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This is a method to furnish synthesis gas obtained from a biomass. A description of a synthesis gas production method is presented by providing a supply of biomass, air and steam to a vessel. A heat exchanger is provided for heating ambient air to provide a supply of heated air to the vessel and a d

This is a method to furnish synthesis gas obtained from a biomass. A description of a synthesis gas production method is presented by providing a supply of biomass, air and steam to a vessel. A heat exchanger is provided for heating ambient air to provide a supply of heated air to the vessel and a dryer is provided to remove moisture from a biomass to provide a supply of substantially moisture free biomass to the vessel. Subsequently reacting with the substantially moisture free biomass in the vessel with the heated air forms incandescent carbon and a flue gas. A bed of solids for storage of thermal sensible heat from the flue gas is provided. Upon turning off the heated air, a supply of steam, created from water provided to the heated bed of solids, is employed to purge the remaining flue gas and form a blanket of steam above the incandescent carbon. When the carbon is incandescent, and the heated air is turned off, steam is added to the steam blanketed incandescent carbon to create a water gas containing hydrogen and carbon monoxide. The procedure is then repeated. The water gas is modified by reaction with steam to produce additional hydrogen to form an adjusted syngas with a mole ratio of hydrogen to carbon monoxide of about 2. Combustion residue from the biomass is separated from the carbon for disposition or disposal.

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[ What is claimed is:] [1.] A method to produce synthesis gas from a biomass, which comprises:providing a supply of substantially moisture free biomass, andproviding a supply of heated air to said vessel; andproviding a heat exchanger to heat air to provide a supply of heated air to said vessel; and

[ What is claimed is:] [1.] A method to produce synthesis gas from a biomass, which comprises:providing a supply of substantially moisture free biomass, andproviding a supply of heated air to said vessel; andproviding a heat exchanger to heat air to provide a supply of heated air to said vessel; andproviding a vessel for reaction of said substantially moisture free biomass; andproviding a bed of solids for storage of sensible heat; andproviding a supply of water to said bed of solids containing stored sensible heat, andproviding a dryer to remove moisture from a biomass, andreacting said substantially moisture free biomass in said vessel with said heated air to form incandescent carbon and a flue gas, andheating ambient air with said heat exchanger supplied from sensible heat in said flue gas to provide said heated air to said vessel, andstoring sensible heat from said flue gas to store heat in said bed of solids, anddrying a biomass in said dryer with said flue gas to remove moisture from a biomass to produce substantially moisture free biomass, andadding said water to said bed of solids containing stored heat to provide a supply of steam, andproviding a supply of steam from said bed of solids to said vessel; andreacting said incandescent carbon with said steam to form a water gas, andreacting said water gas with steam to produce a synthesis gas thereby synthesis gas is produced from a biomass.