Hexagonal Mesoporous Silicas with and without Zr as Supports for HDS Catalysts.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F01%3A27013128" target="_blank" >RIV/67985858:_____/01:27013128 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Hexagonal Mesoporous Silicas with and without Zr as Supports for HDS Catalysts.

Popis výsledku v původním jazyce

Hexagonal mesoporous materials (HMS) with and without zirconium were used as supports for preparation of HDS catalysts. The catalysts prepared by modification of the supports with 12-phosphomolybdic acid (HPMo) were characterised by nitrogen adsorption,IR spectroscopy, TPD ammonia, TPR and catalic activity in thiophene hydrodesulphurisation. Parent silicas showed mesoporous structure with BET surface area between 1200 and 800 m2 g-1, pore size diameter around 3,3 nm and acidity around 0,3 mmol NH3 g-1.Molybdenum catalysts possess stronger acidity than the supports used. The catalytic activies in hydrodesulphurisation of thiophene of the molybdenum containing catalysts prepared with HMS were higher than the activity of the catalyst prepared with amorphous silica. Higher acidity of Zr-HMS supports lead to lower stability in the thiophene conversion.

Název v anglickém jazyce

Hexagonal Mesoporous Silicas with and without Zr as Supports for HDS Catalysts.

Popis výsledku anglicky

Hexagonal mesoporous materials (HMS) with and without zirconium were used as supports for preparation of HDS catalysts. The catalysts prepared by modification of the supports with 12-phosphomolybdic acid (HPMo) were characterised by nitrogen adsorption,IR spectroscopy, TPD ammonia, TPR and catalic activity in thiophene hydrodesulphurisation. Parent silicas showed mesoporous structure with BET surface area between 1200 and 800 m2 g-1, pore size diameter around 3,3 nm and acidity around 0,3 mmol NH3 g-1.Molybdenum catalysts possess stronger acidity than the supports used. The catalytic activies in hydrodesulphurisation of thiophene of the molybdenum containing catalysts prepared with HMS were higher than the activity of the catalyst prepared with amorphous silica. Higher acidity of Zr-HMS supports lead to lower stability in the thiophene conversion.

Druh

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

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2001

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

65

Číslo periodika v rámci svazku

2-4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

217-223

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—