Supercritical water gasification of a heavy fuel oil

摘要

In this research, the supercritical water gasification for a sort of heavy fuel oil, Mazut, has been investigated. Mazut was modeled with a 33-pseudo-component using the corresponding distillation curve. In a reactor, the equilibrium reactions were simulated using the Gibbs free energy minimization method. A parametric study was performed on this system. The parameters were included mass fraction of fuel and pressure and temperature of the gasifier. Two approaches were investigated, one with constant pressure (P = 22.1 MPa) and the other with constant temperature (T = 600 degrees C), varying the other two parameters. H-2 production efficiency reaches a maximum at fuel mass fraction about 30 percent and gasifier temperature in the range of 500 degrees C to 700 degrees C.