Details
| Original language | English |
|---|---|
| Pages (from-to) | 1211-1214 |
| Number of pages | 4 |
| Journal | Catalysis communications |
| Volume | 11 |
| Issue number | 15 |
| Early online date | 17 Jul 2010 |
| Publication status | Published - 25 Sept 2010 |
Abstract
The role of lattice and adsorbed oxygen species in propane dehydrogenation in a perovskite hollow fiber membrane reactor containing a Pt-Sn dehydrogenation catalyst was elucidated by transient analysis of products with a sub-millisecond time resolution. Propane is mainly dehydrogenated non-oxidatively to propene and hydrogen over the catalyst, while lattice oxygen of the perovskite oxidizes preferentially hydrogen to water. For achieving high propene selectivity at high propane conversions, the formation of gas phase O2 on the shell side of the membrane reactor should be avoided. Otherwise, oxygen species adsorbed over the Pt-Sn catalyst participate in non-selective C3H8/C3H6 transformations to C2H4 and COx.
Keywords
- Mechanism, Membrane reactor, Oxidative dehydrogenation, Oxygen transporting membrane, Perovskites, Propane dehydrogenation, Pt catalyst, TAP reactor
ASJC Scopus subject areas
- Chemical Engineering(all)
- Catalysis
- Chemistry(all)
- General Chemistry
- Chemical Engineering(all)
- Process Chemistry and Technology
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In: Catalysis communications, Vol. 11, No. 15, 25.09.2010, p. 1211-1214.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Dehydrogenation of propane with selective hydrogen combustion
T2 - A mechanistic study by transient analysis of products
AU - Czuprat, Oliver
AU - Caro, Jürgen
AU - Kondratenko, Vita A.
AU - Kondratenko, Evgenii V.
PY - 2010/9/25
Y1 - 2010/9/25
N2 - The role of lattice and adsorbed oxygen species in propane dehydrogenation in a perovskite hollow fiber membrane reactor containing a Pt-Sn dehydrogenation catalyst was elucidated by transient analysis of products with a sub-millisecond time resolution. Propane is mainly dehydrogenated non-oxidatively to propene and hydrogen over the catalyst, while lattice oxygen of the perovskite oxidizes preferentially hydrogen to water. For achieving high propene selectivity at high propane conversions, the formation of gas phase O2 on the shell side of the membrane reactor should be avoided. Otherwise, oxygen species adsorbed over the Pt-Sn catalyst participate in non-selective C3H8/C3H6 transformations to C2H4 and COx.
AB - The role of lattice and adsorbed oxygen species in propane dehydrogenation in a perovskite hollow fiber membrane reactor containing a Pt-Sn dehydrogenation catalyst was elucidated by transient analysis of products with a sub-millisecond time resolution. Propane is mainly dehydrogenated non-oxidatively to propene and hydrogen over the catalyst, while lattice oxygen of the perovskite oxidizes preferentially hydrogen to water. For achieving high propene selectivity at high propane conversions, the formation of gas phase O2 on the shell side of the membrane reactor should be avoided. Otherwise, oxygen species adsorbed over the Pt-Sn catalyst participate in non-selective C3H8/C3H6 transformations to C2H4 and COx.
KW - Mechanism
KW - Membrane reactor
KW - Oxidative dehydrogenation
KW - Oxygen transporting membrane
KW - Perovskites
KW - Propane dehydrogenation
KW - Pt catalyst
KW - TAP reactor
UR - http://www.scopus.com/inward/record.url?scp=77955218199&partnerID=8YFLogxK
U2 - 10.1016/j.catcom.2010.07.009
DO - 10.1016/j.catcom.2010.07.009
M3 - Article
AN - SCOPUS:77955218199
VL - 11
SP - 1211
EP - 1214
JO - Catalysis communications
JF - Catalysis communications
SN - 1566-7367
IS - 15
ER -