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Oxygen blast furnace (OBF) has many advantages such as a high coal injection rate, reduced coke ratio, lower CO2 emissions, and improved production efficiency, and is considered one of the most promising low−carbon ironmaking processes for large−scale application. Therefore, it has received extensive research attention. This article analyzes the current state and development trends of OBF research from various aspects, including its development history, industrial experiments, physical models, and mathematical models. Carbon reduction potential of the OBF is analyzed from the perspectives of internal production state production indexes, material flow, and energy flow. It is found that OBF has significant carbon reduction advantages compared to traditional blast furnaces (TBF), and its carbon reduction potential can be further enhanced with CO2 capture and storage technologies. Then, the progress made by China Baowu Hydrogen−enriched Carbonic oxide Recycling Oxygenate Furnace (HyCROF) was elaborated in more detail. This process achieved a utilization coefficient of 5.0 t/(m3·d), reducing the cost per ton of iron by approximately 150 yuan compared to previous stages. Finally, it looks ahead to accelerating the integration of the "blast furnace−converter" long process by replacing carbon with hydrogen, combining carbon capture and storage (CCS) technology and pure hydrogen reduction technology, so as to build an intelligent, efficient and high−yield development direction for the steel industry. Finally, the direction of low−carbon iron making in China is prospected.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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