Publication detail

The Effect of the Nanoscale Intimacy of Platinum and Acid Centres on the Hydroisomerization of Short-chain Alkanes

Year: 2022

Type of publication: článek v odborném periodiku

Name of source: Applied catalysis A: General

Publisher name: Elsevier Science BV

Place: Amsterdam

Page from-to: 118535

Titles:

Language	Name	Abstract	Keywords
cze	Vliv nanoměřítkové intimity platiny a kyselých center na hydroizomeraci alkanů s krátkým řetězcem	Tato práce analyzuje vliv nanorozměrové intimity platiny a Bronstedových kyselých míst na hydroizomerizaci n-pentanu a n-hexanu s využitím řady zeolitických katalyzátorů s platinou umístěnou uvnitř nebo vně zeolitové struktury.	hydroisomerizace; hydrokrakování; beta zeolit; platina; hexan; pentan
eng	The Effect of the Nanoscale Intimacy of Platinum and Acid Centres on the Hydroisomerization of Short-chain Alkanes	This study analyses the effect of the nanoscale intimacy of Pt metal and Bronsted 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 C-n <= 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 Bronsted sites, allowing the full functionality of acid sites and limiting the diffusion of intermediate alkenes between Pt sites.	hydroisomerization; hydrocracking; beta zeolite (*BEA); bifunctional catalysis; platinum; hexane; pentane

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