8th International Congress on Science and Technology of Ironmaking - ICSTI 2018

The iron & steel-work off-gases e.g. blast furnace gas(BFG), basic oxygen furnace gas(BOFG) and coke oven gas(COG) are generally used for heat or power generation, but the efficiency of gases utilization is low. A total solution using PU-1 molecuar sieve and vacuum pressure swing adsorption(VPSA) process, gains the carbon monoxide(CO) gas economically which purity can be more than 99%vol., let it be possible that produce chemical product by using the BFG, BOFG or COG efficiently. This solution has been applied in two iron & steel enterprises in China, one is produce formic acid using BOFG, the other is produce ethylene glycol using BOFG and COG. Iron & steel-Chemical Combined Making Technology significantly increase the efficiency of gases utilization, reduce the CO2 emissions, is one way of green development for iron & steel enterprises in the future.