On the origin of the transesterification reaction route during dimethyl adipate hydrogenolysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22320%2F20%3A43920343" target="_blank" >RIV/60461373:22320/20:43920343 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22350/20:43920343

Výsledek na webu

<a href="https://doi.org/10.1016/j.apcata.2020.117825" target="_blank" >https://doi.org/10.1016/j.apcata.2020.117825</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apcata.2020.117825" target="_blank" >10.1016/j.apcata.2020.117825</a>

Jazyk výsledku

angličtina

Název v původním jazyce

On the origin of the transesterification reaction route during dimethyl adipate hydrogenolysis

Popis výsledku v původním jazyce

Esters hydrogenolysis over CuZn catalysts was shown to be accompanied by transesterification lowering the yield of the desired alcohol. Here we investigate the origin of the transesterification activity by studying Cu, Zn and CuZn based catalysts in transesterification of dimethyl adipate (DMA) with hexane-1,6-diol (HDO). The experiments were performed at conditions relevant for hydrogenolysis, i.e. 210 °C and 10–70 bar of either N2 or H2 atmosphere. Although transterification was found to be catalysed by acid impurities present in DMA, the main formation of the transesterification products was due to the ZnO phase in the studied catalysts. In contrast, Cu or CuO phase were virtually inactive in transesterification. Moreover, it was shown that the reduced Cu-ZnO catalyst was stable under reaction conditions whereas its oxide form CuO-ZnO underwent leaching. The obtained catalytic data also evidenced that the transesterification products were important reaction intermediates in the formation of HDO. © 2020 Elsevier B.V.

Název v anglickém jazyce

On the origin of the transesterification reaction route during dimethyl adipate hydrogenolysis

Popis výsledku anglicky

Esters hydrogenolysis over CuZn catalysts was shown to be accompanied by transesterification lowering the yield of the desired alcohol. Here we investigate the origin of the transesterification activity by studying Cu, Zn and CuZn based catalysts in transesterification of dimethyl adipate (DMA) with hexane-1,6-diol (HDO). The experiments were performed at conditions relevant for hydrogenolysis, i.e. 210 °C and 10–70 bar of either N2 or H2 atmosphere. Although transterification was found to be catalysed by acid impurities present in DMA, the main formation of the transesterification products was due to the ZnO phase in the studied catalysts. In contrast, Cu or CuO phase were virtually inactive in transesterification. Moreover, it was shown that the reduced Cu-ZnO catalyst was stable under reaction conditions whereas its oxide form CuO-ZnO underwent leaching. The obtained catalytic data also evidenced that the transesterification products were important reaction intermediates in the formation of HDO. © 2020 Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

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

Návaznosti

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

Rok uplatnění

2020

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

—

Svazek periodika

606

Číslo periodika v rámci svazku

25 September 2020

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

000581705100009

EID výsledku v databázi Scopus

2-s2.0-85091111253