碳达峰、碳中和目标下抗CO_(2)双相混合导体透氧膜研究进展

Research Progress on Anti-CO_(2) Dual-phase Mixed Conductor Oxygen Transport Membranes for Carbon Peak and Carbon Neutralization

双相混合导体透氧膜在高温条件下是一种兼具氧离子和电子导电性的无机陶瓷材料,可以从含氧气源中高效分离氧气,在富氧燃烧、纯氧制备、固体燃料电池等高温需氧行业备受关注。其中,将双相混合导体透氧膜与富氧燃烧耦合有助于捕捉CO_(2),减少CO_(2)排放,是实现国家“碳达峰、碳中和”目标的有效方式之一。在实际应用环境中,CO_(2)可能导致双相混合导体透氧膜结构破坏和透氧性能下降,所以要求其具备优良的抗CO_(2)性能。介绍了双相混合导体透氧膜工作原理和抗CO_(2)性能的影响因素,以及近年来单相、双相抗CO_(2)混合导体透氧膜材料的研究进展。同时,阐述了双相混合导体透氧膜材料在水分解产氢耦合和甲烷部分氧化等领域的应用进展,证明该材料可以有效提高能源利用效率,并利于CO_(2)减排和再利用。最后,总结并展望了抗CO_(2)双相混合导体透氧膜材料研究现状及发展趋势。

The dual-phase mixed conductor oxygen transport membrane(DMCOTM)is an inorganic ceramic material with both oxygen ionic and electronic conductivity at high temperatures.It can efficiently separate oxygen from oxygen-containing gas,and has attracted much attention in high-temperature oxygen-demanding industries such as oxygen-enriched combustion,pure oxygen preparation,and solid fuel cells.Coupling the DMCOTM with oxygen-enriched combustion helps to capture CO_(2)and reduce CO_(2)emission,which is one of the effective ways to achieve the national goal of"Carbon Peak and Carbon Neutralization".However,CO_(2)may destroy the DMCOTM structure and weaken the oxygen permeability in the practical application environment.So the membranes are required to have excellent anti-CO_(2)performance.This paper introduces the oxygen permeation mechanism of the DMCOTM and the influencing factors of the anti-CO_(2)performance.The research progress of single-phase and dual-phase anti-CO_(2)mixed conductor oxygenpermeable membrane materials in recent years is systematically reviewed.Meanwhile,the application progress of the DMCOTM in many fields is reported,such as coupling membrane reactors with hydrogen production and partial oxidation of methane.It is proved that the DMCOTM can effectively improve the energy utilization efficiency as well as the capture and reuse of CO_(2).Finally,the status and development of DMCOTM are summarized and prospected.