【摘要】 本文概述了世界直接还原技术的发展与现状。目前气基竖炉直接还原从生产能力和实际产量上均占优势，然而从世界能源贮藏看，煤基直接还原必将出现繁荣。近十年，煤基回转窑直接还原取得了多方面的技术进步，得到稳定发展，从我国资源特点和技术开发上看，加快煤基直接还原是适应经济发展和推动优质钢生产的重要方向。更多还原

【Abstract】 Abstract In this paper,the present status and development trends of DR processes in foreign countrys were presented.Although the capacity and actual output of DRI for the gas-based shaft-kiln direct reduction process is predominant over other DR processes at present,it is sure that the coal-based DR processes will develop to a considerable extent in terms of the available energy resources in the world.In the recent decade,the coal-based DR processes have been improved in various aspects and developed steadly.It is concluded from the analysis of the natural resources distribution and the specific R & D conditions in our country that it is the main trend or China to accelerate the development of coal-based DR processes.更多还原