ABSTRACT
This chapter provides a wide overview of available results for the application of gas absorption, gas adsorption, and membrane separation technologies for the recovery of the aforementioned gas species. It presents key features, drawbacks, and research directions for the use of each technology. Reduction of greenhouse gas emissions from steel production has been the main topic of extensive research worldwide. Several alternative technologies such as ultralow-carbon dioxide (CO2) steel production are upcoming development to replace existing carbon-based steel manufacturing. Gas separation technologies for the capture step play a vital role in the storage or valorization schemes, and are key parts of all of the ongoing research efforts in the field. To reduce harmful gaseous effluent emissions, similar projects are underway in other countries. In Japan, the COURSE 50 project undergoes CO2 capture with amine absorption technology as well as physical adsorbents, and coke oven gas reforming for utilization in the BF to cut CO2 emissions by 30%.
