The effect of the nanoscale intimacy of platinum and acid centres on the hydroisomerization of short-chain alkanes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F22%3A00554334" target="_blank" >RIV/61388955:_____/22:00554334 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216275:25310/22:39919062

Výsledek na webu

<a href="http://hdl.handle.net/11104/0328962" target="_blank" >http://hdl.handle.net/11104/0328962</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apcata.2022.118535" target="_blank" >10.1016/j.apcata.2022.118535</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The effect of the nanoscale intimacy of platinum and acid centres on the hydroisomerization of short-chain alkanes

Popis výsledku v původním jazyce

This study analyses the effect of the nanoscale intimacy of Pt metal and Brønsted acid sites on the hydroisomerization of n-pentane and n-hexane using a series of zeolite/binder composite catalysts with Pt located outside or inside of the zeolite crystal and with Pt dispersed in the zeolite crystal and its vicinity on the binder. Analysis of the conversions of n-pentane and n-hexane to branched isomers and Cn≤4 byproducts under the relevant conditions of the process showed that the highest activity is obtained for catalysts with high proximity of acid and Pt sites dispersed in the zeolite crystal together with Pt on the binder surrounding the zeolite crystals. Such an arrangement allows the hydrogenation/dehydrogenation of alkanes in close proximity to the Brønsted sites, allowing the full functionality of acid sites and limiting the diffusion of intermediate alkenes between Pt sites.

Název v anglickém jazyce

The effect of the nanoscale intimacy of platinum and acid centres on the hydroisomerization of short-chain alkanes

Popis výsledku anglicky

This study analyses the effect of the nanoscale intimacy of Pt metal and Brønsted acid sites on the hydroisomerization of n-pentane and n-hexane using a series of zeolite/binder composite catalysts with Pt located outside or inside of the zeolite crystal and with Pt dispersed in the zeolite crystal and its vicinity on the binder. Analysis of the conversions of n-pentane and n-hexane to branched isomers and Cn≤4 byproducts under the relevant conditions of the process showed that the highest activity is obtained for catalysts with high proximity of acid and Pt sites dispersed in the zeolite crystal together with Pt on the binder surrounding the zeolite crystals. Such an arrangement allows the hydrogenation/dehydrogenation of alkanes in close proximity to the Brønsted sites, allowing the full functionality of acid sites and limiting the diffusion of intermediate alkenes between Pt sites.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

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

1873-3875

Svazek periodika

634

Číslo periodika v rámci svazku

MAR 2022

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

118535

Kód UT WoS článku

000804578300004

EID výsledku v databázi Scopus

2-s2.0-85124733935