20.500.12556/DKUM-42014 Reaktivna absorpcija CO 2 v mešanice ionskih tekočin in etanolamina Reactive CO 2 absorption in mixtures of ionic liquids and ethanolamine V zadnjem stoletju so človekove dejavnosti v ozračje izpustile velike količine CO2 in drugih dimnih plinov, ki so posledica globalno segrevanje. To lahko s časom vpliva na zaloge vode, na okolje, na naše zdravje in varnost. Odstranjevanje emisij CO2 iz dimnih plinov je zelo pomembno s stališča narave in nam predstavlja velik izziv. Procesi za odstranjevanje CO2 iz dimnih plinov temeljijo na kemijski in fizikalni absorpciji v tekočinah. Etanolamin je najbolj pogost amin za zamreževanje CO2. Velik potencial za zamreževanje CO2 iz dimnih plinov pa prikazujejo tudi ionske tekočine, zaradi njihovih unikatnih lastnosti, kot so stabilnost v velikem temperaturnem razponu, nehlapnost in visoko tališče, ki se kaže s toplotno stabilnostjo. Namen diplomskega dela je bil osredotočen na možno uporabo mešanic etanolamina in ionskih tekočin kot sredstvo za zamreženje CO2. Ta proces je prvič zasnoval Camper s sodelavci, ko je predlagal mešanje ionskih tekočin s skomercializiranimi amini. V eksperimentalnem delu smo mešanice vode in etanolamina primerjali z mešanicami ionskih tekočin in etanolamina, po tem, ko smo jim dodali CO2. Spremembe temperatur vzorcev smo med procesom opazovali in jih na koncu primerjali. Za nadaljno karakterizacijo smo uporabljali Fourirerjevo transformacijsko infrardečo spektroskopijo (FTIR). For the past century human activities have released large amounts of CO2 and other greenhouse gases into the atmosphere. These gases are held responsible for global warming. With time, these changes can affect water supplies, natural environment, health and safety. From the environmental point of view reducing the greenhouse gas emissions of CO2 is very important and it presents an enormous challenge. Processes for removing CO2 from flue gases are based on chemical or physical absorption in liquids. Mono-ethanolamine (MEA) is the most commonly used amine for CO2 capture. Ionic liquids have shown great potential for capturing CO2 from flue gases, because of their unique characteristics such as chemical stability over a wide range of temperatures, low volatility, and high melting points, thus providing thermal stability. The aim of this work was focused on the possibility of using MEA - ionic liquids’ solutions as solvents for capturing CO2. This approach was first initiated by Camper et.al, who suggested mixing room temperature ionic liquids (RTILs) with commercial amines. During the experimental section, aqueous MEA solutions were compared with MEA in ionic liquids’ solutions, whilst CO2 was added to the mixtures. The changes in temperatures of the samples were observed and compared. For further characterization Fourier Transform Infra-Red spectroscopy (FTIR) was carried out. CO2 etanolamin ionske tekočine absorpcija desorpcija fazna ravnotežja zamreženje CO2 CO2 ethanolamine ionic liquids absorption desorption phase equilibrium CO2 capture true true false [K. Turk] Slovenski jezik Angleški jezik Diplomsko delo 2013-09-10 01:03:28 2013-09-26 14:49:14 2022-05-06 03:07:05 2021-04-26 03:31:57 2013 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66.081.2:543.272.62(043.2) 17479190 URN:SI:UM:DK:3KPZUWDA UNI_Turk_Katarina_2013.pdf UNI_Turk_Katarina_2013.pdf 1 DA1AB3585231EB5F717A44D5EF32AB3E 715f24510864700694b7a087f8bbe52abd646cc3c905e67dd68b49d474463518 4d138795-7c0a-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=58524 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0