Performance of Pd-B/SiO2 catalyst in hydrogenation of sunflower oil

A. Alshaibani, Zahira Yaakob

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

An investigation study for conversion and trans-isomerization selectivity of sunflower oil hydrogenation on Pd/SiO2 and Pd-B/SiO2 catalysts was performed. The Pd/SiO2 catalyst was prepared by wet impregnation, then a chemical reduction was performed on Pd/SiO2 to produce Pd-B/SiO2 catalyst. Both catalysts were characterized by Brunauer-Emmett-Teller surface area analysis, X-ray powder diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy and transmission electron microscopy. The chemically reduced palladium catalyst (Pd-B/SiO2) showed different properties than Pd/SiO2 catalyst. Hydrogenation of sunflower oil was performed on both Pd/SiO2 and Pd-B/SiO2 catalysts at 383 K, hydrogen pressure of 500 kPa and agitation of 1450 rpm for 1 h. The Pd-B/SiO2 catalyst exhibited distinctive behaviour in terms of conversion and trans-isomerization selectivity. It achieved around a 12.8 % higher conversion and a 35 % lower tendency to form trans-fatty acids than Pd/SiO2. Furthermore, Pd-B/SiO2 exhibited higher overall activity than the Escat 1351 commercial catalyst and some other reported palladium catalysts. The chemical reduction for Pd/SiO2 catalyst enhances the catalyst activity and trans-isomerization selectivity. The chemical reduction of palladium supported catalyst using potassium borohydride has a noticeable effects on the catalyst morphology, conversion and tendency to form trans-fatty acids.

Original languageEnglish
Pages (from-to)630-634
Number of pages5
JournalAsian Journal of Chemistry
Volume27
Issue number2
DOIs
Publication statusPublished - 2015

Fingerprint

Hydrogenation
Catalysts
Palladium
Isomerization
Trans Fatty Acids
sunflower seed oil
Catalyst selectivity
Catalyst supports
Impregnation
X ray powder diffraction
Hydrogen
Catalyst activity
Transmission electron microscopy
Scanning electron microscopy

Keywords

  • Conversion
  • Overall catalyst activity
  • Trans-Isomerization selectivity

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Performance of Pd-B/SiO2 catalyst in hydrogenation of sunflower oil. / Alshaibani, A.; Yaakob, Zahira.

In: Asian Journal of Chemistry, Vol. 27, No. 2, 2015, p. 630-634.

Research output: Contribution to journalArticle

@article{c76cb4dc429a49108c9c99bebc8a2f81,
title = "Performance of Pd-B/SiO2 catalyst in hydrogenation of sunflower oil",
abstract = "An investigation study for conversion and trans-isomerization selectivity of sunflower oil hydrogenation on Pd/SiO2 and Pd-B/SiO2 catalysts was performed. The Pd/SiO2 catalyst was prepared by wet impregnation, then a chemical reduction was performed on Pd/SiO2 to produce Pd-B/SiO2 catalyst. Both catalysts were characterized by Brunauer-Emmett-Teller surface area analysis, X-ray powder diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy and transmission electron microscopy. The chemically reduced palladium catalyst (Pd-B/SiO2) showed different properties than Pd/SiO2 catalyst. Hydrogenation of sunflower oil was performed on both Pd/SiO2 and Pd-B/SiO2 catalysts at 383 K, hydrogen pressure of 500 kPa and agitation of 1450 rpm for 1 h. The Pd-B/SiO2 catalyst exhibited distinctive behaviour in terms of conversion and trans-isomerization selectivity. It achieved around a 12.8 {\%} higher conversion and a 35 {\%} lower tendency to form trans-fatty acids than Pd/SiO2. Furthermore, Pd-B/SiO2 exhibited higher overall activity than the Escat 1351 commercial catalyst and some other reported palladium catalysts. The chemical reduction for Pd/SiO2 catalyst enhances the catalyst activity and trans-isomerization selectivity. The chemical reduction of palladium supported catalyst using potassium borohydride has a noticeable effects on the catalyst morphology, conversion and tendency to form trans-fatty acids.",
keywords = "Conversion, Overall catalyst activity, Trans-Isomerization selectivity",
author = "A. Alshaibani and Zahira Yaakob",
year = "2015",
doi = "10.14233/ajchem.2015.17096",
language = "English",
volume = "27",
pages = "630--634",
journal = "Asian Journal of Chemistry",
issn = "0970-7077",
publisher = "Chemical Publishing Co.",
number = "2",

}

TY - JOUR

T1 - Performance of Pd-B/SiO2 catalyst in hydrogenation of sunflower oil

AU - Alshaibani, A.

