Skeletal isomerization of n-heptane with highly selective Pt/H3PW12O40/SBA–15 trifunctional catalysts

N. de la Fuente; J. A. Wang; L. F. Chen; J. González; J. Salmones; J. L. Contreras; J. Navarrete

doi:10.1016/j.catcom.2017.08.030

Skeletal isomerization of n-heptane with highly selective Pt/H₃PW₁₂O₄₀/SBA–15 trifunctional catalysts

N. de la Fuente, J. A. Wang, L. F. Chen, J. González, J. Salmones, J. L. Contreras, J. Navarrete

Escuela Superior de Ingeniería Química e Industrias Extractivas (ESIQIE)

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

For the first time, highly selective Pt/H₃PW₁₂O₄₀/SBA–15 trifunctional catalysts were evaluated for n-heptane hydroisomerization. Both Lewis (L) and Brønsted (B) acid sites were present in these catalysts. Reduction treatment led to heteropolyacid dispersion better and Pt nanoparticles smaller. With the best 1wt%Pt/20wt%H₃PW₁₂O₄₀/SBA–15 catalyst, 100% isomerization selectivity and 56.74% n-heptane conversion were obtained at 320 °C. Among the products, the dibranched isomers concentration faction was > 50% and 2,2-dimethylpentane was predominant. Pt/H₃PW₁₂O₄₀/SBA–15 catalysts with Pt nanocrystals, proper acidity strength and a balanced ratio of B/L acid sites, and highly ordered large mesopores were chiefly responsible for the high isomerization selectivity.

Original language	English
Pages (from-to)	93-97
Number of pages	5
Journal	Catalysis Communications
Volume	102
DOIs	https://doi.org/10.1016/j.catcom.2017.08.030
State	Published - 2017

Keywords

Heteropolyacid
Isomerization
SBA-15
Trifunctional catalyst
n-Heptane

Access to Document

10.1016/j.catcom.2017.08.030

Cite this

@article{6a2624714408451ea4e979ff676aecc5,

title = "Skeletal isomerization of n-heptane with highly selective Pt/H3PW12O40/SBA–15 trifunctional catalysts",

abstract = "For the first time, highly selective Pt/H3PW12O40/SBA–15 trifunctional catalysts were evaluated for n-heptane hydroisomerization. Both Lewis (L) and Br{\o}nsted (B) acid sites were present in these catalysts. Reduction treatment led to heteropolyacid dispersion better and Pt nanoparticles smaller. With the best 1wt%Pt/20wt%H3PW12O40/SBA–15 catalyst, 100% isomerization selectivity and 56.74% n-heptane conversion were obtained at 320 °C. Among the products, the dibranched isomers concentration faction was > 50% and 2,2-dimethylpentane was predominant. Pt/H3PW12O40/SBA–15 catalysts with Pt nanocrystals, proper acidity strength and a balanced ratio of B/L acid sites, and highly ordered large mesopores were chiefly responsible for the high isomerization selectivity.",

keywords = "Heteropolyacid, Isomerization, SBA-15, Trifunctional catalyst, n-Heptane",

author = "{de la Fuente}, N. and Wang, {J. A.} and Chen, {L. F.} and J. Gonz{\'a}lez and J. Salmones and Contreras, {J. L.} and J. Navarrete",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

doi = "10.1016/j.catcom.2017.08.030",

language = "Ingl{\'e}s",

volume = "102",

pages = "93--97",

journal = "Catalysis Communications",

issn = "1566-7367",

}

TY - JOUR

T1 - Skeletal isomerization of n-heptane with highly selective Pt/H3PW12O40/SBA–15 trifunctional catalysts

AU - de la Fuente, N.

AU - Wang, J. A.

AU - Chen, L. F.

AU - González, J.

AU - Salmones, J.

AU - Contreras, J. L.

AU - Navarrete, J.

PY - 2017

Y1 - 2017

N2 - For the first time, highly selective Pt/H3PW12O40/SBA–15 trifunctional catalysts were evaluated for n-heptane hydroisomerization. Both Lewis (L) and Brønsted (B) acid sites were present in these catalysts. Reduction treatment led to heteropolyacid dispersion better and Pt nanoparticles smaller. With the best 1wt%Pt/20wt%H3PW12O40/SBA–15 catalyst, 100% isomerization selectivity and 56.74% n-heptane conversion were obtained at 320 °C. Among the products, the dibranched isomers concentration faction was > 50% and 2,2-dimethylpentane was predominant. Pt/H3PW12O40/SBA–15 catalysts with Pt nanocrystals, proper acidity strength and a balanced ratio of B/L acid sites, and highly ordered large mesopores were chiefly responsible for the high isomerization selectivity.

AB - For the first time, highly selective Pt/H3PW12O40/SBA–15 trifunctional catalysts were evaluated for n-heptane hydroisomerization. Both Lewis (L) and Brønsted (B) acid sites were present in these catalysts. Reduction treatment led to heteropolyacid dispersion better and Pt nanoparticles smaller. With the best 1wt%Pt/20wt%H3PW12O40/SBA–15 catalyst, 100% isomerization selectivity and 56.74% n-heptane conversion were obtained at 320 °C. Among the products, the dibranched isomers concentration faction was > 50% and 2,2-dimethylpentane was predominant. Pt/H3PW12O40/SBA–15 catalysts with Pt nanocrystals, proper acidity strength and a balanced ratio of B/L acid sites, and highly ordered large mesopores were chiefly responsible for the high isomerization selectivity.

KW - Heteropolyacid

KW - Isomerization

KW - SBA-15

KW - Trifunctional catalyst

KW - n-Heptane

UR - http://www.scopus.com/inward/record.url?scp=85028940327&partnerID=8YFLogxK

U2 - 10.1016/j.catcom.2017.08.030

DO - 10.1016/j.catcom.2017.08.030

M3 - Artículo

SN - 1566-7367

VL - 102

SP - 93

EP - 97

JO - Catalysis Communications

JF - Catalysis Communications

ER -

Skeletal isomerization of n-heptane with highly selective Pt/H₃PW₁₂O₄₀/SBA–15 trifunctional catalysts

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this