| 초록 |
The reaction kinetics of combined steam and CO2 reforming with CH4 (CSCR) were developed using a core-shell structured Ni/Al2O3 catalyst and using hydrogen-rich byproduct gases with the molar composition of H2/CH4/CO/CO2 = 55/27/9/3, which is the general composition of coke-oven gas. The core-shell structured Ni/Al2O3 catalyst was prepared by using oxalic acid in an ethanol solvent with 10wt% of Ni on gamma-Al2O3. The reaction carried out the following reaction conditions; T = 750 - 900 oC, P = 0.1 MPa, weight hourly space velocity = 180,000 - 450,000 L/kgcat/h, molar ratio of H2O/CH4 = 1.0 - 2.0. The developed kinetic models, which were simultaneously combined with CO2 reforming with CH4 and steam reforming of CH4, were well fitted with the experimental results. |
