ZIF-8-based dual layer hollow fiber mixed matrix membrane for natural gas purification

被引:9
|
作者
Kamaludin, Roziana [1 ]
Ma, Xuefeng [1 ]
Othman, Mohd Hafiz Dzarfan [1 ]
Imtiaz, Aniqa [1 ]
Puteh, Mohd Hafiz [2 ]
Kadir, Siti Hamimah Sheikh Abdul [3 ,4 ]
机构
[1] Univ Teknol Malaysia, Adv Membrane Technol Res Ctr AMTEC, Skudai 81310, Johor, Malaysia
[2] Univ Teknol Malaysia, Fac Engn, Sch Civil Engn, Dept Environm Engn, Skudai 81310, Johor, Malaysia
[3] Univ Teknol MARA UiTM, Fac Med, Dept Biochem & Mol Med, Sungai Buloh Campus,Jalan Hosp, Sungai Buloh 47000, Selangor, Malaysia
[4] Univ Teknol MARA, Inst Pathol Lab & Forens Med I PPerforM, Sungai Buloh 47000, Selangor, Malaysia
关键词
ZIF-8; Mixed matrix membrane; Dual-layer hollow fibre; Natural gas; Gas separation; ZEOLITIC IMIDAZOLATE FRAMEWORK-8; CO2/CH4; SEPARATION; THERMAL-STABILITY; ZIF-8; MEMBRANES; PARTICLE-SIZE; PERMEATION; OPPORTUNITIES; POLYSULFONE; ADSORPTION;
D O I
10.1016/j.fuel.2023.129377
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
To prevent pipe damage and lower operating costs, natural gas must be cleaned of pollutants like carbon dioxide (CO2) and hydrogen sulphide (H2S). High selectivity of the functional material in the mixed matrix membranes (MMMs) allows for a more efficient gas separation compared to traditional polymeric membranes. However, poor dispersion and compatibility between the functional material and the polymer matrix become one of the major problems of MMMs. The use of zeolite imidazole (ZIF-8) in MMMs has been explored for its ability to separate CO2/CH4 due to its versatile gas molecule diameter range and effective CO2 adsorption. In this study, the effects of ZIF-8 at various loadings were examined on the physical and chemical properties of dual layer hollow fiber MMMs and gas separation efficiency. Following the successful production of 86.25 nm ZIF-8 nanoparticles, ZIF-8-based DLHF MMMs were created. The results showed that 0.5 wt% ZIF-8 loading provided the best results, with excellent interaction between the polymer PSf and the inorganic filler ZIF-8, strong heat resistance, and chemical stability. Increased CO2 permeability and CO2/CH4 ideal selectivity by 72.5 % and 1196.2 % respectively, compared to the unmodified membrane. It was inferred through this study that minimal loading of 0.5 wt% ZIF-8 in the DLHF MMMs improved their ability to separate gases, making them a good option for capturing CO2.
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页数:12
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