Selective hydrogenation of mixed alkyne/alkene streams at elevated pressure over a palladium sulfide catalyst

Alan J. McCue*, Antonio Guerrero-Ruiz, Carolina Ramirez-Barria, Inmaculada Rodríguez-Ramos, James A. Anderson

*Corresponding author for this work

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The Pd4S phase of palladium sulfide is known to be a highly selective alkyne hydrogenation catalyst at atmospheric pressure. Results presented here demonstrate that high selectivity can be retained at the elevated pressures required in industrial application. For example, in a mixed acetylene/ethylene feed, 100% conversion of acetylene was attained with a selectivity to ethylene in excess of 80% at 18 bar pressure. Similarly, almost 85% selectivity can be obtained with mixed C3 feeds containing methyl acetylene, propadiene, propylene and propane at 18 bar pressure. Using a low loaded sample (0.1 wt% Pd) it was possible to estimate the TOF to be 27 s−1. High selectivity was related to the crystal structure of Pd4S with the unique spatial arrangement thought to favour Pd atoms acting in isolation from one another. Based on these results, it is proposed that this catalyst could be a potential replacement for PdAg alloys currently used by industry.

Original languageEnglish
Pages (from-to)40-52
Number of pages13
JournalJournal of Catalysis
Volume355
Early online date23 Sep 2017
DOIs
Publication statusPublished - 1 Nov 2017

Fingerprint

Acetylene
Alkynes
Palladium
Alkenes
Sulfides
alkynes
alkenes
Olefins
Hydrogenation
hydrogenation
sulfides
palladium
selectivity
acetylene
catalysts
Catalysts
Ethylene
Propane
ethylene
Atmospheric pressure

Keywords

  • Acetylene
  • High pressure
  • Methyl acetylene
  • Palladium sulfide
  • Propadiene
  • Selective hydrogenation

ASJC Scopus subject areas

  • Catalysis
  • Physical and Theoretical Chemistry

Cite this

Selective hydrogenation of mixed alkyne/alkene streams at elevated pressure over a palladium sulfide catalyst. / McCue, Alan J.; Guerrero-Ruiz, Antonio; Ramirez-Barria, Carolina; Rodríguez-Ramos, Inmaculada; Anderson, James A.

In: Journal of Catalysis, Vol. 355, 01.11.2017, p. 40-52.

Research output: Contribution to journalArticle

McCue, Alan J. ; Guerrero-Ruiz, Antonio ; Ramirez-Barria, Carolina ; Rodríguez-Ramos, Inmaculada ; Anderson, James A. / Selective hydrogenation of mixed alkyne/alkene streams at elevated pressure over a palladium sulfide catalyst. In: Journal of Catalysis. 2017 ; Vol. 355. pp. 40-52.
@article{77410d1c1bd24823b3c3776444df4dbf,
title = "Selective hydrogenation of mixed alkyne/alkene streams at elevated pressure over a palladium sulfide catalyst",
abstract = "The Pd4S phase of palladium sulfide is known to be a highly selective alkyne hydrogenation catalyst at atmospheric pressure. Results presented here demonstrate that high selectivity can be retained at the elevated pressures required in industrial application. For example, in a mixed acetylene/ethylene feed, 100{\%} conversion of acetylene was attained with a selectivity to ethylene in excess of 80{\%} at 18 bar pressure. Similarly, almost 85{\%} selectivity can be obtained with mixed C3 feeds containing methyl acetylene, propadiene, propylene and propane at 18 bar pressure. Using a low loaded sample (0.1 wt{\%} Pd) it was possible to estimate the TOF to be 27 s−1. High selectivity was related to the crystal structure of Pd4S with the unique spatial arrangement thought to favour Pd atoms acting in isolation from one another. Based on these results, it is proposed that this catalyst could be a potential replacement for PdAg alloys currently used by industry.",
keywords = "Acetylene, High pressure, Methyl acetylene, Palladium sulfide, Propadiene, Selective hydrogenation",
author = "McCue, {Alan J.} and Antonio Guerrero-Ruiz and Carolina Ramirez-Barria and Inmaculada Rodr{\'i}guez-Ramos and Anderson, {James A.}",
note = "The support of the Spanish Government (projects CTQ2014-52956-C3-2-R and CTQ2014-52956-C3-3-R) is recognized.",
year = "2017",
month = "11",
day = "1",
doi = "10.1016/j.jcat.2017.09.004",
language = "English",
volume = "355",
pages = "40--52",
journal = "Journal of Catalysis",
issn = "0021-9517",
publisher = "ACADEMIC PRESS INC ELSEVIER SCIENCE",

}

TY - JOUR

T1 - Selective hydrogenation of mixed alkyne/alkene streams at elevated pressure over a palladium sulfide catalyst

AU - McCue, Alan J.

AU - Guerrero-Ruiz, Antonio

AU - Ramirez-Barria, Carolina

AU - Rodríguez-Ramos, Inmaculada

AU - Anderson, James A.

N1 - The support of the Spanish Government (projects CTQ2014-52956-C3-2-R and CTQ2014-52956-C3-3-R) is recognized.

PY - 2017/11/1

Y1 - 2017/11/1

N2 - The Pd4S phase of palladium sulfide is known to be a highly selective alkyne hydrogenation catalyst at atmospheric pressure. Results presented here demonstrate that high selectivity can be retained at the elevated pressures required in industrial application. For example, in a mixed acetylene/ethylene feed, 100% conversion of acetylene was attained with a selectivity to ethylene in excess of 80% at 18 bar pressure. Similarly, almost 85% selectivity can be obtained with mixed C3 feeds containing methyl acetylene, propadiene, propylene and propane at 18 bar pressure. Using a low loaded sample (0.1 wt% Pd) it was possible to estimate the TOF to be 27 s−1. High selectivity was related to the crystal structure of Pd4S with the unique spatial arrangement thought to favour Pd atoms acting in isolation from one another. Based on these results, it is proposed that this catalyst could be a potential replacement for PdAg alloys currently used by industry.

AB - The Pd4S phase of palladium sulfide is known to be a highly selective alkyne hydrogenation catalyst at atmospheric pressure. Results presented here demonstrate that high selectivity can be retained at the elevated pressures required in industrial application. For example, in a mixed acetylene/ethylene feed, 100% conversion of acetylene was attained with a selectivity to ethylene in excess of 80% at 18 bar pressure. Similarly, almost 85% selectivity can be obtained with mixed C3 feeds containing methyl acetylene, propadiene, propylene and propane at 18 bar pressure. Using a low loaded sample (0.1 wt% Pd) it was possible to estimate the TOF to be 27 s−1. High selectivity was related to the crystal structure of Pd4S with the unique spatial arrangement thought to favour Pd atoms acting in isolation from one another. Based on these results, it is proposed that this catalyst could be a potential replacement for PdAg alloys currently used by industry.

KW - Acetylene

KW - High pressure

KW - Methyl acetylene

KW - Palladium sulfide

KW - Propadiene

KW - Selective hydrogenation

UR - http://www.scopus.com/inward/record.url?scp=85029706825&partnerID=8YFLogxK

U2 - 10.1016/j.jcat.2017.09.004

DO - 10.1016/j.jcat.2017.09.004

M3 - Article

VL - 355

SP - 40

EP - 52

JO - Journal of Catalysis

JF - Journal of Catalysis

SN - 0021-9517

ER -