Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6664035 | Journal of Environmental Chemical Engineering | 2018 | 30 Pages |
Abstract
Surface voids and filler agglomeration affect the membrane's structure and gas separation which limits the use of mixed matrix membranes (MMM) for carbon dioxide (CO2) separation in industry. Therefore, synthesis of MMM with ionic liquid and modified inorganic fillers had improved performance and morphologies. In this regards the filler surface (SAPO-34) was modified by introducing organic amino cation, namely ethylenediamine (EDA) and hexylamine (HA). Four (04) mixed matrix membranes were synthesized by the incorporation of un-modified and modified filler along with ionic liquid (IL) in polyethersulfone (PES) matrix. The effects of IL addition and filler functionalization on morphology, thermal and mechanical stability were investigated; while pure gas permeation test using carbon dioxide (CO2) and methane (CH4) was carried out at 4â¯bar pressure to analyze the membrane gas transport properties. Characterization showed that surface voids and hard agglomerations disappeared by the addition of modified SAPO-34 and ionic liquid [emim][Tf2N]. Moreover, membranes were thermally and mechanically stable after the addition of IL and modified SAPO-34. Synergetic effect of IL and modified filler exhibited excellent CO2/CH4 selectivity (37.23) for PESâ¯+â¯ILâ¯+â¯modified SAPO-34â¯+â¯HA MMM.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Rizwan Nasir, Nor Naimah Rosyadah Ahmad, Hilmi Mukhtar, Dzeti Farhah Mohshim,