About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Advances and Challenges in Decarbonization of the Steel Industry
|
| Presentation Title |
Assessing the Mass and Energy Balance of Hydrogen Injection with Top Gas Recycling in a Blast Furnace |
| Author(s) |
Merajul Haque Ansari, Bryan Webler, P. Chris Pistorius |
| On-Site Speaker (Planned) |
Merajul Haque Ansari |
| Abstract Scope |
As efforts to use alternative reducing agents to reduce greenhouse gas emissions have become more important in industry, the use of hydrogen or hydrogen-rich gas injection into blast furnace tuyeres has been proposed to reduce dependence on coal and coke. The mass and energy balance of cold hydrogen injection into a blast furnace shows that only about 15-30 kg/thm can be injected into the tuyere; higher injection rates negatively affect the energy requirements for successful operation. Heating the hydrogen gas improves the mass and energy balances, and the injection rates are higher than those of cold hydrogen. In this study, we aim to understand how hydrogen injection affects the mass and energy balances of the blast furnace with top gas recycling. |