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| rdf:type
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| Description
| - SSZ-33 based-catalyst, after modification with Mo and alumina binder, was evaluated in long-run tests in the toluene disproportionation in the presence of hydrogen as a carrier gas. The activity and selectivity of this catalyst were compared with those of ZSM-5 and mesoporous ZSM-5 prepared with the same concentration of Mo and alumina. Formation of the final catalysts decreased the void volume of micropores in order SSZ-33 > ZSM-5 > ZSM-5/Meso. Simultaneously, the concentration of Lewis acid sites increased due to the addition of alumina to the catalyst. The highest toluene conversion was achieved with SSZ-33 catalyst comprising 12-12-10-ring channels, which is the result of high acidity of this zeolite together with increased mass transport through large pores. ZSM-5 zeolite exhibited lower toluene conversion while only a low activity was found for mesoporous ZSM-5 probably due to the limitations of the access to the zeolite channels after modification with alumina.
- SSZ-33 based-catalyst, after modification with Mo and alumina binder, was evaluated in long-run tests in the toluene disproportionation in the presence of hydrogen as a carrier gas. The activity and selectivity of this catalyst were compared with those of ZSM-5 and mesoporous ZSM-5 prepared with the same concentration of Mo and alumina. Formation of the final catalysts decreased the void volume of micropores in order SSZ-33 > ZSM-5 > ZSM-5/Meso. Simultaneously, the concentration of Lewis acid sites increased due to the addition of alumina to the catalyst. The highest toluene conversion was achieved with SSZ-33 catalyst comprising 12-12-10-ring channels, which is the result of high acidity of this zeolite together with increased mass transport through large pores. ZSM-5 zeolite exhibited lower toluene conversion while only a low activity was found for mesoporous ZSM-5 probably due to the limitations of the access to the zeolite channels after modification with alumina. (en)
- Modifikované SSZ-33 katalyzátory Mo a aluminou byli testovány v dlouhotrvajícím experimentu, disproporcionaci toluenu, v přítomnosti vodíku jako nosného plynu. Aktivita a selektivita tohoto katalyzátoru byla srovnána s aktivitou zeolitů ZSM-5 a mesoporézním ZSM-5, které byli připraveny se stejnou koncentrací Mo a aluminy. Modifikací těchto zeolitů klesl objem mikropórů v řadě SSZ-33 > ZSM-5 > ZSM 5/Mezo. Současně po přidání aluminy ke katalyzátoru vzrostla koncentrace Lewisových center. Nejvyšší konverze toluenu bylo dosaženo na katalyzátoru SSZ-33, který se skládá z 12-12-10-ti četných kanálů, jako výsledek vyšší kyselosti spolu se zvýšeným transportem hmoty uvnitř velkých kanálů. Nižší konverze bylo dosaženo na katalyzátoru ZSM-5, zatímco mesoporézní ZSM-5 poskytl nejnižší konverzi, pravděpodobně kvůli omezenému přístupu do kanálů zeolitů po modifikaci aluminou. (cs)
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| Title
| - Comparison of Activity and Selectivity of SSZ-33 Based Catalyst with other Zeolites in Toluene Disproportionation
- Comparison of Activity and Selectivity of SSZ-33 Based Catalyst with other Zeolites in Toluene Disproportionation (en)
- Srovnání aktivity a selektivity katalyzátorů na bázi SSZ-33 s jinými zeolity v disproporcionaci toluenu (cs)
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| skos:prefLabel
| - Comparison of Activity and Selectivity of SSZ-33 Based Catalyst with other Zeolites in Toluene Disproportionation
- Comparison of Activity and Selectivity of SSZ-33 Based Catalyst with other Zeolites in Toluene Disproportionation (en)
- Srovnání aktivity a selektivity katalyzátorů na bázi SSZ-33 s jinými zeolity v disproporcionaci toluenu (cs)
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| skos:notation
| - RIV/61388955:_____/09:00323279!RIV09-AV0-61388955
|
| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(1QS400400560), P(GD203/08/H032), Z(AV0Z40400503)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61388955:_____/09:00323279
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - SSZ-33; ZSM-5 zeolites; mesoporous ZSM-5; molybdenum (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| |
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Al-Khattaf, S.
- Čejka, Jiří
- Pavlačková, Zuzana
- Ali, M. A.
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| http://linked.open...ain/vavai/riv/wos
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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