抄録
This paper presents a new energy recuperation concept through the use of gas separation．In a conventional way, steelworks by-product gases that have been generated from coke oven, blast furnace, and converter have been used directly for fuel. Blast furnace gas that has generated over 50% amount of by-product gases, which is loaded with CO2 and N2 gases. So, we propose that CO2 and N2 gases should be separated from blast furnace gas. This heat value will increase the original heat value of blast furnace gas．This blast furnace gas will increase the efficiency of the newest Gas Turbine Combined Cycle(GTCC) power plants by +5% and reduce the CO2 emission by ▲25% at a conventional steelworks with 10 million ton-steel/year yield.
