Aromatization of alkanes over Pt promoted conventional and mesoporous gallosilicates of MEL zeolite

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F12%3A00375912" target="_blank" >RIV/61388955:_____/12:00375912 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cattod.2011.06.036" target="_blank" >http://dx.doi.org/10.1016/j.cattod.2011.06.036</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cattod.2011.06.036" target="_blank" >10.1016/j.cattod.2011.06.036</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Aromatization of alkanes over Pt promoted conventional and mesoporous gallosilicates of MEL zeolite

Popis výsledku v původním jazyce

Aromatization of hexane and propane was investigated over Pt promoted mesoporous gallium-containing HZSM-11 with controlled mesoporosity generated by desilication. Prepared catalysts were characterized by nitrogen adsorption, X-ray powder diffraction, scanning electron microscopy, Fourier transform infrared of chemisorbed pyridine, and NH3 temperature programmed desorption confirming the development of intracrystalline mesoporosity of Ga-containing HZSM-11. The catalytic activities, which were comparedin the aromatization of n-hexane and propane, increased upon desilication. The aromatization of n-hexane decreased in the following order, Pt/mesoporous GaZSM-11 > Pt/conventional GaZSM-11 > mesoporous GaZSM-11 > conventional GaZSM-11. Hexane conversionreached 70.1% over mesoporous Pt/GaZSM-11 with Si/Ga of 61, as compared with 29.6 and 24.9% for corresponding mesoporous and conventional GaZSM-11 (Si/Ga = 94), respectively, for experiments at liquid hour space velocity of 3.6 h(-1), and

Název v anglickém jazyce

Aromatization of alkanes over Pt promoted conventional and mesoporous gallosilicates of MEL zeolite

Popis výsledku anglicky

Aromatization of hexane and propane was investigated over Pt promoted mesoporous gallium-containing HZSM-11 with controlled mesoporosity generated by desilication. Prepared catalysts were characterized by nitrogen adsorption, X-ray powder diffraction, scanning electron microscopy, Fourier transform infrared of chemisorbed pyridine, and NH3 temperature programmed desorption confirming the development of intracrystalline mesoporosity of Ga-containing HZSM-11. The catalytic activities, which were comparedin the aromatization of n-hexane and propane, increased upon desilication. The aromatization of n-hexane decreased in the following order, Pt/mesoporous GaZSM-11 > Pt/conventional GaZSM-11 > mesoporous GaZSM-11 > conventional GaZSM-11. Hexane conversionreached 70.1% over mesoporous Pt/GaZSM-11 with Si/Ga of 61, as compared with 29.6 and 24.9% for corresponding mesoporous and conventional GaZSM-11 (Si/Ga = 94), respectively, for experiments at liquid hour space velocity of 3.6 h(-1), and

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Catalysis Today

ISSN

0920-5861

e-ISSN

—

Svazek periodika

179

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

61-72

Kód UT WoS článku

000298404600008

EID výsledku v databázi Scopus

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