NOVELTY - Converting biomass reactant into synthesis gas (100) involves heating biomass in first molten metal or molten ionic liquid bath at 100 degrees C to yielding dried biomass and steam, and capturing the steam; incorporating the steam into process gas; heating the dried biomass in second molten metal or molten ionic liquid bath to yielding product gases, tar, and char (210); and reacting the product gases, tar, and char with the process gas from steam step within third molten metal or molten ionic liquid bath to yielding synthesis gas via gasification and reforming reactions.    USE - For converting a biomass reactant into synthesis gas (claimed).    ADVANTAGE - The method provides quality and relatively clean synthesis gas after a relatively long residence time needed for char gasification; has high heat transfer rates and a wide range of operating temperatures, using them as energy carriers in biomass gasifier provides reduce system complexity, size, and costs; also eliminate the need for an external water source and separation devices by radically altering the gasifier and combustion chambers; and reduces the expense associated with maintaining separation devices and does not require access to water.    DETAILED DESCRIPTION - Converting a biomass reactant into synthesis gas (100) involves heating biomass in first molten metal or molten ionic liquid bath at first temperature at 100 degrees C, but less than the decomposition temperature of the biomass, to yielding dried biomass and steam, and capturing the steam; incorporating the steam into process gas; heating the dried biomass in a second molten metal or molten ionic liquid bath at a second temperature is high to cause flash pyrolysis of dried biomass, to yielding product gases, tar, and char; and reacting the product gases, tar, and char (210) with the process gas from steam step within a third molten metal or molten ionic liquid bath at third temperature which is greater than or equal to second temperature within the second bath, to yielding synthesis gas via gasification and reforming reactions. The method further involves combusting a portion of synthesis gas to heat the first, second, and third molten baths; combusting an external source of natural gas or hydrogen gas to heat the first, second, and third molten baths; incorporating a gas selected from natural gas, hydrogen gas, recycled synthesis gas, flue-condensed water, and combinations into the process gas. The molten metal in each of the first second, and third baths comprises a metal selected from gallium, indium, lead, and alloys. An INDEPENDENT CLAIM is included for apparatus for converting biomass into synthesis gas comprising a first molten liquid bath dimensioned and configured to maintain molten liquid at a first temperature suitable for drying a biomass reactant without degrading the biomass reactant, to yield dried biomass and process gas comprising water, where the first bath is dimensioned and configured to transfer molten liquid and dried biomass contained in it to second molten liquid bath dimensioned and configured to maintain a molten liquid at a second temperature suitable for fast pyrolyzing the dried biomass to yield gas, tar, and char, where the second bath is dimensioned and configured to transfer molten liquid, contained in it to third molten liquid bath dimensioned and configured to maintain a molten liquid at a third temperature suitable for reforming gas, tar, and char into synthesis gas, where the third bath is dimensioned and configured to transfer molten liquid, tar, and char contained there to a separator dimensioned and configured to separate tar and char from the molten liquid to yield clean molten liquid, where the separator is also operationally connected to the first molten liquid bath and dimensioned and configured to transfer clean molten liquid from the separator to the first molten liquid bath;a conduit operationally connecting the first molten liquid bath to the second molten liquid bath and a process gas reservoir, where the conduit is dimensioned and configured to transfer moisture from the first molten liquid bath to the second molten liquid bath and the process gas reservoir; and a conduit operationally connecting the process gas reservoir to the third molten liquid bath, where the conduit is dimensioned and configured to transfer moisture from the process gas reservoir to the third molten liquid bath; a conveyor assembly dimensioned and configured to move the dried biomass from the first molten liquid bath to the second molten liquid bath, to move char from the second molten liquid bath to the char crusher, and to move powdered char from the char crusher to the third molten liquid bath; a conduit operationally connecting the first molten liquid bath to the second molten liquid bath and process gas reservoir, where the conduit is dimensioned and configured to transfer moisture from the first molten liquid bath to the second molten liquid bath and the process gas reservoir; and a conduit operationally connecting the process gas reservoir to the third molten liquid bath, where the conduit is dimensioned and configured to transfer moisture from the process gas reservoir to the third molten liquid bath.    DESCRIPTION OF DRAWING(S) - The figure shows schematic diagram of apparatus for converting biomass into synthesis gas.    Natural gas (60)    Synthesis gas (100)    Pyrolysis tar, gas and char (210)    Biomass feedstock (226)    Char crusher (230)