A comparative study on hydrogen production from steam-glycerol reforming: thermodynamics and experimental
A comparative study on hydrogen production from steam-glycerol reforming: thermodynamics and experimental
复制标题
蒸汽-甘油重整制氢的比较研究：热力学和实验
DOI：
10.1016/j.renene.2010.07.026
复制
发表时间：
2011-02-01
期刊：
影响因子：
8.7
通讯作者：
Williams, Paul T.
中科院分区：
文献类型：
--
作者：
Chen, Haisheng;Ding, Yulong;Williams, Paul T.
对甘油重整制氢的热力学和实验分析进行了详细的对比研究，包括温度、压力、水甘油进料比、进料气体比和进料气体流量（停留时间）的影响。通过使用基于吉布斯自由能最小化的非化学计量方法进行热力学分析。并在中试装置上进行了实验。结果表明，热力学数据与实验数据吻合较好。测得的产氢量略低于热力学分析预测的产氢量，这主要是因为水蒸气转化不完全。高温、低压、低进料比和低气体流量有利于甘油水蒸气重整制氢。存在用于甘油蒸汽重整制氢的最佳水与甘油进料比，其为约9.0。甘油转化率是水与甘油比率的强函数，而在本工作的条件下是其他参数的弱函数。提出了一种新的吸附强化反应过程，包括水和热回收，以进一步优化甘油水蒸气重整制氢。(C)2010爱思唯尔有限公司版权所有。
A detailed comparative study on thermodynamic and experimental analyses of glycerol reforming for hydrogen production has been conducted in terms of the effects of temperature, pressure, water to glycerol feed ratio, feeding reactants to inert gas ratio and feeding gas flow rate (residence time). The thermodynamic analysis was conducted by using a non-stoichiometric methodology based on the minimisation of Gibbs free energy. And the experiments were carried out with a pilot scale set-up. The results show that the thermodynamic and experimental data agree fairly well with each other. The measured hydrogen production is slightly lower than that predicted by the thermodynamic analysis, which is mainly because the conversion of steam is incomplete. High temperature, low pressure, low feeding reactants to inert gas ratio and low gas flow rate are favourable for steam reforming of glycerol for hydrogen production. There is an optimal water to glycerol feed ratio for steam reforming of glycerol for hydrogen production which is about 9.0. The glycerol conversion is a strong function of water to glycerol ratio, whereas a weak function of other parameters over the conditions of this work. A novel adsorption enhanced reaction process incorporating water and heat recovery is proposed for further optimisation of hydrogen production from steam reforming of glycerol. (C) 2010 Elsevier Ltd. All rights reserved.