The Comparison of Co, Ni, Mo, CoMo and NiMo Sulfided Catalysts in Rapeseed Oil Hydrodeoxygenation.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F17%3A00477500" target="_blank" >RIV/67985858:_____/17:00477500 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22320/17:43913291

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11144-017-1247-2" target="_blank" >http://dx.doi.org/10.1007/s11144-017-1247-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11144-017-1247-2" target="_blank" >10.1007/s11144-017-1247-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The Comparison of Co, Ni, Mo, CoMo and NiMo Sulfided Catalysts in Rapeseed Oil Hydrodeoxygenation.

Popis výsledku v původním jazyce

The Al2O3 supportedmonometallic Co, Ni andMoand bimetallic CoMo and NiMo catalysts were compared in rapeseed oil hydrodeoxygenation (HDO) reaction after in situ sulfidation. The reaction was described by five pseudo-first order rate constants (k1–k5) for the simplified reaction scheme: triglycerides (Tgs) to octadecane (k1), Tgs to oxygenates (Oxs, i.e., sum of fatty acids, fatty alcohols, and esters of fatty acids and fatty alcohols) (k2), Tgs to heptadecane (k3), Oxs to octadecane (k4), andOxs to heptadecane (k5). The empirical pseudo-first order rate constant of the hydrocarbons (Hcs) product formation (kHc) increased in the order Ni/Al2O3 * Co/Al2O3CoMo/ Al2O3 * Mo/Al2O3 _ NiMo/Al2O3 showing hence a significant synergy between Ni and Mo. All monometallic catalysts exhibited k1 and k3 practically zero and the reaction proceeded essentially through the formation of the oxygenated reaction intermediates (high k2). The Co/Al2O3 and Ni/Al2O3 catalyzed selectively hydrodecarboxylation (HDC) of fatty acids (high k5). OverMo/Al2O3, theHDOpathway, however, was nearly the exclusive one (high k4). CoMo/Al2O3 and NiMo/Al2O3 catalysts yielded both HDO and HDC products suggesting partial synergy in the relative selectivity HDO/HDC between Co(Ni) and Mo.

Název v anglickém jazyce

The Comparison of Co, Ni, Mo, CoMo and NiMo Sulfided Catalysts in Rapeseed Oil Hydrodeoxygenation.

Popis výsledku anglicky

The Al2O3 supportedmonometallic Co, Ni andMoand bimetallic CoMo and NiMo catalysts were compared in rapeseed oil hydrodeoxygenation (HDO) reaction after in situ sulfidation. The reaction was described by five pseudo-first order rate constants (k1–k5) for the simplified reaction scheme: triglycerides (Tgs) to octadecane (k1), Tgs to oxygenates (Oxs, i.e., sum of fatty acids, fatty alcohols, and esters of fatty acids and fatty alcohols) (k2), Tgs to heptadecane (k3), Oxs to octadecane (k4), andOxs to heptadecane (k5). The empirical pseudo-first order rate constant of the hydrocarbons (Hcs) product formation (kHc) increased in the order Ni/Al2O3 * Co/Al2O3CoMo/ Al2O3 * Mo/Al2O3 _ NiMo/Al2O3 showing hence a significant synergy between Ni and Mo. All monometallic catalysts exhibited k1 and k3 practically zero and the reaction proceeded essentially through the formation of the oxygenated reaction intermediates (high k2). The Co/Al2O3 and Ni/Al2O3 catalyzed selectively hydrodecarboxylation (HDC) of fatty acids (high k5). OverMo/Al2O3, theHDOpathway, however, was nearly the exclusive one (high k4). CoMo/Al2O3 and NiMo/Al2O3 catalysts yielded both HDO and HDC products suggesting partial synergy in the relative selectivity HDO/HDC between Co(Ni) and Mo.

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

2017

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

122

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

333-341

Kód UT WoS článku

000408706800023

EID výsledku v databázi Scopus

2-s2.0-85027718351