The heating value of solid fuels obtained from torrefied MSW reaches 6,000 kcal/kg so that it has the potential to replace coal. The challenge faced today is how to develop a continuous reactor system to get solid fuel from torrefied MSW. The objective of this study is to simulate torrefaction process using ASPEN TM software on a continuous system with a tubular reactor. MSW feed capacity of 5 kg/hr with variation of moisture content about 30-80%. The simulation system consists of a drying reactor (Rstoic), a reactor of torefaction (RYield), a separator and a splitsparator. The drying process retained at temperature 100°C and torefaction temperature at 275°C, occurring continuously on the tubular reactor. The simulation results show that the mosture content content of MSW has significant effect on the energy requirement in the drying and torefaction process. The energy required for torefaction increased by about 1.6 kW to 3.4 kW in a 30-80% moisture content variation, while solid fuel production decreased by about 2.1 kg/hr to 0.6 kg/hr