Peranan spesies kromium aktif pada penyokong yang berbeza dalam tindak balas penyahhidrogenan gas propana

Translated title of the contribution: Role of active chromium species on different support for dehydrogenation of propane

Wan Isahak Wan Nor Roslam, Zatil Amali Che Ramli, Ibdal Satar, Mohamed Wahab Mohamed Hisham, Mohd. Ambar Yarmo

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Dehydrogenation of propane (DHP) was studied over a series of Cr2O3–Al2O3and Cr2O3-SiO2catalysts, prepared by incipient wetness impregnation and sol gel (SG) method, respectively, to gain a better understanding of the nature and distribution of chromium (Cr) species and their catalytic function. To this end, the catalysts were characterized by N2-physisorption and X-ray diffraction (XRD). N2-physisorption analysis of Cr2O3-SiO2showed the relatively higher surface area of 391.1 m2/g, compared with Cr2O3–Al2O3of 224.3 m2/g. The combination method of sol gel and sonothermal also produced smaller particles size of catalyst with higher microporosity of 23.5% and smaller pores size of 6 nm. The good surface properties of Cr2O3-SiO2enabled the high conversion of propane of 55% at 550 °C. At higher temperature of 600 °C, the Cr species might be reduced into lower oxidation state and inhibit the catalytic behavior to produce hydrogen.

Original languageMalay
Pages (from-to)119-126
Number of pages8
JournalMalaysian Journal of Analytical Sciences
Volume21
Issue number1
DOIs
Publication statusPublished - 1 Feb 2017

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Propane
Physisorption
Chromium
Dehydrogenation
Microporosity
Catalysts
Impregnation
Sol-gel process
Pore size
Sol-gels
Surface properties
Hydrogen
Particle size
X ray diffraction
Oxidation
Temperature

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Peranan spesies kromium aktif pada penyokong yang berbeza dalam tindak balas penyahhidrogenan gas propana. / Wan Nor Roslam, Wan Isahak; Ramli, Zatil Amali Che; Satar, Ibdal; Hisham, Mohamed Wahab Mohamed; Yarmo, Mohd. Ambar.

In: Malaysian Journal of Analytical Sciences, Vol. 21, No. 1, 01.02.2017, p. 119-126.

Research output: Contribution to journalArticle

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