Abstract
This paper describes a new system combining fossil fuel with sustainable energy to produce liquid fuel like methanol with CO2 zero emission process. In this system, the heat required for endothermic reaction is supplied from the sustainable energy such as hydraulic-, solar-, or wind-generated power. Preheating technology of coal-water mixture (CWM) is the core technology to realize the process, because sustainable energy is used as vaporization of water and decreases oxygen consumption in the gasifiers. Water in CWM was continuously vaporized with a preheater and steam and dry coal fine particles were atomized in a tube and fed to the pressure vessel or the combustion chamber, using experimental unit with a capacity of 2 ton/day-coal. The internal autothermal steam reforming of methane is also the core technology to avoid CO2 emission. The new reactor consists of packed layers with oxidation and reforming catalysts. The bench-scale test with feed flow rates of 1 Nm3/h was conducted to gather process design data.
