2024-01-012024-05-13https://scholars.lib.ntu.edu.tw/handle/123456789/654154薄膜氣體分離技術為低能耗、低碳足跡之新興分離程序，在未來的清淨能源開發純化與減碳程序中將扮演重要角色。根據2016年一篇刊登於的Nature的文章指出，以薄膜分離程序取代繼有的氣體分離程序(如：吸附、吸收、低溫蒸餾)，最多有機會省下百分之七十的能源消耗。以現有的薄膜氣體分離技術來說，可細分為針對不同氣體對(gas pair)進行分離的薄膜材料與程序：包含跟產氫相關的薄膜氣體分離技術為H2/CO2的分離、跟工業尾氣碳捕捉相關的CO2/N2分離、以及跟天然氣相關的CO2/CH4分離。金屬有機骨架(metal-organic framework, MOF)為新興的為孔洞材料，有機會突破傳統高分子氣體分離膜的效能限制。基於MOF薄膜發展的現況，本計畫欲利用開發讓MOF氣體分離膜薄膜能加速走向產業化之三項技術。其一為研究造成氣體在MOF孔道中輸送時，由於MOF自身結構彈性所造成的形變情形。其二為開發兩種新穎手法來抑制MOF由結構彈性造成的形變，包含混合配體法與高分子嵌入法。其三為開發管狀連續式操作的MOF薄膜模組，並探討MOF薄膜分離效能與模組氣體傳化效能的關連性，並建立可放大的pilot MOF薄膜模組。 Membrane gas separation is an emerging separation technology with low energy cost and carbon footprint. It will play an essential role in the future development of clean energy and negative carbon techniques. According to an article published in Nature in 2016, the replacement of existing gas separation techniques (adsorption, absorption, and cryogenic distillation) with the membrane-based approach will save up to 70% of the energy cost. The existing membrane gas separation techniques involve the separation of H2/CO2 for hydrogen production, CO2/N2 for flue gas carbon capture, and CO2/CH4 for natural gas production. Metal-organic frameworks (MOFs) are emerging microporous materials that could overcome the separation performance limitation of conventional polymeric membranes. Based on the current technical limit of MOF membranes, this proposal will develop key techniques to facilitate the commercialization of MOF membranes. First, we will study the structural deformation of MOFs during gas permeation. Second, we will create two new approaches to inhibit the deformation of MOF membranes: the mixed linker approach and the insertion of polymers. Third, we will develop the gas separation module of tubular MOF membranes and study the relationship between the MOF property and membrane property. Combining those techniques, we will propose scalable MOF membrane modules for gas separation.金屬有機骨架; 薄膜氣體分離; 輸送現象; 碳捕捉;metal-organic framework; membrane gas separation; transport phenomena; carbon capture