Izrada strukturiranih monolitnih nosača katalizatora primjenom tehnologije proizvodnje rastaljenim filamentom

undergraduate thesis

• Title (english): Preparation of structured monolithic catalyst supports using fused filament fabrication
• Author: Dominik Drašković
• Mentor: Vesna Tomašić (mentor)
• Committee member: Vesna Tomašić (predsjednik povjerenstva)
• Committee member: Filip Car (član povjerenstva)
• Committee member: Domagoj Vrsaljko (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2023-09-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

Značajniji razvoj tehnologije aditivne proizvodnje u posljednjem desetljeću i njegova primjena bitni su čimbenici kako u katalizi, koja predstavlja jednog od nositelja kemijske industrije, tako i nove industrijske revolucije, koja se još naziva i Industrija 4.0. Razvoj aditivne proizvodnje bio je moguć zahvaljujući digitalnoj revoluciji čije se metode zasnivaju na brzom i učinkovitom prijelazu između digitalnog modela i njegove fizičke realizacije, za razliku od prethodnih, tradicionalnih metoda koje se temelje na unaprijed određenim kalupima i ograničavaju se na proizvodnju identičnih proizvoda dok digitalne metode pružaju puno veću fleksibilnost. Tehnologija aditivne proizvodnje primjenu pronalazi u kemijskom inženjerstvu i u području katalitičkog reakcijskog inženjerstva u vidu intenzifikacije procesa te se koristi i za razvoj strukturiranih katalizatora. Jedna od tehnologija aditivne proizvodnje, koja se koristi za izradu i razvoj složenih monolitnih katalizatora, jest tehnologija proizvodnje rastaljenim filamentom (engl. fused filament fabrication, FFF). U teorijskom dijelu ovog rada dan je uvid u primjenu intenzifikacije procesa u kemijskom inženjerstvu te je detaljnije opisana aditivna tehnologija i njezina primjena s naglaskom na primjenu tehnologije proizvodnje rastaljenim filamentom u katalizi za izradu složenih monolitnih katalizatora/reaktora. Tehnika FFF ima mnogobrojne prednosti, a najviše se očituju u mogućnosti izrade proizvoda koje nije moguće dobiti primjenom tradicionalnih tehnika. Istraživanja su pokazala da tehnika FFF ima određene nedostatke poput vidljivih linija između slojeva, tzv. „efekt stepenica“ (engl. staircase effect)potrebu za naknadnom obradom što uključuje i uklanjanje potporne strukture, relativno visoku hrapavost površine i dr. Daljnjim razvojem kompozitnih materijala/filamenata koji u sebi sadrže termoplastične materijale poput polietilena, polistirena, alifatskih poliamida i sl., vjerojatno će dovesti do kompenzacije nekih od postojećih problema te omogućiti bolju učinkovitost primjene tehnologije aditivne proizvodnje u području katalitičkog reakcijskog inženjerstva.

Abstract (english)

The more significant development of additive manufacturing technology in the last decade and its application are important factors both in catalysis, which represents one of the carriers of the chemical industry, and in the new industrial revolution, which is also called Industry 4.0. The development of additive manufacturing was possible thanks to the digital revolution, whose methods are based on a quick and efficient transition between the digital model and its physical realization, in contrast to previous, traditional methods that are based on predetermined molds and are limited to the production of identical products, while digital methods provide much greater flexibility. Additive manufacturing technology finds application in chemical engineering and in the field of catalytic reaction engineering in the form of process intensification and for the development of structured catalysts. One of the technologies of additive manufacturing, which is used for the creation and development of complex monolithic catalysts, is the technology of fused filament fabrication (FFF).In the theoretical part of this work, an insight into the application of process intensification in chemical engineering is given and additive technology and its application are described in more detail, as well as the application of fused filament fabrication technology in catalysis for the production of complex monolithic catalysts/reactors. The FFF technique has numerous advantages, most of which are manifested in the possibility of manufacturing products that cannot be obtained using traditional techniques. Research has shown that the FFF technique has certain disadvantages, such as staircase effect, the need for subsequent processing including removal of the supporting structure, high surface roughness, etc. Further development of composite materials/filaments that contain thermoplastic materials such as polyethylene, polystyrene, aliphatic polyamides, etc., will probably lead to the compensation of some of the existing problems and enable better efficiency of the application of additive manufacturing technology in the field of catalytic reaction engineering.

• Keywords: aditivna proizvodnja; filament; monolitni katalizator/reaktor; proizvodnja rastaljenim filamentom (FFF)
• Keywords (english): additive manufacturing; filament; monolithic catalysts/reactors; fused filament fabrication (FFF)
• Language: croatian
• URN:NBN: urn:nbn:hr:149:873484
• 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: 2023-11-30 13:05:17