Sulfur tolerance of Pt/mordenites for benzene hydrogenation. Do Bronsted acid sites participate in hydrogenation?

L. Simon, J.G. van Ommen, A. Jentys, J.A. Lercher

Research output: Contribution to journalArticleAcademicpeer-review

58 Citations (Scopus)

Abstract

The comparison of Pt electronic properties studied by in situ XANES and the kinetic study of benzene hydrogenation strongly suggests that the hydrogenation of benzene on Pt/mordenites occurs along two parallel reaction pathways. The routes proposed include (i) the monofunctional hydrogenation of benzene on the metal itself and (ii) the hydrogenation of Brønsted acid bound benzene using hydrogen dissociated on the close metal surface. In the presence of sulfur containing compounds, the activity of solely metal catalyzed route ceases, while the route involving Brønsted acid sites is more sulfur tolerant. The activity and sulfur tolerance of these catalysts for benzene hydrogenation depends upon the vicinity between metallic and Brønsted acidic sites and the concentration of the Brønsted acid sites. Increasing hydrogen partial pressure increases the rates of the reaction and the sulfur tolerance of the catalysts.
Original languageUndefined
Pages (from-to)105-112
Number of pages8
JournalCatalysis today
Volume73
Issue number1-2
DOIs
Publication statusPublished - 2002

Keywords

  • Noble metal
  • Sulfur tolerant
  • Benzene hydrogenation
  • IR-74812
  • Acid sites
  • METIS-205942

Cite this

Simon, L. ; van Ommen, J.G. ; Jentys, A. ; Lercher, J.A. / Sulfur tolerance of Pt/mordenites for benzene hydrogenation. Do Bronsted acid sites participate in hydrogenation?. In: Catalysis today. 2002 ; Vol. 73, No. 1-2. pp. 105-112.
@article{9c2b6803ff3f4d7d87a0dec62c12a9c7,
title = "Sulfur tolerance of Pt/mordenites for benzene hydrogenation. Do Bronsted acid sites participate in hydrogenation?",
abstract = "The comparison of Pt electronic properties studied by in situ XANES and the kinetic study of benzene hydrogenation strongly suggests that the hydrogenation of benzene on Pt/mordenites occurs along two parallel reaction pathways. The routes proposed include (i) the monofunctional hydrogenation of benzene on the metal itself and (ii) the hydrogenation of Br{\o}nsted acid bound benzene using hydrogen dissociated on the close metal surface. In the presence of sulfur containing compounds, the activity of solely metal catalyzed route ceases, while the route involving Br{\o}nsted acid sites is more sulfur tolerant. The activity and sulfur tolerance of these catalysts for benzene hydrogenation depends upon the vicinity between metallic and Br{\o}nsted acidic sites and the concentration of the Br{\o}nsted acid sites. Increasing hydrogen partial pressure increases the rates of the reaction and the sulfur tolerance of the catalysts.",
keywords = "Noble metal, Sulfur tolerant, Benzene hydrogenation, IR-74812, Acid sites, METIS-205942",
author = "L. Simon and {van Ommen}, J.G. and A. Jentys and J.A. Lercher",
year = "2002",
doi = "10.1016/S0920-5861(01)00502-8",
language = "Undefined",
volume = "73",
pages = "105--112",
journal = "Catalysis today",
issn = "0920-5861",
publisher = "Elsevier",
number = "1-2",

}

Sulfur tolerance of Pt/mordenites for benzene hydrogenation. Do Bronsted acid sites participate in hydrogenation? / Simon, L.; van Ommen, J.G.; Jentys, A.; Lercher, J.A.

In: Catalysis today, Vol. 73, No. 1-2, 2002, p. 105-112.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Sulfur tolerance of Pt/mordenites for benzene hydrogenation. Do Bronsted acid sites participate in hydrogenation?

AU - Simon, L.

AU - van Ommen, J.G.

AU - Jentys, A.

AU - Lercher, J.A.

PY - 2002

Y1 - 2002

N2 - The comparison of Pt electronic properties studied by in situ XANES and the kinetic study of benzene hydrogenation strongly suggests that the hydrogenation of benzene on Pt/mordenites occurs along two parallel reaction pathways. The routes proposed include (i) the monofunctional hydrogenation of benzene on the metal itself and (ii) the hydrogenation of Brønsted acid bound benzene using hydrogen dissociated on the close metal surface. In the presence of sulfur containing compounds, the activity of solely metal catalyzed route ceases, while the route involving Brønsted acid sites is more sulfur tolerant. The activity and sulfur tolerance of these catalysts for benzene hydrogenation depends upon the vicinity between metallic and Brønsted acidic sites and the concentration of the Brønsted acid sites. Increasing hydrogen partial pressure increases the rates of the reaction and the sulfur tolerance of the catalysts.

AB - The comparison of Pt electronic properties studied by in situ XANES and the kinetic study of benzene hydrogenation strongly suggests that the hydrogenation of benzene on Pt/mordenites occurs along two parallel reaction pathways. The routes proposed include (i) the monofunctional hydrogenation of benzene on the metal itself and (ii) the hydrogenation of Brønsted acid bound benzene using hydrogen dissociated on the close metal surface. In the presence of sulfur containing compounds, the activity of solely metal catalyzed route ceases, while the route involving Brønsted acid sites is more sulfur tolerant. The activity and sulfur tolerance of these catalysts for benzene hydrogenation depends upon the vicinity between metallic and Brønsted acidic sites and the concentration of the Brønsted acid sites. Increasing hydrogen partial pressure increases the rates of the reaction and the sulfur tolerance of the catalysts.

KW - Noble metal

KW - Sulfur tolerant

KW - Benzene hydrogenation

KW - IR-74812

KW - Acid sites

KW - METIS-205942

U2 - 10.1016/S0920-5861(01)00502-8

DO - 10.1016/S0920-5861(01)00502-8

M3 - Article

VL - 73

SP - 105

EP - 112

JO - Catalysis today

JF - Catalysis today

SN - 0920-5861

IS - 1-2

ER -