کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
632800 1456001 2016 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Multilayer polymer/zeolite Y composite membrane structure for CO2 capture from flue gas
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Multilayer polymer/zeolite Y composite membrane structure for CO2 capture from flue gas
چکیده انگلیسی
A novel concept of multilayer polymer/zeolite Y composite membrane structure was developed and investigated for CO2 capture from flue gas. Zeolite Y nanoparticles with an average particle size of 40 nm were successfully deposited onto flexible polymer supports with uniform coverage by the vacuum-assisted dip deposition approach. The zeolite Y dispersion concentration was varied for different commercial polymer supports to obtain a crack-free zeolite Y layer. Scanning electron microscopy (SEM) analysis indicated that a uniform zeolite Y layer could be formed either on Biomax polyethersulfone (PES) membrane or on TM10 polyvinylidene fluoride (PVDF) membrane with appropriate vacuum-assisted dip deposition conditions. Atomic force microscopy (AFM) analysis showed that the zeolite Y/Biomax PES substrate was smoother than the zeolite Y/TM10 PVDF substrate. The Pebax®/PEG-200 membrane prepared on the zeolite Y/Biomax PES substrate exhibited higher CO2 permeance than that prepared on the bare Biomax PES support since the penetration of the polymer membrane was minimized by the smaller interparticle pore size on the zeolite Y layer. The membrane of the multilayer composite structure showed a CO2 permeance of 745 GPU and a CO2/N2 selectivity of 25.4 under flue gas operating conditions at 57 °C and ~1 atm. This concept has provided the basis for high performance membranes with the selective polymer cover layer containing amino groups and for grown zeolite Y membranes with continuous polycrystalline structure supported by the flexible polymer substrate.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 498, 15 January 2016, Pages 1-13
نویسندگان
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