About this Abstract |
Meeting |
MS&T23: Materials Science & Technology
|
Symposium
|
Advances in Ferrous Metallurgy
|
Presentation Title |
G-4: Numerical Simulation of Blast Furnace Process with Injection of Coke Oven Gas through Tuyere |
Author(s) |
Hsuan-Chung Wu, Kuan-Yu Chen, Huey-Jiuan Lin, Shan-Wen Du, Tsung-Yen Huang, Bo-Jhih Lin |
On-Site Speaker (Planned) |
Hsuan-Chung Wu |
Abstract Scope |
The use of hydrogen-rich gas as a substitute for pulverized coal or coke is considered a feasible method for reducing carbon dioxide emissions in the blast furnace process. In this study, numerical simulation was used to analyze the combustion behavior of three cases in the lower part of the blast furnace: pulverized coal (PC), coke oven gas (COG), and dual PC + COG. The simulation results showed that when only PC was injected, the ignition and combustion location and oxygen consumption were mainly in the tuyere zone. When COG was injected, combustion began inside the tuyere and increased the tuyere temperature. In addition, the injection of COG also increased the pressure difference from the hot air inlet to the tuyere outlet. Therefore, safety and stability issues must be considered in the future use of hydrogen-rich gas in the blast furnace process. |