| Ca(OH)2对生物质水蒸气气化制氢的影响 |
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| 引用本文： | 黄浩,胡国新.Ca(OH)2对生物质水蒸气气化制氢的影响[J].上海交通大学学报,2007,41(12):1930-1933. |
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| 作者姓名： | 黄浩 胡国新 |
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| 作者单位： | 上海交通大学,机械与动力工程学院,上海,200240 |
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| 摘 要： | 提出一种新型的生物质水蒸气气化制氢方法.该方法在生物质水蒸气气化过程中添加CO2吸收剂,旨在通过吸收CO2促进产氢反应向着氢气产生方向进行,从而提高产氢量.分析了Ca(OH)2、水蒸气、温度和保持时间对产氢量以及产气组分百分比的影响,结果表明:在生物质水蒸气气化过程中添加CO2吸收剂能显著提高产氢量;随着Ca(OH)2的增加产氢量先升高后略微降低,Ca(OH)2对水煤气反应的影响要明显强于对甲烷水蒸气重整反应的影响;产氢量随水蒸气的增加先升高后降低;产氢量随温度的升高迅速增加;充足的保持时间可以使制氢反应进行彻底.
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| 关 键 词： | 生物质 CO2吸收剂 水蒸气气化 制氢 |
| 文章编号： | 1006-2467（2007）12-1930-04 |
| 收稿时间： | 2006-10-15 |
| 修稿时间： | 2006年10月15 |
The Influence of Ca(OH)2 on Hydrogen Production from Biomass by Steam Gasification |
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| HUANG Hao,HU Guo-xin.The Influence of Ca(OH)2 on Hydrogen Production from Biomass by Steam Gasification[J].Journal of Shanghai Jiaotong University,2007,41(12):1930-1933. |
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| Authors: | HUANG Hao HU Guo-xin |
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| Abstract: | A novel hydrogen production in which Ca(OH)_2 is adopted as a CO_2 sorbent to increase H_2 yield in the process of hydrogen production from woody biomass by steam gasification was proposed.The influences of the amount of Ca(OH)_2 and steam,reaction temperature,and holding time on H_2 yield and gas composition were investigated.The experimental results show that H_2 yield increases significantly under the catalysis of Ca(OH)_2.With the increasing of the amount of Ca(OH)_2,H_2 yield increases firstly,and then decreases slightly.Furthermore,Ca(OH)_2 has a stronger effect on water gas shift reaction than on steam reforming of methane. Higher temperature contributes to more hydrogen production.The introduction of steam greatly increases H_2 yield.However,excessive steam would lower gasification temperature and H_2 yield.In addition,enough holding time is necessary for hydrogen production. |
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| Keywords: | biomass CO_2 sorbent steam gasification hydrogen production |
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