Patent ID: 8445548

Claim:
A process for the preparation of low-tar syngas, from organic wastes and converting optionally the syngas to methanol or preparing methanol from separated carbon dioxide, which comprises introducing secondary raw material into a double-flow one-body generator comprising an inner pyrolysing, oxidizing and reducing zone and converting obtained pyrolysis coke, pyrolysis water and tar formed by the aid of the heat content of gas flowing upwards in an outer gas space by blowing oxygen into a fixed bed of the pyrolysis coke, to a raw syngas comprising carbon dioxide, carbon monoxide and hydrogen, on the fixed bed of the pyrolysis coke at a temperature of 600-1200° C. and a liquid containing liquid hydrocarbons or a powder of high carbon content are optionally added in order to control the temperature, and hydrohalides are removed from the obtained raw syngas on a calcium carbonate bed at 200-700 ° C., the heat content of the raw syngas is utilized, carbon dioxide is removed, and carbon dioxide is converted to methanol by using an external hydrogen source and the obtained syngas is optionally also converted to methanol.