Preparation of Mo-S/C and Co-Mo-S/C Catalysts by Slurry Impregnation.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F02%3A27020066" target="_blank" >RIV/67985858:_____/02:27020066 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preparation of Mo-S/C and Co-Mo-S/C Catalysts by Slurry Impregnation.

Popis výsledku v původním jazyce

MoO3/activated carbon catalysts were prepared by a new impregnation method: Mo species were adsorbed from a MoO3/water slurry. The maximum achieved loading was 27-34 wt. % MoO3 for various carbons and the deposited phase was X-ray amorphous. The surfacearea and volume of micropores of the carbon supports dropped by about 40 % after saturation of the supports with molybdenum trioxide. For the support Norit RX, the point of zero charge decreased from an initial 8.2 to about 2.6 as the MoO3 loading increased up to about 15 % and then levelled off. The catalytic activity for the hydrodesulfurization of thiophene increased linearly with loading up to about 15 % and then almost levelled off. A strong synergistic effect in activity was achieved by addition of Co to the 15 % MoO3/C catalyst; however, the synergism observed when adding Co to a saturated 33 % MoO3/C catalyst was small. It was concluded that molybdenum trioxide is chemisorbed in a highly dispersed ômonolayerö form up to the load

Název v anglickém jazyce

Preparation of Mo-S/C and Co-Mo-S/C Catalysts by Slurry Impregnation.

Popis výsledku anglicky

MoO3/activated carbon catalysts were prepared by a new impregnation method: Mo species were adsorbed from a MoO3/water slurry. The maximum achieved loading was 27-34 wt. % MoO3 for various carbons and the deposited phase was X-ray amorphous. The surfacearea and volume of micropores of the carbon supports dropped by about 40 % after saturation of the supports with molybdenum trioxide. For the support Norit RX, the point of zero charge decreased from an initial 8.2 to about 2.6 as the MoO3 loading increased up to about 15 % and then levelled off. The catalytic activity for the hydrodesulfurization of thiophene increased linearly with loading up to about 15 % and then almost levelled off. A strong synergistic effect in activity was achieved by addition of Co to the 15 % MoO3/C catalyst; however, the synergism observed when adding Co to a saturated 33 % MoO3/C catalyst was small. It was concluded that molybdenum trioxide is chemisorbed in a highly dispersed ômonolayerö form up to the load

Druh

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

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

<a href="/cs/project/IAA4072802" target="_blank" >IAA4072802: Heterogenní katalyzátory a prekursory monovrstevného typu: nový typ synthesy "Suspenzní impregnací"</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

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

Název periodika

Petroleum and Coal

ISSN

1335-3055

e-ISSN

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Svazek periodika

43

Číslo periodika v rámci svazku

3-4

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

10

Strana od-do

198-207

Kód UT WoS článku

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EID výsledku v databázi Scopus

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