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Review of Hollow Fiber Membranes for Gas Separation: Exploring Fundamentals and Recent Advancements
Valentina Grosso1, Carmen Rizzuto1, Elena Tocci1
1Institute on Membrane Technology, CNR-ITM, Via P. Bucci 17/C, 87036 Rende, CS, Italy.
Abstract:
Hollow fiber membranes have revolutionized various gas separation processes due to their unique characteristics such as high surface area, small system footprint, and high energy efficiency compared to flat sheet or spiral wound membranes. This review analyzes the current state of the art of hollow fiber technology, exploring its diverse applications across various fields. Over the past ten years, research has primarily focused on improving hollow fiber fabrication techniques, including phase inversion, electrospinning, and 3D printing, highlighting their impact on membrane performance and selectivity. Furthermore, we discuss the challenges and future perspectives of hollow fiber technology, focusing on the development of novel materials and surface modifications to enhance membrane durability and efficiency. Finally, this review provides an overview of current gas separation techniques, spanning both conventional and next-generation methods, based on the foreseen field of exploitation of hollow fiber membranes.
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