Lanthanum Catalysts for CH4 Oxidative Coupling: A Comparison of the Reactivity of Phases

R. Paul Taylor; Glenn L. Schrader

doi:10.1021/ie00053a025

Lanthanum Catalysts for CH₄ Oxidative Coupling: A Comparison of the Reactivity of Phases

R. Paul Taylor, Glenn L. Schrader

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

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Abstract

The catalytic performance of A-La₂O₃, La(OH)₃, II-La₂O₂C03, and La₂CO₃)₃ for the catalytic oxidative coupling of methane to C₂ hydrocarbons was investigated over a range of reaction temperatures (up to 850 °C). The activity of the starting materials for methane conversion and selectivity to ethylene and ethane were in the order II-La₂O₂CO₃ > La₂(CO₃)₃ > La(OH)₃ > A-La₂O₃. Postreaction characterization by Fourier transform infrared spectroscopy and X-ray diffraction revealed that these materials undergo significant transformations. On the basis of this information, the presence of the oxycarbonate phase appears to have a beneficial effect on catalytic performance.

Original language	English (US)
Pages (from-to)	1016-1023
Number of pages	8
Journal	Industrial and Engineering Chemistry Research
Volume	30
Issue number	5
DOIs	https://doi.org/10.1021/ie00053a025
State	Published - May 1 1991
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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title = "Lanthanum Catalysts for CH4 Oxidative Coupling: A Comparison of the Reactivity of Phases",

abstract = "The catalytic performance of A-La2O3, La(OH)3, II-La2O2C03, and La2CO3)3 for the catalytic oxidative coupling of methane to C2 hydrocarbons was investigated over a range of reaction temperatures (up to 850 °C). The activity of the starting materials for methane conversion and selectivity to ethylene and ethane were in the order II-La2O2CO3 > La2(CO3)3 > La(OH)3 > A-La2O3. Postreaction characterization by Fourier transform infrared spectroscopy and X-ray diffraction revealed that these materials undergo significant transformations. On the basis of this information, the presence of the oxycarbonate phase appears to have a beneficial effect on catalytic performance.",

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N2 - The catalytic performance of A-La2O3, La(OH)3, II-La2O2C03, and La2CO3)3 for the catalytic oxidative coupling of methane to C2 hydrocarbons was investigated over a range of reaction temperatures (up to 850 °C). The activity of the starting materials for methane conversion and selectivity to ethylene and ethane were in the order II-La2O2CO3 > La2(CO3)3 > La(OH)3 > A-La2O3. Postreaction characterization by Fourier transform infrared spectroscopy and X-ray diffraction revealed that these materials undergo significant transformations. On the basis of this information, the presence of the oxycarbonate phase appears to have a beneficial effect on catalytic performance.

AB - The catalytic performance of A-La2O3, La(OH)3, II-La2O2C03, and La2CO3)3 for the catalytic oxidative coupling of methane to C2 hydrocarbons was investigated over a range of reaction temperatures (up to 850 °C). The activity of the starting materials for methane conversion and selectivity to ethylene and ethane were in the order II-La2O2CO3 > La2(CO3)3 > La(OH)3 > A-La2O3. Postreaction characterization by Fourier transform infrared spectroscopy and X-ray diffraction revealed that these materials undergo significant transformations. On the basis of this information, the presence of the oxycarbonate phase appears to have a beneficial effect on catalytic performance.

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Lanthanum Catalysts for CH₄ Oxidative Coupling: A Comparison of the Reactivity of Phases

Abstract

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