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Thermodynamic analysis and experimental verification of hydrogen production from dimethyl ether partial oxidation reforming
Song Lingjun, Li Xinghu*
School of Transportation Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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ժҪ ��Ԫ�����ܷ��Զ�����(DME)�������������������������ѧ���������,�ڶ�ѹ���������¼����˲����и���ֵ������������ѱ�(0.5~4)��ѹǿ(0.1~��0.5��MPa��)�ı仯��ϵ.�������:H2�����������ѹǿ���������С;�ڱ�׼����ѹ�Ϳ��ѱ�Ϊ3��������,�ɶ����Ѳ���������Ӧ�õ�����������������,ԼΪ35%;H2�������������ѱȵ������������,CO����������仯������,CO2��CH4�������������ѱȵ��������С.���,������ʵ��̨�Ͻ��ж����ѵ����������������ʵ��,����ʵ����������ѧ������������˶Աȷ���,���֤����Ԫ�����ܷ������õ���H2,CO,CH4��CO2�������������ѱȵı仯������ʵ������Ϊһ��.
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Abstract�� Thermodynamic analysis was carried out for theoretical reaction of hydrogen produced from dimethyl ether(DME) partial oxidation reforming by using the element-potential method. The gas concentrations in the product gas were calculated under the constant-pressure and adiabatic condition as a function of air-to-DME ratio(0.5~4) and pressure(0.1~0.5MPa). The result proves that H2 concentration decreases with increasing of pressure. H2 concentration produces from DME partial oxidation reaction is the largest under atmosphere when air-to-DME ratio is about 3. The maximum is about 35%. By increasing air-to-DME ratio, H2 concentration increases firstly and then decreases, and CO concentration doesn-t changes obviously, and the concentration of CO2 and CH4 decreased respectively. Adiabatic temperature increases with increasing of air-to-DME ratio. At last, the experiment of hydrogen-rich gas produces from plasma reforming of DME is carried out on self-made equipments to verify the analysis, it proves that the concentration of H2,CO,CO2 and CH4 as a function of air-to-DME ratio analyzed by the element-potential method is almost in agreement with the experimental result.
Keywords�� reforming   hydrogen production   thermodynamic analysis   element-potential method   dimethyl ether     
Received 2007-12-10;
Fund:

������ȫ����ܹ����ص�ʵ���ҿ��Ż���������Ŀ(KF2005-10)

About author: ����B(1983-),Ů,������������,��ʿ��,sljfrances@ae.buaa.edu.cn.
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����B, ���˻�.�����Ѳ�������������������ѧ������ʵ��[J]  �������պ����ѧѧ��, 2008,V34(11): 1307-1310
Song Lingjun, Li Xinghu.Thermodynamic analysis and experimental verification of hydrogen production from dimethyl ether partial oxidation reforming[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2008,V34(11): 1307-1310
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