Oxidative coupling of methane over alkali metal oxide promoted La2O3/BaCO3 catalysts

Ning-Bew Wong; Kam-Chung Tin; Keung Lau; Xian-Qing Qiu; Qi-Ming Zhu

doi:10.1002/(SICI)1097-4660(199604)65:4<351::AID-JCTB450>3.0.CO;2-L

Oxidative coupling of methane over alkali metal oxide promoted La₂O₃/BaCO₃ catalysts

Ning-Bew Wong
, Kam-Chung Tin
, Keung Lau
, Xian-Qing Qiu
, Qi-Ming Zhu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

5 Citations (Scopus)

Abstract

The oxidative coupling of methane (OCM) over various alkali metal oxide promoted La₂O₃/BaCO₃ catalysts and the effects of Na₂O content on the performance of Na₂O-La₂O₃/BaCO₃ catalysts have been studied. It was found that Na₂O promoted La₂O₃/BaCO₃ catalysts had the advantages of high CH₄ conversion, C₂ selectivity and C₂H₄/C₂H₆ ratio. Na₂O might affect the properties of the catalysts through electronic and geometric effects. The highest C₂ yield (19.0-20.6%) was obtained with Na₂O-9 wt% La₂O₃/BaCO₃ catalysts of 1.0-3.0% Na₂O. The effects of reaction conditions on OCM over 3 wt% Na₂O-9 wt% La₂O₃/BaCO₃ catalysts have also been investigated. The catalysts were characterized by BET, TPD and XRD. TPD studies on 3 wt% Na₂O-9 wt% La₂O₃/BaCO₃ catalysts demonstrated that CO₂, CH₄ and O₂ could be adsorbed strongly on the catalyst. This might be related to the activation of CH₄ and the formation and regeneration of active oxygen species.

Original language	English
Pages (from-to)	351-354
Journal	Journal of Chemical Technology and Biotechnology
Volume	65
Issue number	4
DOIs	https://doi.org/10.1002/(SICI)1097-4660(199604)65:4<351::AID-JCTB450>3.0.CO;2-L
Publication status	Published - Apr 1996

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Methane
OCM
Oxidative coupling

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@article{b19853f14dc741a283c472c24a4ebc10,

title = "Oxidative coupling of methane over alkali metal oxide promoted La2O3/BaCO3 catalysts",

abstract = "The oxidative coupling of methane (OCM) over various alkali metal oxide promoted La2O3/BaCO3 catalysts and the effects of Na2O content on the performance of Na2O-La2O3/BaCO3 catalysts have been studied. It was found that Na2O promoted La2O3/BaCO3 catalysts had the advantages of high CH4 conversion, C2 selectivity and C2H4/C2H6 ratio. Na2O might affect the properties of the catalysts through electronic and geometric effects. The highest C2 yield (19.0-20.6\%) was obtained with Na2O-9 wt\% La2O3/BaCO3 catalysts of 1.0-3.0\% Na2O. The effects of reaction conditions on OCM over 3 wt\% Na2O-9 wt\% La2O3/BaCO3 catalysts have also been investigated. The catalysts were characterized by BET, TPD and XRD. TPD studies on 3 wt\% Na2O-9 wt\% La2O3/BaCO3 catalysts demonstrated that CO2, CH4 and O2 could be adsorbed strongly on the catalyst. This might be related to the activation of CH4 and the formation and regeneration of active oxygen species. {\textcopyright} 1996 SCI",

keywords = "Methane, OCM, Oxidative coupling",

author = "Ning-Bew Wong and Kam-Chung Tin and Keung Lau and Xian-Qing Qiu and Qi-Ming Zhu",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

year = "1996",

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language = "English",

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journal = "Journal of Chemical Technology and Biotechnology",

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TY - JOUR

T1 - Oxidative coupling of methane over alkali metal oxide promoted La2O3/BaCO3 catalysts

AU - Wong, Ning-Bew

AU - Tin, Kam-Chung

AU - Lau, Keung

AU - Qiu, Xian-Qing

AU - Zhu, Qi-Ming

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 1996/4

Y1 - 1996/4

N2 - The oxidative coupling of methane (OCM) over various alkali metal oxide promoted La2O3/BaCO3 catalysts and the effects of Na2O content on the performance of Na2O-La2O3/BaCO3 catalysts have been studied. It was found that Na2O promoted La2O3/BaCO3 catalysts had the advantages of high CH4 conversion, C2 selectivity and C2H4/C2H6 ratio. Na2O might affect the properties of the catalysts through electronic and geometric effects. The highest C2 yield (19.0-20.6%) was obtained with Na2O-9 wt% La2O3/BaCO3 catalysts of 1.0-3.0% Na2O. The effects of reaction conditions on OCM over 3 wt% Na2O-9 wt% La2O3/BaCO3 catalysts have also been investigated. The catalysts were characterized by BET, TPD and XRD. TPD studies on 3 wt% Na2O-9 wt% La2O3/BaCO3 catalysts demonstrated that CO2, CH4 and O2 could be adsorbed strongly on the catalyst. This might be related to the activation of CH4 and the formation and regeneration of active oxygen species. © 1996 SCI

AB - The oxidative coupling of methane (OCM) over various alkali metal oxide promoted La2O3/BaCO3 catalysts and the effects of Na2O content on the performance of Na2O-La2O3/BaCO3 catalysts have been studied. It was found that Na2O promoted La2O3/BaCO3 catalysts had the advantages of high CH4 conversion, C2 selectivity and C2H4/C2H6 ratio. Na2O might affect the properties of the catalysts through electronic and geometric effects. The highest C2 yield (19.0-20.6%) was obtained with Na2O-9 wt% La2O3/BaCO3 catalysts of 1.0-3.0% Na2O. The effects of reaction conditions on OCM over 3 wt% Na2O-9 wt% La2O3/BaCO3 catalysts have also been investigated. The catalysts were characterized by BET, TPD and XRD. TPD studies on 3 wt% Na2O-9 wt% La2O3/BaCO3 catalysts demonstrated that CO2, CH4 and O2 could be adsorbed strongly on the catalyst. This might be related to the activation of CH4 and the formation and regeneration of active oxygen species. © 1996 SCI

KW - Methane

KW - OCM

KW - Oxidative coupling

UR - https://www.scopus.com/pages/publications/0030130703

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0030130703&origin=recordpage

U2 - 10.1002/(SICI)1097-4660(199604)65:4<351::AID-JCTB450>3.0.CO;2-L

DO - 10.1002/(SICI)1097-4660(199604)65:4<351::AID-JCTB450>3.0.CO;2-L

M3 - RGC 21 - Publication in refereed journal

SN - 0268-2575

VL - 65

SP - 351

EP - 354

JO - Journal of Chemical Technology and Biotechnology

JF - Journal of Chemical Technology and Biotechnology

IS - 4

ER -