Layered Mg-Al spinel supported Ce-Fe-Zr-O oxygen carriers for chemical looping reforming

Jiangyong Yuan; Yannan Zhao; Haiwen Xu; Chunqiang Lu; Kun Yang; Xing Zhu; Kongzhai Li

doi:10.1016/j.cjche.2020.06.035

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Layered Mg-Al spinel supported Ce-Fe-Zr-O oxygen carriers for chemical looping reforming

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Layered Mg-Al spinel supported Ce-Fe-Zr-O oxygen carriers for chemical looping reforming
- Layered Mg-Al spinel supported Ce-Fe-Zr-O oxygen carriers for chemical looping reforming
- 中国化学工程学报（英文版） 2020年28卷第10期页码：2668-2676
- Affiliations：
  
  1. State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology,Kunming,China,650093
  2. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology,Kunming,China,650093
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2020.06.035
  中图分类号：
- 纸质出版：2020
- Accepted：
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Jiangyong Yuan, Yannan Zhao, Haiwen Xu, 等. Layered Mg-Al spinel supported Ce-Fe-Zr-O oxygen carriers for chemical looping reforming[J]. 中国化学工程学报（英文版）, 2020,28(10):2668-2676.

Jiangyong Yuan, Yannan Zhao, Haiwen Xu, Chunqiang Lu, Kun Yang, Xing Zhu, Kongzhai Li. Layered Mg-Al spinel supported Ce-Fe-Zr-O oxygen carriers for chemical looping reforming[J]. Chinese Journal of Chemical Engineering, 2020, 28(10): 2668-2676.
Jiangyong Yuan, Yannan Zhao, Haiwen Xu, 等. Layered Mg-Al spinel supported Ce-Fe-Zr-O oxygen carriers for chemical looping reforming[J]. 中国化学工程学报（英文版）, 2020,28(10):2668-2676. DOI： 10.1016/j.cjche.2020.06.035.

Jiangyong Yuan, Yannan Zhao, Haiwen Xu, Chunqiang Lu, Kun Yang, Xing Zhu, Kongzhai Li. Layered Mg-Al spinel supported Ce-Fe-Zr-O oxygen carriers for chemical looping reforming[J]. Chinese Journal of Chemical Engineering, 2020, 28(10): 2668-2676. DOI： 10.1016/j.cjche.2020.06.035.

摘要

Abstract

A series of layered Mg-Al spinel supported Ce-Fe-Zr-O oxygen carriers were prepared for co-production of syngas and pure hydrogen

via

chemical looping steam reforming (CLSR). The presence of magnesium-aluminum layered double oxides (MgAl-LDO) significantly increases the specific surface area of the mixed oxides

reduces the particle size of CeO

-based solid solution and promotes the dispersion of free Fe

. When reacting with methane

MgAl-LDO supported oxygen carrier shows much lower temperature for methane oxidation than the pure CeFe-Zr-O sample

indicating enhanced low-temperature reactivity. Among different Ce-Fe-Zr-O(

)/MgAl-LDO samples

the Ce-Fe-Zr-O(40 wt%)/MgAl-LDO sample shows the best performance for the selective oxidation of methane to syngas and the H

production by water splitting. After a long period of high temperature redox experiment

the Ce-Fe-Zr-O(40 wt%)/MgAl-LDO oxygen carrier still shows high activity for syngas generation. The comparison on the morphology of the fresh and cycled oxygen carriers indicates that the Mg-Al spinel support still forms a stable skeleton structure with high dispersion

of active components on the surface after the long-term cycling

which contributes to excellent redox stability of the Ce-Fe-Zr-O(40 wt%)/MgAl-LDO oxygen carrier.

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