Abstract: Method and system for producing synthesis gas by partial oxidation of a carbonaceous stream, wherein the partial oxidation is controlled using an oxygen to carbon ratio (O/C ratio). A carbonaceous stream and an oxygen containing stream is fed into a gasification reactor at a selected O/C ratio, where it is at least partially oxidized. A gaseous product stream is thereby obtained, which at least contains synthesis gas, CO2 and possibly CH4. The content of CO2 in the product stream is determined, and compared with a pre-determined content thereby possibly obtaining a difference value between the determined content and the pre-determined content. The O/C ratio in step is adjusted based on the difference value.

Abstract: The invention is directed to a process for preparing a mixture comprising CO and H2 by operating a partial oxidation process of a solid carbonaceous feed, which process comprises the steps of: (a) supplying the solid carbonaceous feed and an oxygen-containing stream to a burner, wherein a CO2 containing transport gas is used to transport the solid carbonaceous feed to the burner; (b) partially oxidizing the carbonaceous feed in the burner wherein a gaseous stream comprising CO and H2 is being discharged from said burner into a reaction zone, wherein the temperature in the reaction zone is from 1200 to 1800° C.

Abstract: The invention is directed to a process for preparing a mixture comprising CO and H2 by operating a partial oxidation process of a solid carbonaceous feed, which process comprises the steps of: (a) supplying the solid carbonaceous feed and an oxygen-containing stream to a burner, wherein a CO2 containing transport gas is used to transport the solid carbonaceous feed to the burner; (b) partially oxidising the carbonaceous feed in the burner wherein a gaseous stream comprising CO and H2 is being discharged from said burner into a reaction zone, wherein the temperature in the reaction zone is from 1200 to 1800° C.