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								Abedivaraki, M.
Bartková, D.
Buchholcerová, H.
Cíbiková, M.
Cimerman, R.
Damek, M.
Dreninová, V.
Dvonč, L.
Gálik, J.
Giertl, D.
Halušková, P.
Hassan, M.
Hennecke, A.
Chládeková, L.
Ivanová, P.
Janíková, K.
Jankovič, R.
Jedlovský, I.
Kintler, M.
Kováč, M.
Kovaľová, Z.
Kučerová, K.
Kukura, S.
Kunecová, D.
Lavrikova, A.
Leštinská, L.
Leštinský, M.
Maslík, J.
Maťáš, E.
Menthéour , R.
Miháliková, D.
Mišenko, P.
Molnár, M.
Ndiffo Yemeli, G.
Niklová, A.
Okruhlicová, V.
Omasta, S.
Pakosová, L.
Pásztor, S.
Pavle, M.
Pelach, M.
Polakovič, A.
Poljak, M.
Pongrác, B.
Pračko, M.
Račková, D.
Saedi , M.
Selvek, M.
Sersenová, D.
Seyfi, P.
Sič, J.
Strižencová, L.
Sučanská, A.
Štípala, P.
Tarabová, B.
Valovič, P.
Velísková, M.
Záňová, V.
Zigo, J.
Žilková, A.
								

								

								Mária Cíbiková
Bc. level: 2018 - 2019
Supervisor: Karol Hensel
Title (en): 
The effect of BaTiO3 a ZrO2 on naphtalene removal by plasma catalysis
Title (sk): 
Účinky BaTiO3 a ZrO2 na odstraňovanie naftalénu pomocou plazmovej katalýzy
Abstract (en)
Abstract (sk)
MSc. level: 2019 - 2021
Supervisor: Karol Hensel
Consultant: Richard Cimerman
Title (en): 
Selected aspects of naphthalene removal in plasma and catalyst systems
Title (sk): 
Vybrané aspekty odstraňovania naftalénu v systémoch plazmy a katalyzátora
Abstract (en):  hide
Biomass is one of the alternative sources of energy. However, conversion of biomass into energy by gasification or combustion processes produces a lot of pollutants including tars. Tars are complex compounds of mostly liquid hydrocarbons, that are highly toxic and carcinogenic, and also cause failures in industrial devices. Therefore, their removal is in high demand. There are few catalytic and thermal methods of tars removal, however energy efficiency of those methods is often very low. Plasma catalysis represents a promising method potentially useful for tars removal. Plasma is a mixture of various chemically reactive species that can react with a target compound (tar) and decompose it. Catalysis may improve energy efficiency and selectivity of the process. The combination of plasma and catalysis is often characterized by synergic effects. In such case the total effect is higher than a sum of individual effects of plasma and catalysis. 
In this study we investigated plasma and plasma-catalytic reactors, their electrical characteristics including number of current pulses and their amplitudes, their chemical activity and effects on naphthalene removal as function of specific input energy (SIE) as well as temperature and the type of packing material used in the plasma-catalytic reactor. The plasma was generated in air by dielectric barrier discharge (DBD) in plasma and plasma-catalytic reactors packed with ferroelectric BaTiO3 and catalytic ZrO2 in the form of pellets. We also analysed gaseous and solid products produced during the naphthalene removal by FTIR, SEM and EDX methods. The results showed that the amplitudes and the number of pulses observed were significantly higher in the plasma-catalytic reactors when compared to the plasma reactor. The highest number and the highest amplitudes of the current pulses we observed with the BaTiO3 reactor. During the naphthalene removal at both SIE (150 J/L and 320 J/L) the best removal efficiency was found with the BaTiO3 reactor ~ 72 % and ~ 80 %. We also analysed the gaseous products produced during the naphthalene removal process by monitoring the concentration of CO. All in all, we demonstrated and proved that plasma-catalysis is a promising method for naphthalene or eventually also another tars removal.
Abstract (sk)