Hydrodesulfurization NiMo Catalysts over Gamma-Alumina Prepared Mechanochemically.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F18%3A00491065" target="_blank" >RIV/67985858:_____/18:00491065 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11144-018-1436-7" target="_blank" >http://dx.doi.org/10.1007/s11144-018-1436-7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11144-018-1436-7" target="_blank" >10.1007/s11144-018-1436-7</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hydrodesulfurization NiMo Catalysts over Gamma-Alumina Prepared Mechanochemically.

Popis výsledku v původním jazyce

The novel ˠ-Al2O3 synthesis by mechanochemical activation of aluminum nitrate hydrate was applied to prepare hydrodesulfurization (HDS) NiMo catalysts. Impregnation techniques using the complex made by dissolution of nitrilotriacetic acid (NTA), ammonium heptamolybdate and nickel nitrate and the Anderson-type heteropolyoxymolybdate ((NH4)4Ni(OH)6Mo6O18) complex were compared with conventional impregnation using subsequent deposition of ammonium heptamolybdate (first) and nickel nitrate (second) with calcination in between. Properties of the support and HDS catalysts were studied by N2 physisorption, Raman spectroscopy, H2 temperature-programmed reduction (H2-TPR), O2 chemisorption and X-ray photoelectron spectroscopy (XPS). Both catalysts prepared from the complexes were at least 1.5-fold more active in the HDS reaction of 1-benzothiophene (360 °C and 1.6 MPa) than the catalyst prepared conventionally. The most promising preparation method for gaining highly active HDS catalyst on the studied ˠ-Al2O3 was the deposition of (NH4)4Ni(OH)6Mo6O18. This catalyst exhibited about 1.9 and 1.4 higher HDS activity in comparison to the conventionally prepared NiMo and reference commercial NiMo counterparts, respectively.

Název v anglickém jazyce

Hydrodesulfurization NiMo Catalysts over Gamma-Alumina Prepared Mechanochemically.

Popis výsledku anglicky

The novel ˠ-Al2O3 synthesis by mechanochemical activation of aluminum nitrate hydrate was applied to prepare hydrodesulfurization (HDS) NiMo catalysts. Impregnation techniques using the complex made by dissolution of nitrilotriacetic acid (NTA), ammonium heptamolybdate and nickel nitrate and the Anderson-type heteropolyoxymolybdate ((NH4)4Ni(OH)6Mo6O18) complex were compared with conventional impregnation using subsequent deposition of ammonium heptamolybdate (first) and nickel nitrate (second) with calcination in between. Properties of the support and HDS catalysts were studied by N2 physisorption, Raman spectroscopy, H2 temperature-programmed reduction (H2-TPR), O2 chemisorption and X-ray photoelectron spectroscopy (XPS). Both catalysts prepared from the complexes were at least 1.5-fold more active in the HDS reaction of 1-benzothiophene (360 °C and 1.6 MPa) than the catalyst prepared conventionally. The most promising preparation method for gaining highly active HDS catalyst on the studied ˠ-Al2O3 was the deposition of (NH4)4Ni(OH)6Mo6O18. This catalyst exhibited about 1.9 and 1.4 higher HDS activity in comparison to the conventionally prepared NiMo and reference commercial NiMo counterparts, respectively.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GA17-22490S" target="_blank" >GA17-22490S: Nové přípravy katalyzátorů pro klíčové hydrorafinační reakce</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Reaction Kinetics Mechanism and Catalysis

ISSN

1878-5190

e-ISSN

—

Svazek periodika

125

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

19

Strana od-do

319-337

Kód UT WoS článku

000443009300023

EID výsledku v databázi Scopus

2-s2.0-85048820756