Patent ID: 6133328
Filing Date: 2000-10-17
Classification: C07C,C10J,C10K,Y02E,Y02P

Abstract:
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.