Method of producing a syngas composition

摘要

A method of producing a syngas composition. The method comprises providing a biomass raw-material; feeding the raw-material into a gasification zone, wherein it is gasified by oxygen-blown gasification to produce a syngas composition containing carbon monoxide, carbon dioxide, hydrogen and hydrocarbons along with carbon solids entrained therein; and withdrawing the syngas composition from the gasification zone. According to the invention, the syngas composition withdrawn from the gasification zone is fed into a carbon bed reaction zone; and at least a part of the carbon dioxide is converted into carbon monoxide by a Boudourd reaction. The carbon solids entrained in the syngas can be used as a part of the carbon of the carbon bed where they will take part in the reaction to further increase the conversion of carbon dioxide.