کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
635041 1456084 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermally rearranged (TR) polybenzoxazole hollow fiber membranes for CO2 capture
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
Thermally rearranged (TR) polybenzoxazole hollow fiber membranes for CO2 capture
چکیده انگلیسی

Thermally rearranged polybenzoxazole (TR-PBO) hollow fiber membranes were prepared using a non-solvent induced phase separation method intended to apply for CO2 separation from post-combustion flue gas. Asymmetric hollow fiber membranes were spun from a hydroxyl poly(amic acid) (HPAAc) precursor and subsequently converted to TR-PBO hollow fiber membranes after thermal treatment above 400 °C. The skin structure and porous substructure in TR-PBO hollow fiber membranes were maintained even after thermal treatment at above glass transition temperature (Tg) of precursor polymers. To fabricate defect-free hollow fiber membranes, the effects of dope composition and thermal rearrangement conditions were investigated. Gas permeation properties of TR-PBO hollow fiber membranes measured by constant pressure method with small laboratory scale test module revealed a high CO2 permeance (1940 GPU) with a CO2/N2 selectivity of 13.


► Thermally rearranged (TR) polymer membranes have been prepared from precursor polymer by simple thermal treatment process.
► TR-PBO hollow fiber membranes have been prepared by non-solvent induced phase separation process (NIPS).
► TR-PBO hollow fiber membranes for CO2 separation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volumes 403–404, 1 June 2012, Pages 169–178
نویسندگان
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