以煤为原料,与粘结剂混合后经挤压成型、炭化制备煤基管状炭膜.通过选用不同的煤种及加入模板剂对煤基炭膜的孔结构进行调控,并将其用于C/C复合气体分离膜支撑体及处理钛白废水、含油废水.结果表明:以煤基管状炭膜为支撑体,分别以聚醚砜酮(PPESK)和聚糠醇(PFA)为前体,采用浸渍涂膜法制备的气体分离用C/C复合膜,在25℃时H2/N2,O2/N2,CO2/N2的分离系数分别为104.3,13.7,21.8及347.0,12.5,31.4.经煤基炭膜处理后,钛白废水渗透液中TiO2的浓度为0.04 mg/L,TiO2的截留率为99.99%;含油废水的除油率可达到97%以上,渗透液中含油量小于10 mg/L.
参考文献
| [1] | A. F. Ismail;L. I. B. David .A review on the latest development of carbon membranes for gas separation[J].Journal of Membrane Science,2001(1):1-18. |
| [2] | Saufi S M;Ismail A F .Fabrication of carbon membranes for gas separation-a review[J].CARBON,2004,42:241-259. |
| [3] | 张兵,王同华,呼立红,曹义鸣,邱介山.聚酰亚胺基气体分离炭膜的进展[J].膜科学与技术,2007(05):97-101. |
| [4] | 王同华,魏微,刘淑琴,尤隆渤,蔡天锡.管状多孔炭膜的研究[J].新型炭材料,2000(01):6-11. |
| [5] | 王同华,六淑琴,尤隆渤,蔡天锡.原料粒度对煤基炭膜孔结构的影响[J].高校化学工程学报,2000(05):493-496. |
| [6] | Venkataraman K;Chute W T;Torte E R et al.Characterlzation studies of ceramic membranes:a novel technique using a coulter porometer[J].Journal of Membrane Science,1988,39:259-265. |
| [7] | 郭树才.煤化工工艺学[M].北京:化学工业出版社,1992:27-30. |
| [8] | Song Chengwen;Wang Tonghua;Wang Xiuyue et al.Preparation and gas separation properties of Poly(furfuryl alcohol)-based C/CMS composite membrane[J].Separation and Purification Technology,2008,58:412-418. |
| [9] | Rajagopalan R;Merritt A;Tseytlin A;Foley HC .Modification of macroporous stainless steel supports with silica nanoparticles for size selective carbon membranes with improved flux[J].Carbon: An International Journal Sponsored by the American Carbon Society,2006(10):2051-2058. |
| [10] | Chengwen Song;Tonghua Wang;Yanqiu Pan .Preparation of coal-based microfiltration carbon membrane and application in oily wastewater treatment[J].Separation and Purification Technology,2006(1):80-84. |
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