| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 |
19권 2호, p.1786 |
| 발표분야 |
유동층 |
| 제목 |
The improvement of reactivity of an iron-based oxygen carrier via the addition of bivalent metal in three-reactor chemical looping process |
| 초록 |
The cyclic operation of steam-iron process is capable of generating very pure hydrogen allowing simultaneous capture of a pure steam of CO2. This process involves the use of iron oxide (Fe2O3) as an oxygen carrier and a three-step water-splitting cycle. One of the key issues in this process involves the development of oxygen carrier. This paper reports the improvement in the reactivity of the iron oxide supported by ZrO2 (FZ) by adding 2 wt% bivalent metals (Ni, Cu, and Mo). Cu-added FZ (CFZ) and Mo-added FZ (MFZ) showed the lower activation energy and higher pre-exponential factor. CFZ and MFZ produced high steam conversion during the oxidation period and FZ and CFZ showed low carbon deposition on the surface of oxygen carrier. In summary, CFZ showed the best reactivity for its sufficient reaction rate, high steam conversion and low carbon deposition on the surface possibly due to forming CuxFe3-xO4 and dispersed Cu oxygen carriers on ZrO2 under high and low O2 partial pressures, respectively. |
| 저자 |
조원철, 강경수, 김창희, 박주식, 배기광, 정성욱
|
| 소속 |
한국에너지기술(연) |
| 키워드 |
oxygen carrier; chemical looping process; hydrogen production
|
| E-Mail |
|
| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
