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Epoxidation of propylene with H2 and O2 in the explosive regime in a packed-bed catalytic membrane reactor

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Abstract.
The vapor-phase epoxidation of propylene with H2 and O2 over a highly dispersed Au/TS-1 catalyst was
carried out in a packed-bed catalytic membrane reactor. The membrane reactor allowed the use of high
concentrations of H2 and O2 (40% each) that were well within the explosive regime, and the production
rate of propylene oxide was improved by 100–200% compared with that from a conventional packedbed
reactor. At 180 ◦C, the C3H6 conversion was 10% and the PO selectivity was 80%, corresponding
to a space–time yield of 150 gPO kg−1 cat h−1, whereas at 212 ◦C, the yield increased to 200 gPO kg−1
cat h−1. The kinetic dependency, rPO = k (H2)0.53 (O2)0.26 (C3H6)0.18, obtained free from mass transport and
heat transfer limitations at these high concentrations was in good agreement with that reported at low
concentrations.

Keywords:
Membrane reactor
H2/O2 mixtures
Propylene oxide
Au/TS-1
Nanosil membrane

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Informasi Detail

Judul Seri

Journal of Catalysis

No. Panggil

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Penerbit

London : Elsevier Inc.., 2008

Deskripsi Fisik

Journal of Catalysis 257 (2008) 1–4

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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