生物质超临界水气化制氢技术的研究进展

Research progress in hydrogen production from biomass via supercritical water gasification

生物质是一种重要的可再生原料,资源总量十分丰富,是世界第四大能源,但由于其结构疏松,能量密度低,直接利用效率低。生物质超临界水气化制氢是近年来发展起来的一种高效、清洁的制氢技术。本文阐述了生物质超临界水气化制氢技术的特点与研究现状,重点论述了温度、压力、反应物浓度、停留时间及催化剂等操作条件对反应过程的影响机理,介绍了不同形式的反应装置。在此基础上,针对该技术所面临的问题,对其研究前景和发展方向进行了展望。

Biomass is a significant and abundant renewable resource and the world＇s fourth largest energy, however, due to its loose structure and low energy density, biomass has low direct use efficiency. Hydrogen production from biomass via supercritical water gasification（SWG） is a recently developed clean and efficiency hydrogen production technology. The characteristics and research progress of hydrogen production from biomass via SWG were introduced, including the effects of temperature, pressure,reactant concentration, residence time and catalysts on this process and the different type equipment used for the this process. Based on these and considering the problems existed in this process, the prospect and development direction were forecasted.