Cooling of a Diesel Reformate Fuelled Solid Oxide Fuel Cell by Internal Reforming of Methane: A Modelling Study

doi:10.1016/S1004-9541(13)60485-5

Chinese Journal of Chemical Engineering ›› 2013, Vol. 21 ›› Issue (3): 324-331.DOI: 10.1016/S1004-9541(13)60485-5

• 能源、资源与环境技术 • 上一篇下一篇

Cooling of a Diesel Reformate Fuelled Solid Oxide Fuel Cell by Internal Reforming of Methane: A Modelling Study

黄肖微¹, Alexander Kromp²

1 Engler-Bunte-Institute—Division of Fuel Chemistry and Technology, University Karlsruhe, and Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany;
2 The Institute of Materials for Electrical and Electronic Engineering, University Karlsruhe, and Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany

收稿日期:2011-08-08 修回日期:2012-10-26 出版日期:2013-03-28 发布日期:2013-04-01
通讯作者: HUANG Xiaowei
基金资助:
Supported by the Ministry of the Environment, Climate Protection and the Energy Sector, Baden-Wuettermberg.

Cooling of a Diesel Reformate Fuelled Solid Oxide Fuel Cell by Internal Reforming of Methane: A Modelling Study

HUANG Xiaowei¹, Alexander Kromp²

1 Engler-Bunte-Institute—Division of Fuel Chemistry and Technology, University Karlsruhe, and Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany;
2 The Institute of Materials for Electrical and Electronic Engineering, University Karlsruhe, and Karlsruhe Institute of Technology, 76131 Karlsruhe, Germany

Received:2011-08-08 Revised:2012-10-26 Online:2013-03-28 Published:2013-04-01
Supported by:
Supported by the Ministry of the Environment, Climate Protection and the Energy Sector, Baden-Wuettermberg.

摘要/Abstract

摘要： In this paper a system combining a diesel reformer using catalytic partial oxidation (CPOX) with the Solid Oxide Fuel Cell (SOFC) for Auxiliary Power Unit (APU) applications is modeled with respect to the cooling effect provided by internal reforming of methane in anode gas channel. A model mixture consisting of 80% n-hexadecane and 20% 1-methylnaphthalin is used to simulate the commercial diesel. The modelling consists of several steps. First, equilibrium gas composition at the exit of CPOX reformer is modelled in terms oxygen to carbon (O/C) ratio, fuel utilization ratio and anode gas recirculation. Second, product composition, especially methane content, is determined for the methanation process at the operating temperatures ranging from 500 ℃ to 520 ℃. Finally, the cooling power provided by internal reforming of methane in SOFC fuel channel is calculated for two concepts to increase the methane content of the diesel reformate. The results show that the first concept, operating the diesel reformer at low O/C ratio and/or recirculation ratio, is not realizable due to high probability of coke formation, whereas the second concept, combining a methanation process with CPOX, can provide a significant cooling effect in addition to the conventional cooling concept which needs higher levels of excess air.

关键词: diesel reformate, methanation, internal reforming, cooling, model, solid oxide fuel cell-auxiliary power unit

Abstract: In this paper a system combining a diesel reformer using catalytic partial oxidation (CPOX) with the Solid Oxide Fuel Cell (SOFC) for Auxiliary Power Unit (APU) applications is modeled with respect to the cooling effect provided by internal reforming of methane in anode gas channel. A model mixture consisting of 80% n-hexadecane and 20% 1-methylnaphthalin is used to simulate the commercial diesel. The modelling consists of several steps. First, equilibrium gas composition at the exit of CPOX reformer is modelled in terms oxygen to carbon (O/C) ratio, fuel utilization ratio and anode gas recirculation. Second, product composition, especially methane content, is determined for the methanation process at the operating temperatures ranging from 500 ℃ to 520 ℃. Finally, the cooling power provided by internal reforming of methane in SOFC fuel channel is calculated for two concepts to increase the methane content of the diesel reformate. The results show that the first concept, operating the diesel reformer at low O/C ratio and/or recirculation ratio, is not realizable due to high probability of coke formation, whereas the second concept, combining a methanation process with CPOX, can provide a significant cooling effect in addition to the conventional cooling concept which needs higher levels of excess air.

Key words: diesel reformate, methanation, internal reforming, cooling, model, solid oxide fuel cell-auxiliary power unit

黄肖微, Alexander Kromp. Cooling of a Diesel Reformate Fuelled Solid Oxide Fuel Cell by Internal Reforming of Methane: A Modelling Study[J]. Chinese Journal of Chemical Engineering, 2013, 21(3): 324-331.

HUANG Xiaowei, Alexander Kromp. Cooling of a Diesel Reformate Fuelled Solid Oxide Fuel Cell by Internal Reforming of Methane: A Modelling Study[J]. Chin.J.Chem.Eng., 2013, 21(3): 324-331.

参考文献

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Cooling of a Diesel Reformate Fuelled Solid Oxide Fuel Cell by Internal Reforming of Methane: A Modelling Study

Cooling of a Diesel Reformate Fuelled Solid Oxide Fuel Cell by Internal Reforming of Methane: A Modelling Study

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