Abstract Hydrogen energy and polymer electrolyte membrane (PEM) fuel cells become concerned issues in recent years. Nevertheless, the construction of hydrogen refueling infrastructure and hydrogen storage and transportation constrains the commercial development of fuel cells. In this review, sources, production, storage, transportation, and purification methods of hydrogen are extensively reviewed and compared. The advantages of utilizing industrial by-product hydrogen and steam reforming gas in PEM fuel cell systems are analyzed. Using industrial wasted hydrogen can significantly reduce the cost of hydrogen. Also, it is indicated that the onboard hydrogen generation by steam methanol reforming can solve the difficulties of efficient storage and transportation of gaseous hydrogen, which means that methanol has great potential to be a convenient carrier of hydrogen. The effects of impurities contained in the reformate gas are generally introduced. After the methanol steam reforming and pretreatment purification processes, the reformate gas can be fed to PEM fuel cells. Thus, a fuel cell system integrated with onboard hydrogen production and impure hydrogen treatment subsystems is introduced, and key technologies therein for pretreatment purification and in-situ poisoning mitigation methods are reviewed. Finally, suggestions are proposed for further studies.

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以不纯氢为燃料的聚合物电解质膜燃料电池系统关键技术

摘要 氢能和聚合物电解质膜（PEM）燃料电池是近年来备受关注的问题。然而，加氢基础设施和氢储运的建设制约了燃料电池的商业发展。在这篇综述中，对氢气的来源、生产、储存、运输和纯化方法进行了广泛的回顾和比较。分析了在PEM燃料电池系统中利用工业副产氢和蒸汽重整气体的优势。利用工业废氢可显着降低氢气成本。同时表明，汽甲醇重整车载制氢可以解决气态氢的高效储运难题，这意味着甲醇有很大潜力成为方便的氢气载体。一般引入重整气中所含杂质的影响。在甲醇蒸汽重整和预处理净化过程之后，重整气可以被送入 PEM 燃料电池。因此，介绍了一种集成了车载制氢和不纯氢处理子系统的燃料电池系统，并综述了其中预处理净化和原位中毒缓解方法的关键技术。最后提出了进一步研究的建议。介绍了集成车载制氢和不纯氢处理子系统的燃料电池系统，综述了其中预处理净化和原位缓解中毒方法的关键技术。最后提出了进一步研究的建议。介绍了集成车载制氢和不纯氢处理子系统的燃料电池系统，综述了其中预处理净化和原位缓解中毒方法的关键技术。最后提出了进一步研究的建议。