Proceedings of the 2015 International Symposium on Energy Science and Chemical Engineering

The Effects of CeO2 Addition on the Performance of Zinc Oxide Sorbent Prepared by Microwave Solid-State Method for H2S Removal

Authors
Zibing Su, Mengmeng Wu, Yang Li, Yu Feng, Jie Mi
Corresponding Author
Zibing Su
Available Online December 2015.
DOI
https://doi.org/10.2991/isesce-15.2015.43How to use a DOI?
Keywords
CeO2-doped, ZnO sorbent, High temperature coal gas, Desulfurization
Abstract
ZnO sorbents with different CeO2 loadings were prepared by microwave calcination and tested the performance for H2S removal in a fixed-bed reactor at 500 . The results revealed that the Ce-doped sorbents have a higher efficiency and longer breakthrough time compared with non-modified sorbents. The optimal sulfur capacity (13.03 gS/100 g) and breakthrough time (17.5 h) were obtained when the content of CeO2 up to 4 wt.%. XRD, SEM, XPS and mercury porosimetry methods were used to characterize the structure of sorbents. Analysis data indicated that the addition of CeO2 leads to better pore structure and larger specific surface, which facilitates the diffusion of H2S into the active sites. Furthermore, the presence of CeO2 also results in an increase in the content of surface elements including Zn and O, which contributes to improve the ability of H2S removal.
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Proceedings
2015 International Symposium on Energy Science and Chemical Engineering
Part of series
Advances in Engineering Research
Publication Date
December 2015
ISBN
978-94-6252-140-7
ISSN
2352-5401
DOI
https://doi.org/10.2991/isesce-15.2015.43How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Zibing Su
AU  - Mengmeng Wu
AU  - Yang Li
AU  - Yu Feng
AU  - Jie Mi
PY  - 2015/12
DA  - 2015/12
TI  - The Effects of CeO2 Addition on the Performance of Zinc Oxide Sorbent Prepared by Microwave Solid-State Method for H2S Removal
BT  - 2015 International Symposium on Energy Science and Chemical Engineering
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/isesce-15.2015.43
DO  - https://doi.org/10.2991/isesce-15.2015.43
ID  - Su2015/12
ER  -