基于丙烷催化部分氧化的微管式固体氧化物燃料电池系统特性研究  

Characteristics Research of a Micro-Tubular Solid Oxide Fuel Cell System Based on Catalytic Partial Oxidation of Propane

作　　者：张瑞宇 王雨晴 任佳伟 ZHANG Ruiyu;WANG Yuqing;REN Jiawei(National Key Laboratory on Electromechanical Dynamic Control(Beijing Institute of Technology),Haidian District,Beijing 100081,China;Network Communication Research Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,Hebei Province,China)

机构地区：[1]机电动态控制重点实验室(北京理工大学),北京市海淀区100081 [2]中国电科网络通信研究院,河北省石家庄市050081

出　　处：《发电技术》2024年第3期486-493,共8页Power Generation Technology

基　　金：国家重点研发计划项目(2021YFB4001404)。

摘　　要：【目的】便携式固体氧化物燃料电池(solid oxide fuel cell,SOFC)系统包含气体供给模块、燃料处理模块、SOFC发电模块、热管理模块、尾气处理模块和控制模块等,其中,燃料处理模块与SOFC发电模块之间存在复杂的耦合匹配关系,明确模块间的耦合特性对提升系统性能以及运行寿命十分关键。【方法】分析了温度、碳氧比等因素对以Rh为催化剂的丙烷催化部分氧化(catalytic partial oxidation,CPOx)性能的影响,并进一步测试了CPOx与SOFC电堆的耦合性能。【结果】随着体积空速的升高,CPOx重整效率先升高后下降,100、150 mL/min是较为合适的体积空速;而温度的升高则能一直提升重整效率,但是高温度下相同温度增幅带来的重整效率提升逐渐减小;实验得到的最优碳氧比为1.0;在CPOx的最优工况下,SOFC电堆的性能达到了8.38 W。【结论】在丙烷体积空速150 min^(-1),碳、氧摩尔分数比1.0,工作温度800℃的条件下,SOFC电堆与CPOx的耦合性能最佳,丙烷便携式发电系统在体积为12 L时发电功率达到150 W。[Objectives]A portable solid oxide fuel cell(SOFC)system includes a gas supply module,a fuel processing module,an SOFC power generation module,a thermal management module,an exhaust treatment module and a control module.There is a complex coupling relationship between the fuel processing module and the SOFC power generation module.Clarifying the coupling characteristics between them is crucial for improving system performance and operating time.[Methods]The effects of temperature,the carbon-to-oxygen ratio and other factors on the performance of catalytic partial oxidation(CPOx)of propane with Rh as catalyst were analyzed,and the coupling performance of CPOx and SOFC stack was further tested.[Results]With the increasing of fuel flow rate,the reforming efficiency first increases and then decreases.The most suitable flow rate is 100 or 150 mL/min.An increase in temperature can continuously improve the reforming efficiency,but the improvement in reforming efficiency at high temperatures caused by an increase in temperature gradually decreases.The optimal C/O ratio obtained from the experiment is 1.0.Under the optimal operating conditions,the output power of SOFC stack reaches 8.38 W.[Conclusions]Under the conditions of propane flow rate of 150 min^(-1),carbon and oxygen mole fraction ratio of 1.0,and operating temperature of 800℃,the coupling performance between SOFC stack and CPOx is the best,the portable propane power generation system can generate 150 W of power with a volume of 12 L.

关 键 词：便携式发电设备 固体氧化物燃料电池(SOFC) 催化部分氧化(CPOx) 丙烷 耦合特性 

分 类 号：TK02[动力工程及工程热物理] TM911.4[电气工程—电力电子与电力传动]