Oxidative coupling of methane using catalysts synthesized by solution combustion method

Ranjita Ghose; Hyun Tae Hwang; Arvind Varma

doi:10.1016/j.apcata.2012.11.029

Oxidative coupling of methane using catalysts synthesized by solution combustion method

Ranjita Ghose, Hyun Tae Hwang, Arvind Varma

Chemical and Materials Engineering

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

Solution combustion synthesis (SCS) is a one-step technique for the preparation of nanostructured complex metal oxides. In the present study, SCS was used for the synthesis of several promising oxidative coupling of methane (OCM) catalyst series with varying metal ratios: (a) Sr-Al complex oxides, (b) La₂O₃, (c) La-Sr-Al complex oxides and (d) Na ₂WO₄-Mn/SiO₂. The C₂ yield and ethylene/ethane ratio were measured for each catalyst over a wide range of temperatures. It was found that the double perovskite phase is active for OCM in the Sr-Al complex oxide series. The Na₂WO₄-Mn/SiO ₂ catalyst synthesized by SCS was stable and also showed high ethylene/ethane ratio ∼2 along with high C₂ yield ∼25%, which is among the highest value reported in the literature, indicating that SCS is a promising method to prepare OCM catalysts.

Original language	English
Pages (from-to)	147-154
Number of pages	8
Journal	Applied Catalysis A: General
Volume	452
DOIs	https://doi.org/10.1016/j.apcata.2012.11.029
State	Published - Feb 15 2013

Keywords

Complex oxide catalysts
Ethylene
Methane
Oxidative coupling
Solution combustion synthesis (SCS)

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

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10.1016/j.apcata.2012.11.029

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title = "Oxidative coupling of methane using catalysts synthesized by solution combustion method",

abstract = "Solution combustion synthesis (SCS) is a one-step technique for the preparation of nanostructured complex metal oxides. In the present study, SCS was used for the synthesis of several promising oxidative coupling of methane (OCM) catalyst series with varying metal ratios: (a) Sr-Al complex oxides, (b) La2O3, (c) La-Sr-Al complex oxides and (d) Na 2WO4-Mn/SiO2. The C2 yield and ethylene/ethane ratio were measured for each catalyst over a wide range of temperatures. It was found that the double perovskite phase is active for OCM in the Sr-Al complex oxide series. The Na2WO4-Mn/SiO 2 catalyst synthesized by SCS was stable and also showed high ethylene/ethane ratio ∼2 along with high C2 yield ∼25\%, which is among the highest value reported in the literature, indicating that SCS is a promising method to prepare OCM catalysts.",

keywords = "Complex oxide catalysts, Ethylene, Methane, Oxidative coupling, Solution combustion synthesis (SCS)",

author = "Ranjita Ghose and Hwang, \{Hyun Tae\} and Arvind Varma",

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doi = "10.1016/j.apcata.2012.11.029",

language = "English",

volume = "452",

pages = "147--154",

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T1 - Oxidative coupling of methane using catalysts synthesized by solution combustion method

AU - Ghose, Ranjita

AU - Hwang, Hyun Tae

AU - Varma, Arvind

PY - 2013/2/15

Y1 - 2013/2/15

N2 - Solution combustion synthesis (SCS) is a one-step technique for the preparation of nanostructured complex metal oxides. In the present study, SCS was used for the synthesis of several promising oxidative coupling of methane (OCM) catalyst series with varying metal ratios: (a) Sr-Al complex oxides, (b) La2O3, (c) La-Sr-Al complex oxides and (d) Na 2WO4-Mn/SiO2. The C2 yield and ethylene/ethane ratio were measured for each catalyst over a wide range of temperatures. It was found that the double perovskite phase is active for OCM in the Sr-Al complex oxide series. The Na2WO4-Mn/SiO 2 catalyst synthesized by SCS was stable and also showed high ethylene/ethane ratio ∼2 along with high C2 yield ∼25%, which is among the highest value reported in the literature, indicating that SCS is a promising method to prepare OCM catalysts.

AB - Solution combustion synthesis (SCS) is a one-step technique for the preparation of nanostructured complex metal oxides. In the present study, SCS was used for the synthesis of several promising oxidative coupling of methane (OCM) catalyst series with varying metal ratios: (a) Sr-Al complex oxides, (b) La2O3, (c) La-Sr-Al complex oxides and (d) Na 2WO4-Mn/SiO2. The C2 yield and ethylene/ethane ratio were measured for each catalyst over a wide range of temperatures. It was found that the double perovskite phase is active for OCM in the Sr-Al complex oxide series. The Na2WO4-Mn/SiO 2 catalyst synthesized by SCS was stable and also showed high ethylene/ethane ratio ∼2 along with high C2 yield ∼25%, which is among the highest value reported in the literature, indicating that SCS is a promising method to prepare OCM catalysts.

KW - Complex oxide catalysts

KW - Ethylene

KW - Methane

KW - Oxidative coupling

KW - Solution combustion synthesis (SCS)

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U2 - 10.1016/j.apcata.2012.11.029

DO - 10.1016/j.apcata.2012.11.029

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VL - 452

SP - 147

EP - 154

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

ER -

Oxidative coupling of methane using catalysts synthesized by solution combustion method

Abstract

Keywords

ASJC Scopus subject areas

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