NOVELTY - Producing synthesis gas, comprises: introducing a feed material to be gasified into a gasification apparatus (200) comprising at least one fluidized component operable as a fluidized bed, where the gasification apparatus is configured to convert at least a portion of the feed material into a gasifier product gas comprising synthesis gas; and maintaining fluidization of the fluidized component by introducing a fluidization gas to it, where the fluidization gas comprises at least one component other than steam.    USE - The method is useful for producing synthesis gas, which is useful for producing a desired product of power, Fischer-Tropsch hydrocarbons or non-Fischer-Tropsch chemicals (all claimed), where the synthesis gas is hydrogen and carbon monoxide.    ADVANTAGE - The method reduces the amount of steam requirement, enables utilization of an alternate gasifier fluidization gas that is tailgas or product synthesis gas, where the utilization of the alternate gas enables the production of additional synthesis gas.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a system for the production of synthesis gas, comprising the gasification apparatus configured to convert at least a portion of a gasifier feed material introduced into a gasification product gas comprising synthesis gas having a molar ratio of hydrogen to carbon monoxide, where the gasification apparatus comprises at least one vessel configured for fluidization of the contents via introduction of a fluidization gas comprising at least one non-steam component, at least one additional apparatus comprising feed preparation apparatus located upstream of the gasification apparatus and configured to prepare a carbonaceous material for introduction into the gasification apparatus, synthesis gas conditioning apparatus (300) configured to produce a conditioned synthesis gas having a molar ratio of hydrogen to carbon monoxide that is different from the molar ratio of hydrogen to carbon monoxide in the gasification product gas, and a reduced amount of at least one component relative to the amount of that component in the gasification product gas, or both, and synthesis gas utilization apparatus (400) configured to convert at least a portion of the synthesis gas into a desired product, and at least one line fluidly connecting the additional apparatus or an outlet of the gasification apparatus with the vessel of the gasification apparatus, a gas from the additional apparatus or exiting the gasification apparatus may provide the non-steam component of the fluidization gas.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic view of a gasification system.    Gasifier feed preparation apparatus (100)    Raw feed inlet line (105)    Gasification apparatus (200)    Synthesis gas conditioning apparatus (300)    Synthesis gas utilization apparatus. (400)