We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
Modification of ferrite-manganese oxide sorbent by doping with cerium oxide.
- Authors
Hai Zhao; Dexiang Zhang; Fangfang Wang; Tingting Wu; Jinsheng Gao
- Abstract
Fe-Mn oxide and Ce-doped Fe-Mn oxide sorbents were studied on the structural and desulfurization behavior in COS removal from syngas. The effects of cerium oxide on the Fe-Mn oxides have been investigated by XRD, BET, TPR, XPS and TEM methods. Analysis data show that the Ce-doped sorbent has larger specific surface area and better particles' dispersion compared with non-modified Fe-Mn sorbent. The addition of Ce improves the reduction performance of Fe-Mn species. The desulfurization experiments show that the desulfurization activity of sorbent can be increased because of the promotion of the structural and redex properties by ceria doped. The Ce-doped sorbent can reduce COS from 15,000 ppmv to less than 0.1 ppmv at 325°C and a space velocity of 1000 h-1.
- Subjects
FERRITES; MANGANESE; OXIDES; SORBENTS; CERIUM oxides; X-ray diffraction; TRANSMISSION electron microscopy
- Publication
Process Safety & Environmental Protection: Transactions of the Institution of Chemical Engineers Part B, 2008, Vol 86, Issue 6, p448
- ISSN
0957-5820
- Publication type
Article
- DOI
10.1016/j.psep.2008.06.002