. . . "Disproportionation of Trimethyl Benzenes over Large Pore Zeolites: Catalytic and Adsorption Study" . "Disproportionation of Trimethyl Benzenes over Large Pore Zeolites: Catalytic and Adsorption Study"@en . "The effect of the structure of large pore zeolites of Mordenite, beta, L and Y types on the activity, selectivity to xylenes and time-on-stream stability was investigated in trimethyl benzene disproportionation. Significant differences in conversion and time-on-stream stability were observed among individual zeolites. Zeolite beta and zeolite Y were found to exhibit the highest stability in conversion of trimethyl benzenes, while zeolite L and Mordenite were deactivated much faster. The optimum reaction conditions to achieve a high and stable conversion with sufficient selectivity to xylenes were at the reaction temperature of 400 degreesC with WHSV = 5-20 h(-1). Diffusion coefficients of trimethyl and tetramethyl benzenes over zeolites Y, beta and Mordenite at 25 degreesC were determined. Due to the significant differences in diffusion of individual trimethyl and tetramethyl benzenes, it is expected that diffusion of these molecules substantially influence the rate of this reaction."@en . "277" . . "Applied Catalysis" . "[7BD3B85067B2]" . "3"^^ . "3"^^ . . "The effect of the structure of large pore zeolites of Mordenite, beta, L and Y types on the activity, selectivity to xylenes and time-on-stream stability was investigated in trimethyl benzene disproportionation. Significant differences in conversion and time-on-stream stability were observed among individual zeolites. Zeolite beta and zeolite Y were found to exhibit the highest stability in conversion of trimethyl benzenes, while zeolite L and Mordenite were deactivated much faster. The optimum reaction conditions to achieve a high and stable conversion with sufficient selectivity to xylenes were at the reaction temperature of 400 degreesC with WHSV = 5-20 h(-1). Diffusion coefficients of trimethyl and tetramethyl benzenes over zeolites Y, beta and Mordenite at 25 degreesC were determined. Due to the significant differences in diffusion of individual trimethyl and tetramethyl benzenes, it is expected that diffusion of these molecules substantially influence the rate of this reaction." . "NL - Nizozemsko" . "0926-860X" . . "RIV/61388955:_____/04:00000309" . "Disproporcionace trimethyl benzen\u016F na \u0161irokopor\u00E9zn\u00ED\u00EDch zeolitech: katalytick\u00E1 a adsorp\u010Dn\u00ED studie"@cs . . . "Disproportionation of Trimethyl Benzenes over Large Pore Zeolites: Catalytic and Adsorption Study" . . . "1/2" . . "Kotrla, Josef" . "\u010Cejka, Ji\u0159\u00ED" . . . . . "Disproporcionace trimethyl benzen\u016F na \u0161irokopor\u00E9zn\u00ED\u00EDch zeolitech: katalytick\u00E1 a adsorp\u010Dn\u00ED studie"@cs . . "Krej\u010D\u00ED, Andrea" . . . "9"^^ . "trimethyl benzenes; xylenes; tetramethyl benzenes; disproportionation"@en . "Byl studov\u00E1n vliv struktury \u0161irokopor\u00E9zn\u00EDch zeolit\u016F Y, Beta, L and mordenitu na aktivitu, selektivitu na xyleny a \u010Dasovou stabilitu p\u0159i disproporcionaci trimethylbenzen\u016F. Mezi jednotliv\u00FDmi zeolity byly shled\u00E1ny z\u00E1sadn\u00ED rozd\u00EDly. Nejvy\u0161\u0161\u00ED aktivitu a \u010Dasovou st\u00E1lost vykazovaly zeolity Y a Beta zat\u00EDmco mordenit a zeolit L se velmi snadno deaktivovaly. Nejvy\u0161\u0161\u00ED stabilita konverze p\u0159i rozumn\u00E9 selektivit\u011B na xyleny byla dosa\u017Eena p\u0159i 400 oC a WHSV = 5-20 h-1. Na studovan\u00FDch zeolitech byly zm\u011B\u0159eny t\u00E9\u017E difuzn\u00ED koeficienty trimethylbenzen\u016F a tetramethylbenzen\u016F, kter\u00E9 potvrdily rozd\u00EDlnou rychlost transportu reaktant\u016F a produkt\u016F. Nav\u00EDc tyto experimenty prok\u00E1zaly rozd\u00EDlnou dostupnost katalyticky aktivn\u00EDch center v kan\u00E1lech jednotliv\u00FDch zeolit\u016F"@cs . "RIV/61388955:_____/04:00000309!RIV/2005/AV0/A54005/N" . . "191;199" . "560789" . . "P(GA104/99/0840), P(IBS4040015), Z(AV0Z4040901)" . "Disproportionation of Trimethyl Benzenes over Large Pore Zeolites: Catalytic and Adsorption Study"@en . .