Efekt typu nosiče na velikost synergického a promočního efektu v sulfidických CoMo hydrodesulfurizačních katalyzátorech.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F07%3A00091182" target="_blank" >RIV/67985858:_____/07:00091182 - 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

Effect of Support Type on the Magnitude of Synergism and Promotion in CoMo Sulphide Hydrodesulphurisation Catalyst.

Popis výsledku v původním jazyce

The Co, Mo and CoMo catalysts in different Co/Mo ratios supported on SiO2, ZrO2, TiO2, Al2O3, active carbon and MgO were prepared. The catalysts were tested in the hydrodesulphurisation of benzothiophene. The order of activity of monometallic Mo catalysts was MoO3/TiO2 > MoO3/C > MoO3/ZrO2 > MoO3/SiO2 > MoO3/Al2O3 > MoO3/MgO. The order of promotion of MoO3/support by Co addition was CoMo/MgO > CoMo/C > CoMo/Al2O3 > CoMo/TiO2 > CoMo/ZrO2 > CoMo/SiO2. The synergism in activity was accompanied with a decrease of hydrogenation/hydrogenolysis selectivity. Hydrogenolysis was promoted more than hydrogenation and thus less dihydrobenzothiophene was formed on CoMo than on Co and Mo catalysts. The TPR patterns were measured, and the degree of reduction correlated with the activity of monometallic catalysts. The TPR patterns of CoMo catalysts were similar to the patterns of Mo catalysts, and no correlation with magnitude of promotion was found.

Název v anglickém jazyce

Effect of Support Type on the Magnitude of Synergism and Promotion in CoMo Sulphide Hydrodesulphurisation Catalyst.

Popis výsledku anglicky

The Co, Mo and CoMo catalysts in different Co/Mo ratios supported on SiO2, ZrO2, TiO2, Al2O3, active carbon and MgO were prepared. The catalysts were tested in the hydrodesulphurisation of benzothiophene. The order of activity of monometallic Mo catalysts was MoO3/TiO2 > MoO3/C > MoO3/ZrO2 > MoO3/SiO2 > MoO3/Al2O3 > MoO3/MgO. The order of promotion of MoO3/support by Co addition was CoMo/MgO > CoMo/C > CoMo/Al2O3 > CoMo/TiO2 > CoMo/ZrO2 > CoMo/SiO2. The synergism in activity was accompanied with a decrease of hydrogenation/hydrogenolysis selectivity. Hydrogenolysis was promoted more than hydrogenation and thus less dihydrobenzothiophene was formed on CoMo than on Co and Mo catalysts. The TPR patterns were measured, and the degree of reduction correlated with the activity of monometallic catalysts. The TPR patterns of CoMo catalysts were similar to the patterns of Mo catalysts, and no correlation with magnitude of promotion was found.

Druh

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

CEP obor

CC - Organická chemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2007

Kód důvěrnosti údajů

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

Název periodika

Applied Catalysis A - General

ISSN

0926-860X

e-ISSN

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Svazek periodika

324

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

30-35

Kód UT WoS článku

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EID výsledku v databázi Scopus

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