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Oxidative dehydrogenation (ODH) of ethane with O2 as oxidant on selected transition metal-loaded zeolites

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Abstract.
Ni-, Cu-, and Fe-loaded acidic and basic Y zeolites were synthesized, and their catalytic properties for oxidative dehydrogenation of ethane (ODHE) to ethylene were characterized. Acidic Ni-loaded Y zeolite
exhibits an ethylene productivity of up to 1:08 gC2H4 gcat-1 h-1 with a selectivity of 75%. Acidic Cu- and
Fe-loaded Y zeolites have an ethylene productivity of up to 0:37 gC2H4 gcat-1 h-1 and a selectivity of
50%. For the same metal, the acidity of the zeolite favors both ODHE productivity and ethylene selectivity.
Extended X-ray absorption fine structure (EXAFS) studies show that Ni, present in particles on Ni/HY during the ODHE catalytic process, contains both Ni–Ni and Ni–O bonds, and that the ratio of oxidized Ni versus metallic Ni increases with the temperature. The insights these studies provide into the ODHE reaction mechanism are discussed.

Keywords:
Oxidative dehydrogenation
Ethane
Ethylene productivity and selectivity
Transition metal Y Zeolite

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Informasi Detail

Judul Seri

Journal of Catalysis

No. Panggil

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Penerbit

London : Elsevier Inc.., 2009

Deskripsi Fisik

Journal of Catalysis 265 (2009) 54–62

Bahasa

English

ISBN/ISSN

00219517

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA

Info Detail Spesifik

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Pernyataan Tanggungjawab

agus

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