Seven kinds of coals (C, 77.S89.8 wt% daf) were oxidized with air at 150Β°C for 1, 5 and 10 h. The oxidized coals were heat-treated at various temperatures between 300 and 1500Β°C with intervals of 50 or 100Β°C. The pore-structure of the oxidized coals and the cokes or chars obtained from the oxidized
Dynamic thermogravimetric studies on the effect of boric oxide on a coke and a char
β Scribed by Margaret A. Carter; Douglas R. Glasson; S.Amarasiri A. Jayaweera
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 443 KB
- Volume
- 63
- Category
- Article
- ISSN
- 0016-2361
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β¦ Synopsis
Blast furnace production of zinc and lead requires metallurgical cokes of low reactivity. Boric oxide is known to act as a negative catalyst for the oxidation of coke. The present work investigates the effect of boric oxide on the reactivity of Nantgarw coke and Australian brown coal char towards air and carbon dioxide using simultaneous thermogravimetric/differentiaI thermal analysis. The effect of heating rate, gas flow rate and particle size on the oxidations has been investigated.
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