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METHODS AND SYSTEMS FOR PRODUCING DIRECT REDUCED IRON INCORPORATING A CARBON DIOXIDE AND STEAM REFORMER FED BY RECOVERED CARBON DIOXIDE
METHODS AND SYSTEMS FOR PRODUCING DIRECT REDUCED IRON INCORPORATING A CARBON DIOXIDE AND STEAM REFORMER FED BY RECOVERED CARBON DIOXIDE
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机译:生产直接还原铁并掺入二氧化碳和由重整二氧化碳供料的蒸汽重整器的方法和系统
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摘要
Methods and systems for producing direct reduced iron (DRI), comprising: generating a syngas stream in a carbon dioxide (C02) and steam reformer; and providing the syngas stream to a direct reduction (DR) shaft furnace as a reducing gas stream. The methods and systems also comprise combining the syngas stream with a recycled off-gas stream from the DR shaft furnace to form the reducing gas stream. The methods and systems further comprise removing carbon dioxide (C02) from the recycled off-gas stream from the DR shaft furnace prior to combining it with the syngas stream to form the reducing gas stream. The methods and systems still further comprise feeding C02 removed from the recycled off-gas stream from the DR shaft furnace to the C02 and steam reformer. The methods and systems still further comprise feeding recycled off-gas from the recycled off-gas stream from the DR shaft furnace to the C02 and steam reformer.
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