State-of-art designs and synthesis of zeolite membranes for CO2 capture

Gao, Xingyuan; Wang, Zhigang; Chen, Tianjia; Hu, Lifen; Yang, Shiting; Kawi, Sibudjing

doi:10.1016/j.ccst.2022.100073

Cited by 15 publications

(4 citation statements)

References 237 publications

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“…During the spinning process, the air gap distance primarily controls the period of growing fibers exposed to the air. A larger air gap will allow nascent fibers to stay in the air for a longer period of time, which may induce the development of a thicker skin layer [220]. A larger air gap may produce defective fibers as a result of gravitational and elongational stresses.…”

Section: Air Gap Distancementioning

confidence: 99%

Current Progress on Dual‐Layer Hollow Fiber Mixed‐Matrix Membrane in CO₂ Capture

Zeeshan,

Yeong,

Chew

2024

ChemBioEng Reviews

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Carbon dioxide (CO2) is a greenhouse gas which is mainly found in natural gas (NG), biogas, and flue gas. Anthropogenic CO2 emissions are the direct result of burning fossil fuels. Meanwhile, pre‐ and postcombustion CO2 separation is a current state of CO2 removal method in an extensive manner. From environmental, economic, and transportation perspectives, removal of CO2 has driven the development of its separation process technology. Among the reported technologies, membrane‐based gas separation technologies have grown substantially, breakthroughs and advances in past decades. This review paper aims to provide an overview on competitive gas separation processes, different types of membranes available, gas transport mechanisms, and fabrication process of hollow fiber membranes, particularly dual‐layer hollow fiber membrane. The performance of the membranes in CO2 separation and effect of spinning parameters on the formation of hollow fiber membranes are highlighted. In addition, approaches to improve the dual‐layer adhesion, strategies to enhance the filler compatibility in the development of dual‐layer hollow fiber mixed‐matrix membranes, and effect of post‐treatments on the gas separation performance of membrane are also discussed. Finally, challenges and future perspectives of dual‐layer hollow fiber mixed‐matrix membranes toward CO2 capture, particularly on CO2/CH4 and CO2/N2 separation, are also included, due to its substantial and direct relevance to the gas separation industry.

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Section: Air Gap Distancementioning

confidence: 99%

Current Progress on Dual‐Layer Hollow Fiber Mixed‐Matrix Membrane in CO₂ Capture

Zeeshan,

Yeong,

Chew

2024

ChemBioEng Reviews

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“…However, the stability of polymer films under high pressure, thermal durability (easy aging and plasticization), and poor selectivity hinder their further development. 173 Porous inorganic film has good stability, the development is relatively rapid, has been studied such as ceramic film, carbon film and zeolite film, MOF film, etc., but the conventional materials have shortcomings. Ceramic materials such as SiO 2 have poor selectivity and can not independently form films; Poor mechanical strength and high production cost hinder the development of carbon film.…”

Section: Feasibility Analysismentioning

confidence: 99%

“…Many polymeric membranes have been commercialized, such as acetate membranes, polyacetylene, polyimide, polysulfone, and alkaline silicon polymers. However, the stability of polymer films under high pressure, thermal durability (easy aging and plasticization), and poor selectivity hinder their further development . Porous inorganic film has good stability, the development is relatively rapid, has been studied such as ceramic film, carbon film and zeolite film, MOF film, etc., but the conventional materials have shortcomings.…”

Section: Membrane Separation Technologymentioning

confidence: 99%

Review on Advances and Prospectives of Direct Air Capture: Thermodynamic Verification, Optimized Material Selection, and Technical Economic Assessment for the Application

Yi,

Guan,

Zhuang

et al. 2024

Ind. Eng. Chem. Res.

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To mitigate the rising threat to global climate aroused by dramatically increasing anthropogenic CO 2 emissions in recent years, the Paris Agreement sets a goal of limiting the rise in average global temperatures to 1.5 to 2 °C over preindustrial times. Traditional negative emissions technologies (NETs) are important approaches to reach that goal, but it is still not enough from a long-term perspective. Therefore, the research on direct air capture (DAC) is imperative now as a new promising approach. This paper first summarizes the different systems DAC can deal with, such as gas/solid, gas/liquid, and gas/polymer systems, and then illustrates the thermodynamic feasibilities of DAC under each condition. From a perspective of industrial practice, the review presents several hopeful chemical technologies from many aspects including capturing material, process flow, and techno-economic analysis, with contents allocated by the maturity of the technology. This review especially analyzes demonstration plants like Climeworks and explores experiences about how to transform early laboratory results based on unit operation into large-scale production. Finally, this review discusses the advantages and disadvantages of the technologies mentioned and provides some suggestions for future research and development.

