Usporedba mili i mikroreaktora

undergraduate thesis

• Title (english): Comparison of mili and microreactors
• Author: Valentina Dragčević
• Mentor: Domagoj Vrsaljko (mentor)
• Committee member: Domagoj Vrsaljko (predsjednik povjerenstva)
• Committee member: Zana Hajdari Gretić (član povjerenstva)
• Committee member: Anita Šalić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2016-09-20, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Interdisciplinary Technical Sciences; Micro and Nano Technologies

Abstract

Mikrostrukturirani reaktori su reaktori koji, za razliku od konvencionalnih reaktora, imaju dijelove reda veličine nekoliko mikrometara ili milimetara. U ovu skupinu ubrajaju se nanoreaktori, mikroreaktori te milireaktori. Nanoreaktori imaju dijelove veličine 1-100 nm, mikroreaktori 100 nm – 1 mm i milireaktori 1-10 mm [1]. Strukturne jedinice mikrostrukturiranih reaktora su mikrokanali, koji su unutarnjih dimenzija nekoliko mikrometara [2]. Uslijed velikog odnosa površine i volumena pokazuju dobra svojstva prilikom prijenosa tvari ili topline. Protok u mikrostrukturiranim reaktorima najčešće je laminaran. Materijali izrade mili i mikroreaktora ovise o njihovoj primjeni. Jedna od glavnih prednosti provođenja eksperimenata u mikrostrukturiranim reaktorima je sigurnost prilikom vođenja samih procesa, dok je najveći nedostatak malen kapacitet reaktora. Mili i mikroreaktori omogućuju nove procesne koncepte, što znači provođenje reakcija na visokom tlaku, temperaturi i koncentraciji. Karakteristike vođenja procesa u mili i mikroreaktorima razlikuje se od onih u konvencionalnim. Mili i mikroreaktori se mogu primijeniti na industrijske razine, zadržavajući svoja svojstva. Razlike u mili i mikroreaktorima najbolje se očituju u rezultatima reakcija provođenih u mili i mikroreaktorima.

Abstract (english)

Microstructured reactors are reactors that, in comparison to conventional reactors, have few micrometers or millimeters big structures. This group involves nanoreactors, microreactors and milireactors. Dimensions of structures inside nanoreactors are 1-100 nm, microreactors 100 nm – 1 mm and millireactors 1 – 100 mm [1]. Structure units of microstructured reactors are microchannels and their dimensions are about few micrometers [2]. Due to high ratio of surface and volume, they show good characteristics in transfer of mass and heat. Flow in microstructured reactors is mostly laminar. The materials for production of milli and microreactors are chosen depending on their application. One of the main advantages is safety during processes, while the main disadvantage is small capacity of reactors. Milli and microreactors enable reactions at high pressure, temperature and concentration, which are called novel process windows. Characteristics of processes in milli and microreactors are different than in conventional reactors. Milli and microreactors can be applied to industrial scale, keeping their characteristics. Differences between milli and microreactors are best manifested in results of reactions carried in milli and microreactors.

• Keywords: mikrostrukturirani reaktori; novi procesni koncepti; konvencionalni reaktori
• Keywords (english): microstructured reactors; novel process windows; conventional reactors
• Language: croatian
• URN:NBN: urn:nbn:hr:149:360952
• Study programme: Title: Materials Science and 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: 2018-02-08 12:13:13