ADVANCEMENTS IN HYDROGEN PRODUCTION FROM BIOMASS THERMOCHEMICAL CONVERSION
A comprehensive review was conducted on the technology of hydrogen production from biomass thermochemical conversion.The review included an analysis of the influencing factors of hydrogen production through pyrolysis and reforming,gasification,and supercritical water gasification.These factors comprised raw materials,temperature,catalyst,etc.,as well as the challenges faced,such as tar formation,catalyst deactivation,and input cost.It is suggested that the selection of hydrogen production methods should be based on the characteristics of the raw materials and the hydrogen production conditions.Subsequently,pretreatment and regulation of reaction conditions can be employed to enhance the efficiency of hydrogen production.A comparison of the three technologies indicates that gasification exhibits relatively higher efficiency.Additionally,gasification and pyrolysis are more suitable for biomass with low moisture content,while supercritical water gasification demonstrates advantages in the treatment of toxic wastewater.Moreover,future research directions encompass addressing tar formation,developing catalysts,and investigating equipment preparation.
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