▎ 摘　　要

NOVELTY - producing hydrogen by pyrolysis and gasification of biomass, comprises (a) passing biomass raw materials and water vapor into the reaction unit for reaction, and obtaining the first gas-phase stream and the first solid-phase stream after gas-solid separation by the reaction product; and (b) passing the first gas phase stream and water vapor into the purification unit for processing, arranging a first catalyst bed, a second catalyst bed and an adsorbent bed in sequence in the purification unit according to the material flow direction, and processing to obtain second gas-phase stream, where the first catalyst bed is filled with a catalyst with the function of cracking tar, the second catalyst bed is filled with a water-gas shift reaction catalyst, and the adsorbent bed is filled with adsorbent. USE - The method is useful for producing hydrogen by pyrolysis and gasification of biomass. ADVANTAGE - The biomass pyrolysis gasification hydrogen production method ensures the continuous production under the premise of using fixed bed to absorb carbon dioxide, and the calcium-based adsorbent for in-situ regeneration, avoids the mechanical abrasion of the adsorbents, and realizes the biomass high-efficiency gasification gasification and co-production of high value-added biological carbon. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a biomass pyrolysis gasification hydrogen production system. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the biomass pyrolysis gasification hydrogen production method and system (Drawing includes non-English language text). 1Comparative example 2Liquid-solid heat exchange type spiral discharger 3Hydrogen purifying component 11Reaction unit pyrolysis section 12Gasification section 13Cyclone separator 14Material returning pipe 15Steam generator 16One-way sliding valve 22Three-way valve