摘要
基于固体氧化物燃料电池(SOFC)的烃类原位重整供氢技术是重要的分布式和小型化制氢方案。传统镍基重整催化剂在烃类重整过程中,原料中微量的硫化物即可使催化剂中毒失活,严重时还可能造成巨大的安全隐患。本文梳理总结了催化剂硫中毒的机理,简述了天然气、液化石油气、液态烃重整原料中硫化物的组成和含量,重点分析了已报道的用于重整反应的抗硫催化剂并总结了有效可行的催化剂抗硫方案,并从重整制氢催化剂的硫中毒机理指导高效抗硫催化剂的开发。最后,文章指出,重整催化综合性能的提升、重整原料的预处理和重整反应器设计等综合抗硫策略也是重要的研究方向。
Hydrocarbon in-situ reforming hydrogen supply technology based on solid oxide fuel cell(SOFC)is an important distributed and miniaturized hydrogen production solution.Traditional nickel-based reforming catalysts often face sulfur poisoning during the reaction with trace amount of sulfur in the feedstock.In some cases,the existing sulfur may even cause severe safety risks.In this paper,the mechanisms of sulfur poisoning are summarized;the compositions and contents of sulfur species in natural gas,liquefied petroleum gas and liquid hydrocarbon are briefly described;the reported sulfur resistant catalysts for different reforming reactions are reviewed,and the effective and feasible solutions for developing sulfur-tolerant catalysts are summarized.The mechanisms of sulfur poisoning could guide the design of sulfur-resistant reforming catalyst with high performance.Finally,the paper reveals that the improvement of catalytic overall performance,the pretreatment of reforming feedstock and the design of reforming reactor and other comprehensive anti-sulfur strategies are also important research directions.
作者
孙克宁
陈谦
聂明明
侯瑞君
SUN Kening;CHEN Qian;NIE Mingming;HOU Ruijun(Beijing Key Laboratory for Chemical Power Source and Green Catalysis,School of Chemistry and Chemical Engineering,Beijing Institute of Technology,Beijing 100081,China)
出处
《化工学报》
EI
CAS
CSCD
北大核心
2020年第9期4131-4140,共10页
CIESC Journal
基金
装备预研领域基金重点项目(61407210102)。
关键词
氢气
烃类重整
催化剂
硫中毒
SOFC
hydrogen
hydrocarbon reforming
catalysts
sulfur poisoning
SOFC
