以BPDA-ODA型聚酰亚胺为前躯体,沸石为掺杂剂,通过成膜和炭化等过程制备了杂化炭膜.分别采用热失重、X射线衍射、扫描电子显微镜及渗透技术研究了前躯体热稳定性,炭膜微观结构、形貌及气体分离性能.考察了ZSM-5与5A两种沸石含量、炭化温度、渗透温度及渗透压力等因素对炭膜气体分离性能的影响.结果表明:H2、CO2、O2和N24种气体主要以分子筛分机理渗透通过炭膜,实现选择性分离.在650℃炭化温度下得到杂化炭膜随沸石含量提高,气体渗透性与选择性均略降低；5A杂化炭膜的渗透性与选择性都显著高于ZSM-5杂化炭膜；随渗透压力提高,杂化炭膜的气体渗透性与选择性升高.当炭化温度从650℃升高到750℃时,杂化炭膜的渗透性降低.
参考文献
| [1] | Ismail A F;Rana D;Matsuura T.Carbon-based membranes for separation processes[M].Springer New York Dordrecht Heidelberg London,2011 |
| [2] | Paul D R .Creating new types of carbon-based mernbranes[J].Science,2012,335:413-414. |
| [3] | Pei Shi Tin;Youchang Xiao;Tai-Shung Chung .Polyimide-Carbonized Membranes for Gas Separation:Structural,Composition,and Morphological Control of Precursors[J].Separation and Purification Reviews,2006(3/4):285-318. |
| [4] | W. N. W. SALLEH;A. F. ISMAIL;T. MATSUURA .Precursor Selection and Process Conditions in the Preparation of Carbon Membrane for Gas Separation: A Review[J].Separation and Purification Reviews,2011(1/4):261-311. |
| [5] | 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. |
| [6] | Sá S;Silva H;José M et al.Hydrogen production by methanol steam reforming in a membrane reactor:Palladium vs carbon molecular sieve membranes[J].Journal of Membrane Science,2009,339:160-170. |
| [7] | Youchang Xiao;Mei Lin Chng;Tai-Shung Chung .Asymmetric structure and enhanced gas separation performance induced by in situ growth of silver nanoparticles in carbon membranes[J].Carbon: An International Journal Sponsored by the American Carbon Society,2010(2):408-416. |
| [8] | Hui-Hsin Tseng;Pei-Ting Shiu;Yi-Shan Lin .Effect of mesoporous silica modification on the structure of hybrid carbon membrane for hydrogen separation[J].International journal of hydrogen energy,2011(23):15352-15363. |
| [9] | P. S. Tin;T. -S. Chung;L. Jiang .Carbon-zeolite composite membranes for gas separation[J].Carbon: An International Journal Sponsored by the American Carbon Society,2005(9):2025-2027. |
| [10] | Liu QL;Wang TH;Liang CH;Zhang B;Liu SL;Cao YM;Qiu JS .Zeolite married to carbon: A new family of membrane materials with excellent gas separation performance[J].Chemistry of Materials: A Publication of the American Chemistry Society,2006(26):6283-6288. |
| [11] | Liu Q;Wang T;Guo H et al.Controlled synthesis of high performance carbon/zeolite T composite membrane materials for gas separation[J].Micropor and Mesopor Mater,2009,120:460466. |
| [12] | Li G;Yang J;Wang J et al.Thin carbon/SAPO-34 microporous composite membranes for gas separation[J].Journal of Membrane Science,2011,374:83-92. |
| [13] | Kong C;Wang J;Yang J et al.Thin carbon-zeolite composite membrane prepared on ceramic tube ? lter by vacuum slip casting for oxygen/nitrogen separation[J].Carbon,2007,45:2848-2850. |
| [14] | Varela-Gandía F J;Berenguer-Murcia (A);LozanoCastelló D et al.Zeolite A/carbon membranes for H2 purification from a simulated gas reformer mixture[J].Journal of Membrane Science,2011,378:407-414. |
| [15] | Yin X;Wang J;Chu N et al.Zeolite L/carbon nanocomposite membranes on the porous alumina tubes and their gas separation properties[J].Journal of Membrane Science,2010,348:181-189. |
| [16] | Bing Zhang;Tonghua Wang;Yonghong Wu .Preparation and gas permeation of composite carbon membranes from poly(phthalazinone ether sulfone ketone)[J].Separation and Purification Technology,2008(3):259-263. |
| [17] | B. Zhang;T. Wang;S. Zhang .Preparation and characterization of carbon membranes made from poly(phthalazinone ether sulfone ketone)[J].Carbon: An International Journal Sponsored by the American Carbon Society,2006(13):2764-2769. |
| [18] | Isoda S;Shimada H;Kochi M et al.Molecular aggregation of solid aromatic polymers.I.Small-angle X-ray scattering from aromatic polyimide film[J].Journal of Polymer Science Part B:Polymer Physics,1981,19:1293-1312. |
| [19] | Hatori H.;Shiraishi M.;Yoshihara M.;Kimura T.;Yamada Y. .THE MECHANISM OF POLYIMIDE PYROLYSIS IN THE EARLY STAGE[J].Carbon: An International Journal Sponsored by the American Carbon Society,1996(2):201-208. |
| [20] | Wu E L;Lawton S L;Olson D H et al.ZSM-5-type materials.Factors affecting crystal symmetry[J].Journal of Physical Chemistry,1979,83:2777-2781. |
| [21] | Strano M S;Foley H C .Temperature-and pressuredependent transient analysis of single component permotion through nanoporous carbon membranes[J].Carbon,2002,40:10291041. |
| [22] | Hayashi J.;Yamamoto M.;Kusakabe K.;Morooka S.;Mizuta H. .PORE SIZE CONTROL OF CARBONIZED BPDA-PP'ODA POLYIMIDE MEMBRANE BY CHEMICAL VAPOR DEPOSITION OF CARBON[J].Journal of Membrane Science,1997(2):243-251. |
| [23] | 张兵,王同华,丁孟贤,刘庆岭,邱介山.聚酰亚胺基炭分子筛膜的制备及表征[C].第二届中国膜科学与技术报告会论文集,2005:34-37,42. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%