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Statements

Subject Item
n2:RIV%2F67985858%3A_____%2F07%3A00091256%21RIV08-AV0-67985858
rdf:type
n11:Vysledek skos:Concept
dcterms:description
Tato práce se zabývá modifikaci směsných NiMgMn a CoMnAl oxidů malým množstvím vzácných kovů (Pt, Pd) a La během jejich přípravy (koprecipitace). Všechny katalyzátory byly charakterizovány BET, TPR, TPD a byla změřena jejich aktivita a selektivita při úplné oxidaci toluenu a ethanolu (GHSW=10 m3kg-1h-1). Nejaktivnější katalyzátory pro oxidaci toluenu a ethanolu byly NiMgMn modifikované 3hm.% La. Během oxidace toluenu, nedocházelo ke vzniku žádných meziproduktů. Avšak acetaldehyd a kyselina octová byly hlavní meziprodukty při oxidaci ethanolu. Modifikací CoMnAl se mnozstvi meziproduktů při oxidaci ethanolu snížilo. In this work, NiMgMn and CoMnAl mixed oxide system were modified with a small amount of noble metals (Pd, Pt) or La during coprecipitation to improve their catalytic properties. Catalysts were characterized by BET, TPR, TPD and thein activity and selektivity in total oxidation of toluene or ethanol was examined (GHSW=10 m3kg-1h-1). The NiMgMn catalyst promoted with 3 wt% La was the most active in both toluene and ethanol oxidation.The reaction product obtained at higher conversion of toluene over the parent mixed oxi de catalysts was only CO2. The products of ethanol oxidation apart from CO2, acetaldehyde and acetin acid were detected. Modification of CoMnAl mixed oxide decreased formation of acetaldehyde to non-detectable values at ethanol conversion higher than 80%. In this work, NiMgMn and CoMnAl mixed oxide system were modified with a small amount of noble metals (Pd, Pt) or La during coprecipitation to improve their catalytic properties. Catalysts were characterized by BET, TPR, TPD and thein activity and selektivity in total oxidation of toluene or ethanol was examined (GHSW=10 m3kg-1h-1). The NiMgMn catalyst promoted with 3 wt% La was the most active in both toluene and ethanol oxidation.The reaction product obtained at higher conversion of toluene over the parent mixed oxi de catalysts was only CO2. The products of ethanol oxidation apart from CO2, acetaldehyde and acetin acid were detected. Modification of CoMnAl mixed oxide decreased formation of acetaldehyde to non-detectable values at ethanol conversion higher than 80%.
dcterms:title
Properties and Activity of Modified Ni-Mg-Mn and Co-Mn-Al Mixed Oxides in Total Oxidation of VOCs. Vlastnosti NiMgMn a CoMnAl modifikovaných katalyzátorů a jejih aktivita při totální oxidaci VOC. Properties and Activity of Modified Ni-Mg-Mn and Co-Mn-Al Mixed Oxides in Total Oxidation of VOCs.
skos:prefLabel
Vlastnosti NiMgMn a CoMnAl modifikovaných katalyzátorů a jejih aktivita při totální oxidaci VOC. Properties and Activity of Modified Ni-Mg-Mn and Co-Mn-Al Mixed Oxides in Total Oxidation of VOCs. Properties and Activity of Modified Ni-Mg-Mn and Co-Mn-Al Mixed Oxides in Total Oxidation of VOCs.
skos:notation
RIV/67985858:_____/07:00091256!RIV08-AV0-67985858
n3:strany
173
n3:aktivita
n20:Z n20:P
n3:aktivity
P(GA104/07/1400), P(GD203/03/H140), Z(AV0Z40720504), Z(MSM6046137302)
n3:dodaniDat
n15:2008
n3:domaciTvurceVysledku
n16:2696371 n16:6049400 n16:8799938
n3:druhVysledku
n12:D
n3:duvernostUdaju
n18:S
n3:entitaPredkladatele
n21:predkladatel
n3:idSjednocenehoVysledku
445378
n3:idVysledku
RIV/67985858:_____/07:00091256
n3:jazykVysledku
n4:eng
n3:klicovaSlova
catalytic oxidation; voc; promotors
n3:klicoveSlovo
n7:promotors n7:catalytic%20oxidation n7:voc
n3:kontrolniKodProRIV
[26E67995B78A]
n3:mistoKonaniAkce
Tatranské Matliare
n3:mistoVydani
Bratislava
n3:nazevZdroje
Proceedings
n3:obor
n9:CF
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:projekt
n10:GD203%2F03%2FH140 n10:GA104%2F07%2F1400
n3:rokUplatneniVysledku
n15:2007
n3:tvurceVysledku
Jirátová, Květa Klempa, Jan Kovanda, F. Mikulová, Zuzana
n3:typAkce
n6:EUR
n3:zahajeniAkce
2007-05-21+02:00
n3:zamer
n5:AV0Z40720504 n5:MSM6046137302
s:numberOfPages
12
n19:hasPublisher
Slovak Society of Chemical Engineering
n17:isbn
978-80-227-2640-5