| 초록 |
A diesel-powered SOFC-APU System installed on heavy duty vehicle has attracted considerable attention due to such benefits as reduced fuel consumption, emissions and idling time of primary engine. The system involves reformation of diesel into hydrogen-rich stream which serves as a fuel for SOFC unit. Among several possible reformation process, auto-thermal reformer (ATR) is expected to be the best fit for the corresponding system. To improve process understanding in SOFC-APU system, reaction kinetics model for catalytic auto-thermal reforming process is constructed in this study. The corresponding reformation process mainly consists of three overall reactions; total oxidation (TOX), steam reforming (SR) and water-gas shift (WGS). Kinetic modeling for the ATR model is developed based on micro-reactor experimental data for diesel surrogate (n-dodecane). The overall kinetic model with rigorously determined parameters, attained by parameter estimation using gPROMS application, predicts the ATR performance within reasonable error range. Ultimately, the results of this study will lead to a mathematical dynamic modeling of ATR diesel reformer. |
