摘要
对生物质热化学转化制氢技术进行综述,介绍热解及重整制氢、气化制氢和超临界水气化制氢的影响因素(原料、温度和催化剂等)和面临问题(焦油、催化剂失活和投入成本等),提出由原料特性和制氢条件选择制氢方式,再通过预处理和调控反应条件等可提高制氢效率.将3种技术进行对比,得出气化制氢的效率相对较高,气化和热解更适合含水量低的生物质,超临界水气化制氢在处理有毒废水等方面有优势等结论,并提出焦油的处理、制备催化剂和研发设备等是未来的主要研究方向.
Abstract
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.
基金项目
国家自然科学基金(52006200)
河南省自然科学基金(242300421229)
河南省重点研发与推广专项(科技攻关)(232102321036)
河南省杰出外籍科学家工作室项目(GZS2022007)
维普
万方数据