发明名称 |
Method and system for the production of direct reduced iron using a synthesis gas with a high carbon monoxide content |
摘要 |
Methods and systems for the production of direct reduced iron, including: removing a top gas from a direct reduction furnace; carbon monoxide shifting the top gas using a carbon monoxide shift reactor to form a carbon monoxide shifted top gas having a reduced carbon monoxide content; adding one of a coal gas, a synthesis gas, and an export gas to at least a portion of the carbon monoxide shifted top gas to form a combined gas; removing carbon dioxide from the combined gas using a carbon dioxide removal unit to form a carbon dioxide lean combined gas; and providing the carbon dioxide lean combined gas to the direct reduction furnace as a reducing gas for producing direct reduced iron after heating to reduction temperature. Optionally, the method includes removing carbon dioxide from the top gas using a carbon dioxide removal unit prior to carbon monoxide shifting the top gas. |
申请公布号 |
US8709131(B2) |
申请公布日期 |
2014.04.29 |
申请号 |
US201213397421 |
申请日期 |
2012.02.15 |
申请人 |
MEISSNER DAVID C.;METIUS GARY E.;HUGHES GREGORY D.;MIDREX TECHNOLOGIES, INC. |
发明人 |
MEISSNER DAVID C.;METIUS GARY E.;HUGHES GREGORY D. |
分类号 |
C21B3/04;F27B17/00;F27D99/00 |
主分类号 |
C21B3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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