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Titolo: Characterizing coal-gasifier slag-refractory interactions
Autore: Rawers, J; Kwong, J; Bennett, J;
- Indirizzi:
- US DOE, Albany Res Ctr, Albany, OR USA US DOE Albany OR USAUS DOE, Albany Res Ctr, Albany, OR USA
- Titolo Testata:
- MATERIALS AT HIGH TEMPERATURES
fascicolo: 4,
volume: 16,
anno: 1999,
pagine: 219 - 222
- SICI:
- 0960-3409(1999)16:4<219:CCSI>2.0.ZU;2-B
- Fonte:
- ISI
- Lingua:
- ENG
- Keywords:
- coal-gasifier; slag-refractory interactions;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Engineering, Computing & Technology
- Citazioni:
- 0
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Rawers, J US DOE, Albany Res Ctr, Albany, OR USA US DOE Albany OR USAUS DOE, Albany Res Ctr, Albany, OR USA
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- Citazione:
- J. Rawers et al., "Characterizing coal-gasifier slag-refractory interactions", MATER HIGH, 16(4), 1999, pp. 219-222
Abstract
To characterize refractory degradation and loss in commercial coal-gasifier combined cycle power systems, cup-type tests were conducted on high chromium-alumina, sinter-bonded refractories under laboratory conditions designed to simulate commercial operations of temperature, atmosphere, and slag interactions. These tests provided qualitative results from which the slag-refractory interactions can be characterized. These high chromium refractories were generally inert with respect to the coal slag components. However, in this study preliminary findings did show (1) iron( oxide) in the slag reacted with chrome sesquioxide to produce a Cr-Fe spinel at the slag-refractory interface, and (2) chrome was soluble in the molten slag. Comparison of cup-type test results with data from operating commercial plants suggests that the principal loss of refractory material in a coal-gasifier combustionchamber is chrome dissolution into the slag. Tests are currently underway to determine if minor modifications to the combustion process might increase refractory Life.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/01/21 alle ore 12:40:39