Correlating Impacts of Injected Fuels on Carbon Emissions in Blast Furnace with CFD modeling

A major challenge for modern steelmaking is the reduction of CO2 emissions. In this regard, blast furnace (BF) process critical due to its high associated This investigation assesses impact tuyere-injected fuels on BF Specifically, CFD results obtained previously at Purdue University Northwest are analyzed obtain emissions when natural gas (NG), syngas, hydrogen or hydrogen/NG injected. compared with those produced 95 kg NG/thm Among scenarios, largest occurs 102 syngas/thm (COG feedstock #1) injected 973 K, reducing by 190.6 kg/thm. The NG 130 kg/thm 600 65 H2 injection also reduces CO2, but requires careful adjusting reach stable operation. For instance, injecting 35 H2/thm 52 Increasing gaseous rates can significantly reduce emissions, fuel pre-heating providing an addendum, lead unstable Furthermore, show a correlation between and average temperature shaft region multiple types conditions. article protected copyright. All rights reserved.