Phase interactions in Mg-Ni-Al-O oxygen carriers for chemical looping applications

Jijiang Huang; Wen Liu; Yanhui Yang

doi:10.1016/j.cej.2017.05.176

Phase interactions in Mg-Ni-Al-O oxygen carriers for chemical looping applications

Jijiang Huang, Wen Liu^*, Yanhui Yang

^*Corresponding author for this work

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

31 Citations (Scopus)

Abstract

Chemical looping combustion offers a solution to achieve carbon capture with minimal energy penalty and significantly reduced NO_x formation. The design and synthesis of oxygen carriers play an important role in the advancement of chemical looping combustion. In this investigation, Mg-Ni-Al-O oxygen carriers were synthesised using layered double hydroxides (LDH) as precursors, which facilitate molecular level dispersion of cations in the resulting oxide composites. The behaviour of the synthesised oxygen carriers over 100 chemical looping cycles was studied. The results confirmed the presence of two solid solutions systems: MgO-NiO and MgAl₂O₄-NiAl₂O₄, the compositions of which changed over cycles and determined the performance of the oxygen carriers.

Original language	English
Pages (from-to)	470-476
Number of pages	7
Journal	Chemical Engineering Journal
Volume	326
DOIs	https://doi.org/10.1016/j.cej.2017.05.176
Publication status	Published - 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

ASJC Scopus Subject Areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

Keywords

Carbon capture
Chemical looping
Layered double hydroxides

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10.1016/j.cej.2017.05.176

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title = "Phase interactions in Mg-Ni-Al-O oxygen carriers for chemical looping applications",

abstract = "Chemical looping combustion offers a solution to achieve carbon capture with minimal energy penalty and significantly reduced NOx formation. The design and synthesis of oxygen carriers play an important role in the advancement of chemical looping combustion. In this investigation, Mg-Ni-Al-O oxygen carriers were synthesised using layered double hydroxides (LDH) as precursors, which facilitate molecular level dispersion of cations in the resulting oxide composites. The behaviour of the synthesised oxygen carriers over 100 chemical looping cycles was studied. The results confirmed the presence of two solid solutions systems: MgO-NiO and MgAl2O4-NiAl2O4, the compositions of which changed over cycles and determined the performance of the oxygen carriers.",

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year = "2017",

doi = "10.1016/j.cej.2017.05.176",

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T1 - Phase interactions in Mg-Ni-Al-O oxygen carriers for chemical looping applications

AU - Huang, Jijiang

AU - Liu, Wen

AU - Yang, Yanhui

PY - 2017

Y1 - 2017

N2 - Chemical looping combustion offers a solution to achieve carbon capture with minimal energy penalty and significantly reduced NOx formation. The design and synthesis of oxygen carriers play an important role in the advancement of chemical looping combustion. In this investigation, Mg-Ni-Al-O oxygen carriers were synthesised using layered double hydroxides (LDH) as precursors, which facilitate molecular level dispersion of cations in the resulting oxide composites. The behaviour of the synthesised oxygen carriers over 100 chemical looping cycles was studied. The results confirmed the presence of two solid solutions systems: MgO-NiO and MgAl2O4-NiAl2O4, the compositions of which changed over cycles and determined the performance of the oxygen carriers.

AB - Chemical looping combustion offers a solution to achieve carbon capture with minimal energy penalty and significantly reduced NOx formation. The design and synthesis of oxygen carriers play an important role in the advancement of chemical looping combustion. In this investigation, Mg-Ni-Al-O oxygen carriers were synthesised using layered double hydroxides (LDH) as precursors, which facilitate molecular level dispersion of cations in the resulting oxide composites. The behaviour of the synthesised oxygen carriers over 100 chemical looping cycles was studied. The results confirmed the presence of two solid solutions systems: MgO-NiO and MgAl2O4-NiAl2O4, the compositions of which changed over cycles and determined the performance of the oxygen carriers.

KW - Carbon capture

KW - Chemical looping

KW - Layered double hydroxides

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JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

Phase interactions in Mg-Ni-Al-O oxygen carriers for chemical looping applications

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

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