Anion doping CO2-stable oxygen permeable membranes for syngas production

Jian Xue; Jiaqi Li; Libin Zhuang; Li Chen; Armin Feldhoff; Haihui Wang

doi:10.1016/j.cej.2018.04.090

Anion doping CO₂-stable oxygen permeable membranes for syngas production

Jian Xue^*
, Jiaqi Li
, Libin Zhuang
, Li Chen
, Armin Feldhoff
, Haihui Wang

^*Korrespondierende*r Autor*in für diese Arbeit

Institut für Physikalische Chemie und Elektrochemie

South China University of Technology

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Abstract

For practical application in syngas production, the oxygen permeable membranes should possess both high oxygen permeation flux and good stability in harsh environment (CO₂-containing reductive atmosphere). Under the premise of keeping stability, anion-doping method was applied to improve the oxygen permeability of the CO₂-stable (Pr_0.9La_0.1)_2.0(Ni_0.74Cu_0.21Ga_0.05)O_4+δ ((PL)_2.0NCG) membrane. The developed (Pr_0.9La_0.1)_2.0(Ni_0.74Cu_0.21Ga_0.05)O_4+δCl_0.1 ((PL)_2.0NCGCl_0.1) exhibited three times higher oxygen permeation fluxes, similar CO₂-tolerance and long-term stability compared with its parent one. Furthermore, the (PL)_2.0NCGCl_0.1 membrane was constructed to be used in reactors for the syngas production through partial oxidation of methane, which showed an oxygen permeation flux of 5 mL/min cm², a methane conversion of 99.9%, and a CO selectivity of 97.5% at 900 °C, and no any degradation was observed during 100 h.

Originalsprache	Englisch
Seiten (von - bis)	84-90
Seitenumfang	7
Fachzeitschrift	Chemical Engineering Journal
Jahrgang	347
Elektronisch veröffentlicht (E-Pub)	16 Apr. 2018
DOIs	https://doi.org/10.1016/j.cej.2018.04.090
Publikationsstatus	Veröffentlicht - 1 Sept. 2018

ASJC Scopus Sachgebiete

Allgemeine Chemie
Umweltchemie
Allgemeine chemische Verfahrenstechnik
Wirtschaftsingenieurwesen und Fertigungstechnik

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10.1016/j.cej.2018.04.090

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title = "Anion doping CO2-stable oxygen permeable membranes for syngas production",

abstract = "For practical application in syngas production, the oxygen permeable membranes should possess both high oxygen permeation flux and good stability in harsh environment (CO2-containing reductive atmosphere). Under the premise of keeping stability, anion-doping method was applied to improve the oxygen permeability of the CO2-stable (Pr0.9La0.1)2.0(Ni0.74Cu0.21Ga0.05)O4+δ ((PL)2.0NCG) membrane. The developed (Pr0.9La0.1)2.0(Ni0.74Cu0.21Ga0.05)O4+δCl0.1 ((PL)2.0NCGCl0.1) exhibited three times higher oxygen permeation fluxes, similar CO2-tolerance and long-term stability compared with its parent one. Furthermore, the (PL)2.0NCGCl0.1 membrane was constructed to be used in reactors for the syngas production through partial oxidation of methane, which showed an oxygen permeation flux of 5 mL/min cm2, a methane conversion of 99.9\%, and a CO selectivity of 97.5\% at 900 °C, and no any degradation was observed during 100 h.",

keywords = "Anion-doping, CO stability, Oxygen separation membrane, Partial oxidation of methane",

author = "Jian Xue and Jiaqi Li and Libin Zhuang and Li Chen and Armin Feldhoff and Haihui Wang",

year = "2018",

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doi = "10.1016/j.cej.2018.04.090",

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journal = "Chemical Engineering Journal",

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T1 - Anion doping CO2-stable oxygen permeable membranes for syngas production

AU - Xue, Jian

AU - Li, Jiaqi

AU - Zhuang, Libin

AU - Chen, Li

AU - Feldhoff, Armin

AU - Wang, Haihui

PY - 2018/9/1

Y1 - 2018/9/1

N2 - For practical application in syngas production, the oxygen permeable membranes should possess both high oxygen permeation flux and good stability in harsh environment (CO2-containing reductive atmosphere). Under the premise of keeping stability, anion-doping method was applied to improve the oxygen permeability of the CO2-stable (Pr0.9La0.1)2.0(Ni0.74Cu0.21Ga0.05)O4+δ ((PL)2.0NCG) membrane. The developed (Pr0.9La0.1)2.0(Ni0.74Cu0.21Ga0.05)O4+δCl0.1 ((PL)2.0NCGCl0.1) exhibited three times higher oxygen permeation fluxes, similar CO2-tolerance and long-term stability compared with its parent one. Furthermore, the (PL)2.0NCGCl0.1 membrane was constructed to be used in reactors for the syngas production through partial oxidation of methane, which showed an oxygen permeation flux of 5 mL/min cm2, a methane conversion of 99.9%, and a CO selectivity of 97.5% at 900 °C, and no any degradation was observed during 100 h.

AB - For practical application in syngas production, the oxygen permeable membranes should possess both high oxygen permeation flux and good stability in harsh environment (CO2-containing reductive atmosphere). Under the premise of keeping stability, anion-doping method was applied to improve the oxygen permeability of the CO2-stable (Pr0.9La0.1)2.0(Ni0.74Cu0.21Ga0.05)O4+δ ((PL)2.0NCG) membrane. The developed (Pr0.9La0.1)2.0(Ni0.74Cu0.21Ga0.05)O4+δCl0.1 ((PL)2.0NCGCl0.1) exhibited three times higher oxygen permeation fluxes, similar CO2-tolerance and long-term stability compared with its parent one. Furthermore, the (PL)2.0NCGCl0.1 membrane was constructed to be used in reactors for the syngas production through partial oxidation of methane, which showed an oxygen permeation flux of 5 mL/min cm2, a methane conversion of 99.9%, and a CO selectivity of 97.5% at 900 °C, and no any degradation was observed during 100 h.

KW - Anion-doping

KW - CO stability

KW - Oxygen separation membrane

KW - Partial oxidation of methane

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DO - 10.1016/j.cej.2018.04.090

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