【作者】 齐随涛； 杨伯伦； 蔡运隆；

【Author】 Qi Suitao Yang Bolun Cai Yunlong School of Energy and Power Engineering,Xi’an Jiaotong University,Xi’an 710049 China

【机构】 西安交通大学能源与动力工程学院化学工程系；

【摘要】 对国内外三种 H₂S 燃料电池技术如固体氧化物燃料电池（SOFC）、接有 H₂S 处理装置的固体氧化物燃料电池（D-SOFC）和质子交换膜燃料电池（PEMFC） 的质能复合共生体系,运用共生耦合理论,建立了脱硫/产电、产硫/产电、产硫/ 热利用三个共生子系统,并以 H₂S 浓度/进料速率、硫产量、产电功率作为上述体系的主质参量,得到其相应的特征共生度表达式,进行了共生分析。分析结果表明：三种燃料电池的共生关系基本相同,对于脱硫/产电子系统,H₂S 浓度与产电功率之间为反向非对称共生关系,而其进料速率和产电功率之间为正向对称共生, 可通过调节 H₂S 浓度和进料速率对产电单元进行优化。对于产硫/产电和产硫/热利用子系统,它们之间关系均为正向对称共生,表明其处于共生稳定状态。此外还对三种燃料电池体系进行了共生效益比较,发现三者均具有正向共生效益,其中 SOFC 与 PEMFC 的共生效益相当,而 D-SOFC 具有更高的共生效益。更多还原

【Abstract】 Three fuel cells including solid oxide fuel cell（SOFC）, proton-exchanging membrane fuel cell（PEMFC）and solid oxide fuel cell with H₂S-disposal unit（D-SOFC）using H₂S as fuel are analyzed based on the symbisos theory,the desulfurization/electricity production,the sulfur production/electricity production and the sulfur production/heat utilization three symbisos subsystems are built,H₂S concentration/feed rate,sulfur yield and electricity yield are introduced as the primary quality parameters of the above systems.The corresponding characteristic symbiotical degrees are obtained via the analysis of the thermodynamics and electrochemistry.The results indicate that the symbiotical relationships of three fuel cells are the same on the whole.For the desulfurization/electricity production,the relationships of H₂S concentration and electricity yield is reverse asymmetrical symbisos,whereas that of H₂S feed rate and electricity yield is plus symmetrical symbisos,the optimization of the electricity production can be achieved by adjusting H₂S concentration/feed rate.For the sulfur production/electricity production and sulfur production/heat utilization subsystem,the relationships are the plus symmetrical symbisos,which showed they are at symbiotical stabilization.The comparison of symbiotical benefit on three fuel cells disclosed that they are all have plus symbiotical benefit,in which the symbiotical benefit of the SOFC and PEMFC are equivalent,D-SOFC have the higher plus symbiotical benefit.更多还原