About: Preparation of Al-SBA-15 Pellets with Low Amount of Additives: Effect of Binder Content on Texture and Mechanical Properties. Application to Friedel-Crafts Alkylation

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About: Preparation of Al-SBA-15 Pellets with Low Amount of Additives: Effect of Binder Content on Texture and Mechanical Properties. Application to Friedel-Crafts Alkylation Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Colloidal silica sol was used as a binder for the preparation of Al-SBA-15 pellets. Only 18 wt. % of silica was sufficient to form pellets that possessed mechanical strength comparable with industrial catalysts. Moreover, these pellets exhibited only minor changes in texture parameters in comparison with parent powder (the decrease of mesopore surface area and mesopore volume was not higher than 25 %). However, even such small amount of binder caused a substantial reduction of reaction rate in Friedel-Crafts alkylation of toluene with benzyl alcohol. The time to reach 50 % conversion of benzyl alcohol was for the pellets containing 18 wt. % of silica about five times higher in comparison with binder-free pellets. This decrease in the reaction rate was due to a partial decay of acid sites by alkali ions present in the binder solution and increased diffusion hindrances inside catalyst pellets. Colloidal silica sol was used as a binder for the preparation of Al-SBA-15 pellets. Only 18 wt. % of silica was sufficient to form pellets that possessed mechanical strength comparable with industrial catalysts. Moreover, these pellets exhibited only minor changes in texture parameters in comparison with parent powder (the decrease of mesopore surface area and mesopore volume was not higher than 25 %). However, even such small amount of binder caused a substantial reduction of reaction rate in Friedel-Crafts alkylation of toluene with benzyl alcohol. The time to reach 50 % conversion of benzyl alcohol was for the pellets containing 18 wt. % of silica about five times higher in comparison with binder-free pellets. This decrease in the reaction rate was due to a partial decay of acid sites by alkali ions present in the binder solution and increased diffusion hindrances inside catalyst pellets. (en)
Title	Preparation of Al-SBA-15 Pellets with Low Amount of Additives: Effect of Binder Content on Texture and Mechanical Properties. Application to Friedel-Crafts Alkylation Preparation of Al-SBA-15 Pellets with Low Amount of Additives: Effect of Binder Content on Texture and Mechanical Properties. Application to Friedel-Crafts Alkylation (en)
skos:prefLabel	Preparation of Al-SBA-15 Pellets with Low Amount of Additives: Effect of Binder Content on Texture and Mechanical Properties. Application to Friedel-Crafts Alkylation Preparation of Al-SBA-15 Pellets with Low Amount of Additives: Effect of Binder Content on Texture and Mechanical Properties. Application to Friedel-Crafts Alkylation (en)
skos:notation	RIV/67985858:_____/11:00357572!RIV12-AV0-67985858
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA104/09/0694), P(KAN400720701), Z(AV0Z40720504)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Šolcová, Olga Topka, Pavel Karban, Jindřich Soukup, Karel Jirátová, Květa
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav chemických procesů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	223071
http://linked.open...ai/riv/idVysledku	RIV/67985858:_____/11:00357572
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	mesoporous aluminosilicates; pellets; Al-SBA-15 (en)
http://linked.open.../riv/klicoveSlovo	Al-SBA-15 mesoporous aluminosilicates pellets
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[8FEE4F243022]
http://linked.open...i/riv/nazevZdroje	Chemical Engineering Journal
http://linked.open...in/vavai/riv/obor	CI
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Advanced Photocatalytic Processes - Nanotechnology for Environmental Hierarchic nanosystems for microelektronics
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	168
http://linked.open...iv/tvurceVysledku	Topka, Pavel Šolcová, Olga Jirátová, Květa Karban, Jindřich Soukup, Karel
http://linked.open...ain/vavai/riv/wos	000289704400050
http://linked.open...n/vavai/riv/zamer	Investigation of multiphase reacting systems for the design of processes important in synthesis and preparation of novel materials, in energy production and in environmental protection
issn	1385-8947
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.cej.2010.12.079

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