Oxidative coupling of methane using non-stoichiometric lead hydroxyapatite catalyst mixtures

[Display omitted] ► Mixture catalysts of non-stoichiometric Pb hydroxyapatite were obtained. ► The catalysts were prepared by calcining Pb chloro-hydroxyapatites at 800°C. ► The OCM activity changed according to the Cl content of precursor apatite. ► Higher C2 selectivity was obtained at a catalyst...

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Bibliographic Details
Published in:Fuel (Guildford) 2012-04, Vol.94, p.433-439
Main Authors: Park, Jai Hyun, Lee, Dae-Won, Im, Sung-Woo, Lee, Yong Hee, Suh, Dong-Jin, Jun, Ki-Won, Lee, Kwan-Young
Format: Article
Language:English
Subjects:
Applied sciences
Catalysts
Chlorine
Energy
Energy. Thermal use of fuels
Ethylene
Exact sciences and technology
Fuels
Hydroxyapatite
Inductively coupled plasma
Lead hydroxyapatite
Methane
Natural gas
Oxidative coupling of methane
Partial oxidation
Selectivity
Spectroscopy
X-rays
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Summary:[Display omitted] ► Mixture catalysts of non-stoichiometric Pb hydroxyapatite were obtained. ► The catalysts were prepared by calcining Pb chloro-hydroxyapatites at 800°C. ► The OCM activity changed according to the Cl content of precursor apatite. ► Higher C2 selectivity was obtained at a catalyst of higher surface basicity. ► The surface basicity was associated with the average coordination of lattice Pb2+. Lead hydroxyapatite (PbxCa10−x(PO4)6(OH)2, 0
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2011.08.056