Reduction of CO₂ Emission from Off-Gases of Steel Industry by Dry Reforming of Methane.

ABSTRACT: In a novel process, CO₂ and CH₄ from the off-gases of the coke oven and blast furnace are used in homogeneous reforming of those greenhouse gases to valuable syngas, a mixture of H₂ and CO. Synthetic mixtures of the off-gases from those large apparatuses of steel industry are fed to a high-temperature, high-pressure flow reactor at varying temperature, pressure, residence time, and mixing ratio of coke oven gas (COG) to blast furnace gas (BFG). In this study, a maximal reduction of 78.5 % CO₂ and a CH₄ conversion of 95 % could be achieved at 1350 °C, 5.5 bar, and a COG/BFG ratio of 0.6. Significant carbonaceous deposits were formed but did not block the reactor tube in the operational time window allowing cyclic operation of the proces

SUBMITTER: Angeli SD 

PROVIDER: S-EPMC8251717 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature