Uklanjanje CO2 iz otpadnih plinova procesom adsorpcije s promjenom tlaka

master's thesis

• Title (english): CO2 capture from flue gas streams using pressure swing adsorption
• Author: Tomislav Blagec
• Mentor: Igor Dejanović (mentor)
• Committee member: Igor Dejanović (predsjednik povjerenstva)
• Committee member: Aleksandra Sander (član povjerenstva)
• Committee member: Goran Lukač (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2023-09-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

Adsorpcija s promjenom tlaka je najkorištenija tehnologija za izdvajanje ugljikova (IV) oksida iz dimnih plinova u industrijskim razmjerima. Tehnologija se temelji na tlačenju kolona i spuštanju tlaka u kolonama pri kojima se ugljikov (IV) oksid adsorbira i desorbira protustrujnim ispiranjem. U svrhu izdvajanja ugljikova (IV) oksida iz dimnog plina čistoće preko 80 mol%, napravljena je simulacija u dva stupnja. U prvom stupnju, ugljikov (IV) oksid uklanja se iz dimnog plina adsorpcijom s promjenom tlaka pomoću dvije kolone. U drugom stupnju, pojnu struju predstavlja izlazna struja bogata s ugljikovim (IV) oksidom iz prvog stupnja. Drugim stupnjem dodatno se pročišćava struja zbog dobivanja veće čistoće. Međutim cilj simulacije je i postići veliki iscrpak. Simulacijom drugom stupnja se dodatno gubi ugljikov (IV) oksid, stoga drugi stupanj smanjuje ukupni iscrpak ugljikova (IV) oksida. Dobiveni rezultati ukazuju da je primjenom ove metode moguće dobiti čistoću ugljikova (IV) oksida oko 80 mol%, ali nije moguće dobiti veliki iscrpak ovakvom postavkom metode.

Abstract (english)

Pressure swing adsorption is the most widely used technology for carbon capture from flue gases on an industrial scale. The technology is based on column pressurization and depressurization where carbon is adsorbed and desorbed by countercurrent purging. In order to capture carbon from flue gas with a purity of over 80 mol%, a two-stage simulation was made. In the first stage carbon is removed from the flue gas by pressure swing adsorption using two columns. In the second stage, the feed current is the output current which is rich with carbon from first stage. In the second stage, the current is additionally purified to obtain greater puritiy. However, the aim of simulation is also to achieve a large recovery. By simulating the second stage, carbon is additionally lost, therefore the second stage reduces the total recovery of carbon. The obtained results indicate that by applying this method it is possible to obtain a purity of about 80 mol% of carbon, but is not possible to obtain a large recovery.

• Keywords: adsorpcija; promjena tlaka; ugljikov (IV) oksid; izdvajanje; simulacija; čistoća; iscrpak
• Keywords (english): adsorption; pressure change; carbon; carbon capture; simulation; purity; recovery
• Language: croatian
• URN:NBN: urn:nbn:hr:149:888323
• Study programme: Title: Chemical Engineering - Graduate study; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-11-21 12:21:33