放散高炉煤气的碳减排利用途径研究

针对高炉煤气中氮气与CO、CO_2分离困难,开发出回收其中CO和CO_2的变压吸附新技术.CO和CO_2与变压吸附从焦炉煤气中提取的H_2配合,可获得满足要求的甲醇合成气,并同时保证钢铁生产的物质平衡和能量平衡.新工艺为物理分离、混合过程,不包含转化等反应步骤,过程简单,是一种高炉煤气碳减排利用的有效方法.

Ways of carbon emission reduction of blast oven gas

Aiming at the difficulty of separating CO and CO_2 mixture from N_2 in the blast furnace gas,the pressure swing adsorption(PSA)technology is developed to recovery CO and CO_2.The mixture of CO and CO_2 combined with H2 from coke oven gas by PSA meets the demand of methanol synthesis gas,meanwhile,the mass and energy balance are ensured for iron and steel production.The process is physical separation and mixture,contains no chemical reaction such as shift conversion,so it is a simple,effective method for blast furnace gas carbon emission reduction and utilization.