Hydrogen production through biomass gasification in supercritical water: A review from exergy aspect
Hydrogen production through biomass gasification in supercritical water: A review from exergy aspect
复制标题
超临界水生物质气化制氢：火用方面的综述
DOI：
10.1016/j.ijhydene.2019.01.151
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发表时间：
2019-06
影响因子：
7.2
通讯作者：
Bingxi Li
中科院分区：
文献类型：
--
作者：
Yaning Zhang;Liqing Li;Pingfei Xu;Bingxu Liu;Yong Shuai;Bingxi Li
生物质超临界水气化制氢技术已被广泛研究。本文从火用方面综述了影响生物质气化反应的主要因素，包括原料特性、生物质浓度、气化温度、停留时间、反应催化剂和反应器压力。结果表明，制氢的火用效率主要在0.04- 42.05%之间。生物质原料可以通过改变生物质的产氢率和热值来影响制氢。生物质浓度的增加降低了火用效率，气化温度的增加通常增加了火用效率，并且停留时间的增加可能最初增加并最终降低火用效率。反应催化剂对（火用）效率也有积极的影响，其影响顺序为KOH > K2 CO 3> NaOH > Na 2CO 3。反应器压力对火用效率的影响可以是正的、负的或可忽略的。
Hydrogen production through supercritical water gasification (SWG) of biomass has been widely studied. This study reviews the main factors from exergy aspect, and these include feedstock characteristics, biomass concentration, gasification temperature, residence time, reaction catalyst, and reactor pressure. The results show that the exergy efficiencies of hydrogen production are mainly in the range of 0.04–42.05%. Biomass feedstock may affect hydrogen production by changing the H2yield and the heating value of biomass. Increases in biomass concentrations decrease the exergy efficiencies, increases in gasification temperatures generally increase the exergy efficiencies, and increases in residence times may initially increase and finally decrease the exergy efficiencies. Reaction catalysts also have positive effects on the exergy efficiencies, and the reviewed results show that the effects are followed KOH > K2CO3> NaOH > Na2CO3. Reactor pressure may have positive, negative or negligible effects on the exergy efficiencies.
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