全球二氧化碳排放總量與日劇增，是造成全球溫度上昇的主因，探討二氧化碳移除技術越來越受重視，台灣已公告室內空氣品質管理法，規範室內空氣二氧化碳濃度。本研究主要是利用自製之聚偏二氟乙烯(PVDF)中空纖維膜、聚丙烯(PP)中空纖維膜及聚偏二氟乙烯(PVDF)中空纖維管膜，藉由多功能超高解析場發射型掃描式電子顯微鏡(SEM) 探討中空纖維膜結構、孔洞大小、表面孔隙等。使用中空纖維膜組實驗設備填充乙醇胺進行二氧化碳吸收實驗，探討PVDF中空纖維膜、PP中空纖維膜、PVDF中空纖維管膜吸收量，進氣流量對吸收量、操作時間對吸收量之影響。PP中空纖維膜組於氣體流量試驗中，可得知氣體流量操作參數最佳為1 L/min，氣體流量超過9 L/min時，膜組對二氧化碳之吸收能力會大幅調低。
PP中空纖維膜組於氣體流量試驗中，氣體流量最佳操作參數為1 L/min。自行製備之PVDF中空纖維膜，濃度以18 wt%為最佳。 15 wt% PVDF中空纖維管膜經浸泡於20% NMP/H2O溶液15秒後進行熱處理，可有效改善中空纖維管膜易滲漏吸收劑之問題，10 ml乙醇胺吸收劑對二氧化碳吸收量可達0.4215 g/min。 The device performance of the PP and PVDF hollow fiber membrane carbon dioxide absorption system was investigated experimentally in the present study.Porous PVDF hollow fiber membranes will be prepared. Membrane structure, pore size, and surface porosity were characterizing by SEM.
Monoethanolamine(MEA) used for preparing absorbing solution. Hollow fiber membrane contactor was used for carbon dioxide capture experiment system, were conducted various operating conditions including air flux and oeration time.
PP hollow fiber membrane on gas flow tests, optimal operation parameters for gas flow was 1 l/min. itself, Optimal concentration of PVDF hollow-fiber membrane was 18 wt%. 15 wt% PVDF tubla membranes by dipping in 20% NMP solution for 15 seconds and heat treatment, can effectively improve the leakage problems. Carbon dioxide absorbed by ethanolamine up to 0.04215 g/min*ml.
