通道数量对管状微滤炭膜油水分离性能的影响  

Effect of Channel Numbers on the Oil-Water Separation Performance of Tubular Microfiltration Carbon Membranes

作　　者：彭瑶 洪学谦 吴永红[1] 赵文凯[1] 张兵[1] PENG Yao;HONG Xueqian;WU Yonghong;ZHAO Wenkai;ZHANG Bing(School of Petrochemical Engineering,Shenyang University of Technology,Liaoyang 111003,China)

机构地区：[1]沈阳工业大学石油化工学院,辽宁辽阳111003

出　　处：《水处理技术》2025年第3期87-90,95,共5页Technology of Water Treatment

基　　金：辽宁省自然科学基金(2021-MS-238);辽宁省教育厅科研项目(LJGD2020002)。

摘　　要：以酚醛树脂为原料,聚丙烯腈纤维为掺杂剂,经共混、成型、热解等过程制备了管状炭膜。采用热重分析、红外光谱、X射线衍射、扫描电镜和泡压法等技术对膜的热稳定性、官能团、微晶结构、微观形貌和孔隙结构等进行了表征。主要研究了通道数量对炭膜油水分离性能的影响。研究发现,纯膜通道数量的增加会导致渗透通量与截油率降低,但不会降低炭膜的孔隙率;杂化炭膜通道数量的增加使得渗透通量与截油率呈现先上升后降低的趋势,且在通道数为3时大幅度提高了孔隙率,此时水通量最高,达718 kg/(m^(2)·h)。Tubular carbon membranes were prepared using phenolic resin as raw material and polyacrylonitrile fibers as dopants through the processes of blending,molding and pyrolysis.The thermal stability,functional groups,microstructure,micromorphology and pore structure of the carbon membrane were characterized by thermogravimetric analysis,infrared spectroscopy,X-ray diffraction,scanning electron microscope and bubble pressure method.The effects of the number of channels on the oil-water separation performance of carbon membranes were mainly investigated.The research shows that it would lead to a reduction in permeation flux and oil rejection,without lossing the porosity when the number of pure membrane channels is increased.For hybrid carbon membrane,the increase in the number of channels results in a trend of first increasing and then decreasing the permeation flux and oil rejection.In comparison,for cabron membranes with 3 channels,the porosity is significantly increased with the highest water flux of 718 kg/(m^(2)·h).

关 键 词：聚丙烯腈 酚醛树脂 管状炭膜 孔隙率 

分 类 号：TQ028.8[化学工程]