摘要
利用化学惰性的甲烷和二氧化碳经重整反应制备合成气是一种十分有前景的策略,能够实现两种温室气体化学转化并制备高附加值化学品,具有重要的科学、环保意义和工业应用价值。然而该反应受限于反应能耗高、催化剂易烧结、积炭失活等问题,因此,开发高催化活性、高稳定性及抗积炭性能强的催化剂是实现该反应工业化应用的关键。从催化剂的基本组成出发,综述了目前国内外甲烷二氧化碳重整催化剂活性中心和载体的设计思路;重点介绍了协同效应在提升催化活性及稳定性等方面所起的关键作用;分析了通过合金化或空间结构化策略来实现协同效应的高效催化过程,并提出未来甲烷二氧化碳重整催化剂的设计和发展方向。
The preparation of syngas from chemically inert methane and carbon dioxide by reforming reactions is a very promising strategy.It can realize the chemical conversion of two greenhouse gases and obtain high value⁃added chemicals,which has important scientific and environmental significance and industrial application value.However,this reaction is lim⁃ited by high energy consumption,easy sintering and carbon deactivation of the catalyst.Therefore,the design of catalysts with high catalytic activity,excellent stability and strong anti⁃coking is the key to realize the industrial application of this re⁃action.Based on the basic composition of catalysts,the design ideas of active centers and carriers for reforming catalysts of methane and carbon dioxide at home and abroad were reviewed,and the key role of synergistic effect in improving catalytic activity and stability was emphatically introduced.The efficient catalytic process of realizing synergistic effect through alloy⁃ing or spatial structure strategy was analyzed,and the design and development direction for reforming catalyst of methane and carbon dioxide in the future was put forward.
作者
胡明亮
周微
李滨
赖晓玲
HU Mingliang;ZHOU Wei;LI Bin;LAI Xiaoling(CenerTech Tianjin Chemical Research and Design Institute Co.Ltd.Tianjin 300131,China)
出处
《无机盐工业》
CAS
CSCD
北大核心
2024年第1期23-32,共10页
Inorganic Chemicals Industry
关键词
甲烷
二氧化碳
重整反应
协同效应
methane
carbon dioxide
reforming reaction
synergistic effect