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“…For instance, petrochemical processes such as hydrocracking and catalytic cracking widely utilize synthetic zeolites with mesoporous structures (e.g., MCM-41) as the catalysts. Zeolite membrane sieves are widely used as an alternative to fractionation for recycled normal paraffins owing to it being more energy efficient and having a selective separation technique [19][20][21][22][23][24]. It is defined as a substance that is used to separate gas or liquid mixture by accelerating the reaction through diminishing the activation energy.…”

Section: Introductionmentioning

confidence: 99%

Utilization of Loaded Cobalt onto MCM-48 Mesoporous Catalyst as a Heterogeneous Reaction in a Fixed Bed Membrane Reactor to Produce Isomerization Product from n-Heptane

Ali

Salih²,

Harharah

et al. 2023

Catalysts

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The use of catalytic membranes as microstructured reactors without a separative function has proved effective. High catalytic activity is possible with minimal mass transport resistances if the reactant mixture is pushed to flow through the pores of a membrane that has been impregnated with catalyst. In this study, n-heptane (C7H16) was hydrocracked and hydro-isomerized within a plug-flow zeolitic catalytic membrane-packed bed reactor. The metallic cobalt (Co) precursor at 3 wt.% was loaded onto support mesoporous materials MCM-48 to synthesize heterogeneous catalysis. The prepared MCM-48 was characterized by utilizing characterization techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray analysis (EDAX), Fourier transform infrared (FTIR), nitrogen adsorption–desorption isotherms, and the Brunauer–Emmett–Teller (BET) surface area. The structural and textural characteristics of MCM-48 after encapsulation with Co were also investigated. The analyses were performed before and after metal loading. According to the results, the 3 wt.% Co/MCM-48 of metallic catalyst in a fixed bed membrane reactor (MR) appears to have an excellent catalytic activity of ~83% during converting C7H16 at 400 °C, whereas a maximum selectivity was approximately ~65% at 325 °C. According to our findings, the synthesized catalyst exhibits an acceptable selectivity to isomers with multiple branches, while making low aromatic components. In addition, a good catalytic stability was noticed for this catalyst over the reaction. Use of 3 wt.% Co/MCM-48 catalyst led to the highest isomerization selectivity as well as n-heptane conversion. Therefore, the heterogeneous catalysis MCM-48 is a promising option/ alternative for traditional hydrocracking and hydro-isomerization processes.

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State-of-art designs and synthesis of zeolite membranes for CO2 capture

Cited by 15 publications

References 237 publications

Current Progress on Dual‐Layer Hollow Fiber Mixed‐Matrix Membrane in CO₂ Capture

Current Progress on Dual‐Layer Hollow Fiber Mixed‐Matrix Membrane in CO₂ Capture

Review on Advances and Prospectives of Direct Air Capture: Thermodynamic Verification, Optimized Material Selection, and Technical Economic Assessment for the Application

Utilization of Loaded Cobalt onto MCM-48 Mesoporous Catalyst as a Heterogeneous Reaction in a Fixed Bed Membrane Reactor to Produce Isomerization Product from n-Heptane

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State-of-art designs and synthesis of zeolite membranes for CO2 capture

Cited by 15 publications

References 237 publications

Current Progress on Dual‐Layer Hollow Fiber Mixed‐Matrix Membrane in CO2 Capture

Current Progress on Dual‐Layer Hollow Fiber Mixed‐Matrix Membrane in CO2 Capture

Review on Advances and Prospectives of Direct Air Capture: Thermodynamic Verification, Optimized Material Selection, and Technical Economic Assessment for the Application

Utilization of Loaded Cobalt onto MCM-48 Mesoporous Catalyst as a Heterogeneous Reaction in a Fixed Bed Membrane Reactor to Produce Isomerization Product from n-Heptane

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Current Progress on Dual‐Layer Hollow Fiber Mixed‐Matrix Membrane in CO₂ Capture

Current Progress on Dual‐Layer Hollow Fiber Mixed‐Matrix Membrane in CO₂ Capture