithic reactor. Two types of catalysts in the powder form were used to performe reaction, mixed oxide of manganese and iron (MnFeOx) and perovskite catalyst (MnLaO3). The MnFeOx catalyst that has proven to be more efficient and better was used for the preparation of thin catalytic layer deposited on the surface of inert monolithic structure (Mn-FeOx/Al-Al2O3). Investigations were carried out at different temperatures and residence times of the reaction mixture inside the reactor and at the constant toluene concentrations and the catalyst weight.

• Keywords: monolitni reaktor; VOC; katalitička oksidacija toluena; miješani metalni oksidi
• Keywords (english): monolithic reactor; VOC; catalytic oxidation of toluene; mixed metal oxides
• Language: croatian
• URN:NBN: urn:nbn:hr:149:197809
• Study programme: Title: Chemical Engineering - Undergraduate study; 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 resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2018-02-13 09:55:49