[1]李传统.甲烷制备高纯度氢气的实验研究[J].南京师范大学学报(工程技术版),2004,04(04):028-31.
　LI Chuantong.Studies on Producing Hydrogen with High Concentration from Methane[J].Journal of Nanjing Normal University(Engineering and Technology),2004,04(04):028-31.
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甲烷制备高纯度氢气的实验研究
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南京师范大学学报（工程技术版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
04卷
期数:
2004年04期
页码:
028-31
栏目:
出版日期:
2004-12-30

文章信息/Info

Title:
Studies on Producing Hydrogen with High Concentration from Methane
作者:
李传统
南京师范大学动力工程学院 江苏南京210042
Author(s):
LI Chuantong
School of Power Engineering, Nanjing Normal University, Nanjing 210042, China
关键词:
氢气制备;  膜;  质子交换膜燃料电池
Keywords:
hydrogen production;  methane;  proton exchange membrane fuel cell
分类号:
TM911.4
摘要:
对甲烷制备可供质子交换膜燃料电池 (PEMFC)用的高纯度氢气进行了实验研究 ,得出了不同蒸汽 /碳比值时甲烷的转化率、不同过量空气系数对制备气体成分的影响、不同压差时氢气在选择性膜中的渗透率以及不同系统压力对氢气反应焓的影响规律 .研究结果表明 ,在蒸汽与甲烷中的碳比例一定时 ,蒸汽重整反应器内的反应速率和它出口处CO的浓度 ,随甲烷的流量的增加而提高 .提高甲烷蒸汽重整系统的工作温度和压力 ,可以提高甲烷的转化率 ,在S/C比值不变的情况下 ,仅提高温度可提高甲烷的转化率约 10 %;而将工作压力由 0 .1MPa提高到 0 .6MPa ,甲烷的转化率提高约 2 1%.甲烷的理论转化率为 84.6%,本文实验研究中的最大实际转化率为 78.0 3 %,实验研究系统的系统完善度为 92 .2 3 %,说明该系统还有待完善之处 ,还可以进一步提高甲烷的转化率 .增大PEMFC中选择性膜两侧的压差或提高氢气的纯度 ,均利于提高氢气混合物的渗透率 .该研究为制备符合PEMFC使用条件的氢气提供了可靠依据 ,同时为综合利用煤层气提供了新的途径 .
Abstract:
The hydrogen production from methane for proton ex change membrane fuel cell ( PEMFC) has been studied. The conversion rate of methane at different steam- carbon ratios, the effect of different excess air ratios on the constituents of the gas produced, the permeability of hydrogen by the pressure differences of the two sides of the membrane, and the effect of different system pressure on the reaction enthalpy of hydrogen have been obtained. The paper describes the fact that the ratio of steam to carbon in methane is constant, the reactivity in the steam reforming reactor and the CO concentration at the outlet of the steam reforming reactor will rise with the increase of the flow rate of methane. If S/ C is not changed, the conversion rate of methane under different pressure and temperature has shown that the increase of the operating pressure from 0. 1MPa to 0. 6MPa and the temperature in the system can increase the methane conversion rate by ca. 21% and ca. 10% respectively. In PEMFC, the steam reforming method can be applied to produce hydrogen with high concentration to meet the requirements of PEMFC. A-l though the perfectibility of this system can reach 92. 23%, the real maximum conversion rate is 78. 03%, which should be improved. Both the increase of the pressure difference of the two sides of the membrane and the purity of the hydrogen contribute to the enhancement of its permeability . The results have laid the basis for the production of hydrogen applicable to PEMFC and provided a new approach to the comprehensive utilization of the coal bed methane.

参考文献/References:

[ 1] Robert F. New tigers in the fuel cell tank[ J] . Science, 2000, 288: 1955- 1957.
[ 2 ] Weindorf W, Bǖnger U. Verfahren zur Reinigung von Wasserstoff aus der Erdgasdampfreformierung fǖr den Einsatz in Brennstoffzellen [ J] . Brennstof-f Wā rme-Kraft, 1997, 11 ( 8) : 28- 33.

备注/Memo

备注/Memo:
基金项目: 南京师范大学引进人才基金资助项目( 2002DLYXGQ2B07) .
作者简介: 李传统( 1954- ) , 博士, 教授, 主要从事能源与环境工程方面的教学与研究. E-mail: lict2003@hotmail. com
更新日期/Last Update: 2013-04-29