AU - Yaakob, Zahira

PY - 2015

Y1 - 2015

N2 - An investigation study for conversion and trans-isomerization selectivity of sunflower oil hydrogenation on Pd/SiO2 and Pd-B/SiO2 catalysts was performed. The Pd/SiO2 catalyst was prepared by wet impregnation, then a chemical reduction was performed on Pd/SiO2 to produce Pd-B/SiO2 catalyst. Both catalysts were characterized by Brunauer-Emmett-Teller surface area analysis, X-ray powder diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy and transmission electron microscopy. The chemically reduced palladium catalyst (Pd-B/SiO2) showed different properties than Pd/SiO2 catalyst. Hydrogenation of sunflower oil was performed on both Pd/SiO2 and Pd-B/SiO2 catalysts at 383 K, hydrogen pressure of 500 kPa and agitation of 1450 rpm for 1 h. The Pd-B/SiO2 catalyst exhibited distinctive behaviour in terms of conversion and trans-isomerization selectivity. It achieved around a 12.8 % higher conversion and a 35 % lower tendency to form trans-fatty acids than Pd/SiO2. Furthermore, Pd-B/SiO2 exhibited higher overall activity than the Escat 1351 commercial catalyst and some other reported palladium catalysts. The chemical reduction for Pd/SiO2 catalyst enhances the catalyst activity and trans-isomerization selectivity. The chemical reduction of palladium supported catalyst using potassium borohydride has a noticeable effects on the catalyst morphology, conversion and tendency to form trans-fatty acids.

AB - An investigation study for conversion and trans-isomerization selectivity of sunflower oil hydrogenation on Pd/SiO2 and Pd-B/SiO2 catalysts was performed. The Pd/SiO2 catalyst was prepared by wet impregnation, then a chemical reduction was performed on Pd/SiO2 to produce Pd-B/SiO2 catalyst. Both catalysts were characterized by Brunauer-Emmett-Teller surface area analysis, X-ray powder diffraction, scanning electron microscopy, energy-dispersive X-ray spectroscopy and transmission electron microscopy. The chemically reduced palladium catalyst (Pd-B/SiO2) showed different properties than Pd/SiO2 catalyst. Hydrogenation of sunflower oil was performed on both Pd/SiO2 and Pd-B/SiO2 catalysts at 383 K, hydrogen pressure of 500 kPa and agitation of 1450 rpm for 1 h. The Pd-B/SiO2 catalyst exhibited distinctive behaviour in terms of conversion and trans-isomerization selectivity. It achieved around a 12.8 % higher conversion and a 35 % lower tendency to form trans-fatty acids than Pd/SiO2. Furthermore, Pd-B/SiO2 exhibited higher overall activity than the Escat 1351 commercial catalyst and some other reported palladium catalysts. The chemical reduction for Pd/SiO2 catalyst enhances the catalyst activity and trans-isomerization selectivity. The chemical reduction of palladium supported catalyst using potassium borohydride has a noticeable effects on the catalyst morphology, conversion and tendency to form trans-fatty acids.

KW - Conversion

KW - Overall catalyst activity

KW - Trans-Isomerization selectivity

UR - http://www.scopus.com/inward/record.url?scp=84921334148&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84921334148&partnerID=8YFLogxK

U2 - 10.14233/ajchem.2015.17096

DO - 10.14233/ajchem.2015.17096

M3 - Article

AN - SCOPUS:84921334148

VL - 27

SP - 630

EP - 634

JO - Asian Journal of Chemistry

JF - Asian Journal of Chemistry

SN - 0970-7077

IS - 2

ER -