Porównanie aktywności katalizatorów perowskitowego i palladowego w utlenianiu organicznych zanieczyszczeń powietrza

• Autorzy: Musialik-Piotrowska A. , Koyer-Gołkowska A.

Warianty tytułu

EN

Activities of perovskite and palladium catalysts in the oxidation of organic air pollutants

• Języki publikacji: PL

Abstrakty

EN

One of the advantageous methods for the control of VOC emission is their catalytic oxidation. In the study reported in this paper, hydrocarbons of choice and oxygen compounds were combusted alone or in mixtures over two monolithic catalysts - a perovskite catalyst (PER-Ag) and a palladium catalyst (M-2). It was only in the oxidation of toluene vapours that M-2 showed a noticeably higher activity than did PER-Ag. There was no difference in the activity between the two catalysts in the oxidation of ethanol and n-hexane, but PER-Ag performed much better in the oxidation of ethyl acetate and acetone. Although the presence of oxygen compounds practically did not affect the performance of M-2 in the combustion of toluene and n-hexane at temperatures higher than 380°C there was a distinct inhibiting effect when the hydrocarbons were combusted over PER-Ag. The presence of hydrocarbons did not very much influence the conversion of oxy-derivatives over M-2 or PER-Ag (over the latter only above 300°C). Toluene had an influence on the selectivity of the reaction to acetaldehyde when the oxy-derivatives were oxidized - over both catalysts the concen-trations were higher than when the oxy-derivative compounds were combusted alone. In the presence of n-hexane, no intermediate products of ethyl acetate and acetone oxidation were yielded over PER-Ag.

Słowa kluczowe

PL

oczyszczanie powietrza; związki organiczne lotne; utlenianie zanieczyszczeń; metoda katalitycznego dopalania; katalizator tlenkowy; katalizator perowskitowy; katalizator palladowy

• Wydawca: Polskie Zrzeszenie Inżynierów i Techników Sanitarnych, Oddział Dolnośląski
• Czasopismo: Ochrona Środowiska
• Rocznik: 2002
• Tom: nr 2
• Strony: 7--12
• Opis fizyczny: Bibliogr. 12 poz., tab., wykr.

Twórcy

autor

Musialik-Piotrowska A.

• Instytut Inżynierii Ochrony Środowiska, Politechnika Wrocławska, Wyb. S. Wyspiańskiego 27, 50-370 Wrocław

autor

Koyer-Gołkowska A.

• Instytut Inżynierii Ochrony Środowiska, Politechnika Wrocławska, Wyb. S. Wyspiańskiego 27, 50-370 Wrocław

Bibliografia

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• 3. B. NOWICKI, J. WRÓBEL, Z. MACIEJEWSKI: Katalityczne oczyszczanie gazów odlotowych od par kwasu octowego i formaldehydu. Ochrona Powietrza, 1997, nr 2, ss. 49-52.
• 4. H. G. LINTZ, K. WITTSTOCK: Catalytic combustion of solvent containing air on base metal catalysts. Catal. Today, Vol. 29, pp. 457-461.
• 5. N. WATANABE, H. YAMASHITA, H. MIYADERA, S. TOMINAGA: Removal of unpleasant odor gases using Ag-Mn catalyst. Applied Catal. B: Environ., 1996, Vol. 8, pp. 405-415.
• 6. S. LARS, T. ANDERSSON: Catalytic oxidation of toluene over Y-Ba-Cu perovskites. Journal Chem. Soc. Faraday Trans., 1992, Vol. 88, pp. 83-90.
• 7. G. SINQUIN, C. PETIT, S. LIBS, J. P. HINDERMANN, A. KIEN- NEMANN: Catalytic destruction of chlorinated C2 compounds on aLaMn03+ perovskite catalyst. Applied Catal. B: Environ., 2001, Vol. 32, pp. 37-47.
• 8. R. SCHNEIDER, D. KIESSLING, G. WENDT: Cordierite monolith supported perovsldtetype oxide catalysts for the total oxidation of chlorinated hydrocarbons. Applied Catal. B: Environ., 2000, Vol. 28, pp. 187-195.
• 9. A. MUSIALIK-PIOTROWSKA, K. SYCZEWSKA: Destruction of volatile organie mixtures by catalytic combustion. Environ. Prot. Engineering, 1989, Vol. 15, No. 1-2, pp. 117-126.
• 10. A. MUSIALIK-PIOTROWSKA, K. SYCZEWSKA: Combustion of volatile organie compounds in two-component mixtures over monolithic perovskite catalysts. Catal. Today, 2000, Vol. 59, No. 3-4, pp. 269-278.
• 11. A. MU SIAKIK-PIOTROWS K A, K. SYCZEWSKA, E. SCHUBERT: Oxidation of VOCs over monolithic perovskite catalysts. Environ. Prot. Engineering, 2000, Vol. 26, No. 1-2, pp. 119-130.
• 12. Dziennik Ustaw nr 55 z 28 kwietnia 1998 r., poz. 355.