Mathematical model of COREX melter gasifier: Part I. Steady-state model
The COREX melter gasifier is a countercurrent reactor to produce liquid iron. Directly reduced iron (DRI), noncoking coal, and other additives are charged to the melter gasifier at their respective temperatures, and O sub 2 is blown through the tuyeres. Functionally, a melter gasifier is divided int...
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| Veröffentlicht in: | Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2003-02, Vol.34 (1), p.103-114 |
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| container_title | Metallurgical and materials transactions. B, Process metallurgy and materials processing science |
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| creator | PAL, Subrata ASHOK KUMAR LAHIRI |
| description | The COREX melter gasifier is a countercurrent reactor to produce liquid iron. Directly reduced iron (DRI), noncoking coal, and other additives are charged to the melter gasifier at their respective temperatures, and O sub 2 is blown through the tuyeres. Functionally, a melter gasifier is divided into three zones: a moving bed, fluidized bed, and free board. A model has been developed for the moving bed, where the tuyere region is two-dimensional (2-D) and the rest is one-dimensional (1-D). It is based on multiphase conservation of mass, momentum, and heat. The fluidized bed has been treated as 1-D. Partial equilibrium is calculated for the free board. The calculated temperature of the hot metal, the top gas, and the chemistry of the top gas agree with the reported plant data. The model has been used to study the effects of bed height, injection of impure O sub 2 , coal chemistry, and reactivity on the process performance. The COREX process is the first commercially operating smelting reduction process. |
| doi_str_mv | 10.1007/s11663-003-0060-7 |
| format | Article |
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| ispartof | Metallurgical and materials transactions. B, Process metallurgy and materials processing science, 2003-02, Vol.34 (1), p.103-114 |
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| subjects | Applied sciences Exact sciences and technology Iron and steel making Metals. Metallurgy Other methods of steel making and pure ironmaking Production of metals |
| title | Mathematical model of COREX melter gasifier: Part I. Steady-state model |
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