The Effects of CeO2 Addition on the Performance of Zinc Oxide Sorbent Prepared by Microwave Solid-State Method for H2S Removal
Zibing Su, Mengmeng Wu, Yang Li, Yu Feng, Jie Mi
Available Online December 2015.
- https://doi.org/10.2991/isesce-15.2015.43How to use a DOI?
- CeO2-doped, ZnO sorbent, High temperature coal gas, Desulfurization
- 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.
- 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 SP - 216 EP - 222 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 -