Pressurized drop tube furnace tests of global coal gasification characteristics

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Pressurized drop tube furnace (PDTF) tests were performed with an Indonesian sub-bituminous coal while temperature, oxygen/coal ratio, steam/coal ratio and pressure were systematically varied. The tests were designed to investigate the effects of these experimental parameters on the pulverized coal gasification characteristics at elevated pressure. The results showed that the gasification at elevated pressure is more productive than that at atmospheric pressure, considering the carbon conversion and cold gas efficiency. The oxygen/coal ratio at the maximum cold gas efficiency ranged between 0.5 and 0.7 g/g. Only when the temperature was sufficiently high, did the increase of steam/coal ratio result in the improvement of cold gas efficiency. As the pressure increased, the contribution of carbon conversion by heterogeneous reactions increased while the conversion by pyrolysis decreased. Copyright (C) 2000 John Wiley & Sons, Ltd.
Publisher
JOHN WILEY SONS LTD
Issue Date
2000-07
Language
English
Article Type
Article
Citation

INTERNATIONAL JOURNAL OF ENERGY RESEARCH, v.24, no.9, pp.749 - 758

ISSN
0363-907X
URI
http://hdl.handle.net/10203/2434
Appears in Collection
ME-Journal Papers(저널논문)
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