Science, technology and strategy for minimizing GHG emission in steel industry

In order to minimize CO2 emission from iron and steel-making processes to abate greenhouse gas impact, the considerations and some practice of science and technology as well as its strategy completed and on going in Chinese steel industry are summarized. Two available ways for the minimizing in China so far: (1) Minimizing carbon-consumption (fossil energy-saving) in all the processes of steel industry which is the most realizable measure for reducing CO2 emission. (2) To look for new alternative reaction medium in the processes where producing more C02 like Ha in blast furnace etc and new processes for iron and steel making which discharge less CO2 . Some new ideas like macro-based measures are put forward for minimizing CO2 emission in steel industry.