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Non-premixed Combustion Model of Fluidized Bed Biomass Gasifier for Hydrogen-Rich Gas
Mi Zhou ,Li-feng Yan*,Qing-xiang Guo ,Qing-shi Zhu
Author NameAffiliationE-mail
Mi Zhou Department of Chemical Physics and Biomass Clean Energy Laboratory, Hefei National Laboratory of Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China  
Li-feng Yan* Department of Chemical Physics and Biomass Clean Energy Laboratory, Hefei National Laboratory of Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China lfyan@ustc.edu.cn 
Qing-xiang Guo Department of Chemical Physics and Biomass Clean Energy Laboratory, Hefei National Laboratory of Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China  
Qing-shi Zhu Department of Chemical Physics and Biomass Clean Energy Laboratory, Hefei National Laboratory of Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China  
Abstract:
Fluidized bed biomass gasifiers can be employed to produce hydrogen-rich gas. A non-premixed combustion model is used for biomass air-steam gasification in the gasifier, and the simulations were carried out by using the FLUENT 6.0 software. The simulation results are compared with the experimental data. The effects of the steam to biomass ratio (S/B), the equivalence ratio (ER), and the size of biomass particles on the hydrogen yield were studied. Meanwhile, the distributions of hydrogen inside the gasifier at different conditions are also described.
Key words:  CFD, Biomass, Gasification, Hydrogen
FundProject:
非预混燃烧模型模拟流化床生物质气化器中富氢气体的制备
周密,闫立峰*,郭庆祥,朱清时
摘要:
对用流化床生物质气化器合成富氢气体,建立了基于非预混燃烧的模型对气化器中的生物质在空气-水蒸汽环境中的气化反应过程的模型,并采用流体力学软件FLUENT 6.0对过程进行了模拟.通过模拟结果与实验结果的对比分析发现,水蒸汽与生物质的比、空氧比和生物质颗粒的粒径大小是决定产气中氢气含量的重要参数.同时,对气化器中氢气的分布进行了研究.
关键词:  计算流体力学  生物质  气化  氢气
DOI:10.1360/cjcp2006.19(2).131.6
分类号: