Syngas production method and production apparatus, and liquid fuel synthesis method and synthesis apparatus

摘要

By using bio-liquid fuel as a raw material, it is possible to efficiently obtain a synthesis gas with a good composition that contains almost no soot with a simple device. This enables the production of high-quality liquid fuels such as methanol, gasoline, and light oil. A method for producing a synthesis gas is provided. Bio liquid fuel and water vapor generated by thermal decomposition of biomass are supplied to the gasification space in the reaction tube not filled with the catalyst in the reaction tube, heated to 800 ° C. to 1200 ° C. from the outside through the reaction tube wall, and subjected to endothermic reaction. It causes a steam reforming chemical reaction between steam and bio-liquid fuel. The molar ratio ([H ₂ O] / [C]) of the feed water vapor and the carbon in the bio liquid fuel is set to 0.3 or more, so that tar and dust (soot) are hardly contained, and H ₂ and CO are the main components. A synthesis gas having a good composition is obtained.