Tubular lanthanum cobaltite perovskite-type membrane reactors for partial oxidation of methane to syngas

Wanqin Jin; Shiguang Li; Pei Huang; Nanping Xu; Jun Shi; Y. S. Lin

doi:10.1016/S0376-7388(99)00245-8

Tubular lanthanum cobaltite perovskite-type membrane reactors for partial oxidation of methane to syngas

Wanqin Jin, Shiguang Li, Pei Huang, Nanping Xu, Jun Shi, Y. S. Lin

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

84 Scopus citations

Abstract

The partial oxidation of methane to synthesis gas (syngas) was performed on a tubular La_0.6Sr_0.4Co_0.2Fe_0.8O(3-δ) membrane reactor packed with a Ni/γ-Al₂O₃ catalyst. In 1098-1158K, the CH₄ conversion was larger than 96% with the CO selectivity larger than 97% at low methane concentrations in the feed. CH₄ conversion decreased and CO selectivity remained essentially constant with increasing concentration of methane in the feed. Carbon deposition on the surface of the catalyst (with H₂/CO ratio in the product larger than 2) occurred at high CH₄ concentration (>6%) in the feed. Analysis of SEM, XRD and EDS on the used membrane showed metal ion reduction/sublimation and segregation of elements on the membrane surfaces, which led to a redistribution of the metal ions across the membrane after being operated in the membrane reactor at the reaction temperature for 3-7h. Copyright (C) 2000 Elsevier Science B.V.

Original language	English (US)
Pages (from-to)	13-22
Number of pages	10
Journal	Journal of Membrane Science
Volume	166
Issue number	1
DOIs	https://doi.org/10.1016/S0376-7388(99)00245-8
State	Published - Feb 14 2000
Externally published	Yes

Keywords

Ceramic membrane
Membrane reactor
Perovskite-type oxide
Syngas

ASJC Scopus subject areas

Biochemistry
Materials Science(all)
Physical and Theoretical Chemistry
Filtration and Separation

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10.1016/S0376-7388(99)00245-8

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title = "Tubular lanthanum cobaltite perovskite-type membrane reactors for partial oxidation of methane to syngas",

abstract = "The partial oxidation of methane to synthesis gas (syngas) was performed on a tubular La0.6Sr0.4Co0.2Fe0.8O(3-δ) membrane reactor packed with a Ni/γ-Al2O3 catalyst. In 1098-1158K, the CH4 conversion was larger than 96% with the CO selectivity larger than 97% at low methane concentrations in the feed. CH4 conversion decreased and CO selectivity remained essentially constant with increasing concentration of methane in the feed. Carbon deposition on the surface of the catalyst (with H2/CO ratio in the product larger than 2) occurred at high CH4 concentration (>6%) in the feed. Analysis of SEM, XRD and EDS on the used membrane showed metal ion reduction/sublimation and segregation of elements on the membrane surfaces, which led to a redistribution of the metal ions across the membrane after being operated in the membrane reactor at the reaction temperature for 3-7h. Copyright (C) 2000 Elsevier Science B.V.",

keywords = "Ceramic membrane, Membrane reactor, Perovskite-type oxide, Syngas",

author = "Wanqin Jin and Shiguang Li and Pei Huang and Nanping Xu and Jun Shi and Lin, {Y. S.}",

note = "Funding Information: This work is supported by the National Advanced Materials Committee of China (NAMCC No. 715-006-0120), and the National Natural Science Foundation of China (NNSFC No. 59789201). ",

year = "2000",

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doi = "10.1016/S0376-7388(99)00245-8",

language = "English (US)",

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TY - JOUR

T1 - Tubular lanthanum cobaltite perovskite-type membrane reactors for partial oxidation of methane to syngas

AU - Jin, Wanqin

AU - Li, Shiguang

AU - Huang, Pei

AU - Xu, Nanping

AU - Shi, Jun

AU - Lin, Y. S.

N1 - Funding Information: This work is supported by the National Advanced Materials Committee of China (NAMCC No. 715-006-0120), and the National Natural Science Foundation of China (NNSFC No. 59789201).

PY - 2000/2/14

Y1 - 2000/2/14

N2 - The partial oxidation of methane to synthesis gas (syngas) was performed on a tubular La0.6Sr0.4Co0.2Fe0.8O(3-δ) membrane reactor packed with a Ni/γ-Al2O3 catalyst. In 1098-1158K, the CH4 conversion was larger than 96% with the CO selectivity larger than 97% at low methane concentrations in the feed. CH4 conversion decreased and CO selectivity remained essentially constant with increasing concentration of methane in the feed. Carbon deposition on the surface of the catalyst (with H2/CO ratio in the product larger than 2) occurred at high CH4 concentration (>6%) in the feed. Analysis of SEM, XRD and EDS on the used membrane showed metal ion reduction/sublimation and segregation of elements on the membrane surfaces, which led to a redistribution of the metal ions across the membrane after being operated in the membrane reactor at the reaction temperature for 3-7h. Copyright (C) 2000 Elsevier Science B.V.

AB - The partial oxidation of methane to synthesis gas (syngas) was performed on a tubular La0.6Sr0.4Co0.2Fe0.8O(3-δ) membrane reactor packed with a Ni/γ-Al2O3 catalyst. In 1098-1158K, the CH4 conversion was larger than 96% with the CO selectivity larger than 97% at low methane concentrations in the feed. CH4 conversion decreased and CO selectivity remained essentially constant with increasing concentration of methane in the feed. Carbon deposition on the surface of the catalyst (with H2/CO ratio in the product larger than 2) occurred at high CH4 concentration (>6%) in the feed. Analysis of SEM, XRD and EDS on the used membrane showed metal ion reduction/sublimation and segregation of elements on the membrane surfaces, which led to a redistribution of the metal ions across the membrane after being operated in the membrane reactor at the reaction temperature for 3-7h. Copyright (C) 2000 Elsevier Science B.V.

KW - Ceramic membrane

KW - Membrane reactor

KW - Perovskite-type oxide

KW - Syngas

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Tubular lanthanum cobaltite perovskite-type membrane reactors for partial oxidation of methane to syngas

Abstract

Keywords

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