| 摘要 |
PURPOSE:To recover economically CO from a gaseous mixture contg. CO by a dry process in a high yield by treating the gaseous mixture by a specified two-stage system. CONSTITUTION:A gaseous mixture contg. CO such as a gaseous mixture consisting of about 20% CO, about 20% CO2 and about 60% N2 exhausted from a blast furnace in an iron mill is introduced into a reactor 1 packed with a catalyst such as Ni supported on alumina, and C is deposited by a reaction represented by equation I. The treated gas is introduced into a separator 2 to remove N2, and it is fed to the reactor 1 after adding CO2 from an external source in a joining part 3 as required. In the reactor 1, a reaction represented by equation II is carried out to recover CO. |
