Concentration Fluctuations in Steel Mill Gases: Analytics as Key to Develop Steel Off-Gas Purification

The Carbon2Chem^® project utilizes steel production gases to synthesize methanol, urea, and other commodity chemicals. The complex process involves CO₂ capture and hydrogen production and synthesis, requiring precise analysis due to the diverse components in steel mill flue gases. As some of these components could harm the employed catalysts, the analytics needs to ensure the quality of the purification unit and enhance the understanding of transportation effects and performance in gas cleaning and methanol synthesis. An already established method, proton transfer reaction-mass spectrometry (PTR-MS), was employed to assess the gas quality.