| 학회 |
한국화학공학회 |
| 학술대회 |
2004년 가을 (10/29 ~ 10/30, 호서대학교(아산캠퍼스)) |
| 권호 |
10권 2호, p.1662 |
| 발표분야 |
에너지/환경 |
| 제목 |
The regeneration properties of Zn-Al based desulfurization sorbents promoted with CeO2 and Fe2O3 |
| 초록 |
Zn-Al based desulfurization sorbents promoted with Fe2O3 and CeO2 were prepared by co-precipitation method to improve the regeneration properties of ZnO-Al2O3(ZA)sorbent. Their sulfur removing capacities and regeneration properties were measured in a fixed bed reactor during multiple cycles at middle temperatures in the range of 480 – 580oC. In the case of ZA promoted with Fe(ZAF) sorbent, the sulfides formed during sulfidation were defined as ZnS and FeS from X-ray diffraction. Iron sulfides were regenerated at a lower temperature than that of ZnS and the regeneration properties of ZnS were improved even at low temperatures through the heat produced in the reaction of iron sulfides that were converted into oxide phases. In the case of ZA promoted with Ce(ZACe) sorbent, CeO2 was not changed to sulfide form during sulfidation. This promoter plays an important role in transforming S into SO2 which can easily desorb from the ZnS. In particular, ZA sorbent promoted simultaneously with Ce(5wt%) and Fe(5wt%) was excellent for regeneration although sulfur removing capacities of these sorbents were partially decreased compared with that of ZA sorbent in middle temperture. |
| 저자 |
정석용1, 김재창1, 전희권2, 이수재1, 이태진3, 류청걸4
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| 소속 |
1경북대, 2한국과학기술원, 3영남대, 4한전전력(연) |
| 키워드 |
desulfurization; sorbent; ZnO
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| E-Mail |
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| 원문파일 |
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