以TEAOH(四乙基氢氧化铵)为模板剂,采用预涂晶种的二次水热合成法在平均孔径3~5 μm的多孔α-Al2O3管状载体的外表面制备了连续致密的β沸石膜,并且用SEM,XRD和气体渗透对所合成的膜进行了表征,结果表明,所合成的膜连续致密,与载体管结合良好,没有大的缺陷.
参考文献
[1] | Wadlinger R L;Kerr G T;Rosinski E J .Catalytic composition of a crystalline zeolite[P].US 3308069,1967. |
[2] | Treacy M M;Newsam J M .Two new three-dimensional twelve-ring zeolite frameworks of which zeolite beta is a disordered intergrowth[J].Nature,1988,322:249-251. |
[3] | Higgins J B;Lapierre R B;Schlenker J L et al.The framework topology of zeolite beta[J].Zeolites,1988,8:446-452. |
[4] | Kiricsi I;Flego C;Pazzucoui G et al.Progress toward understanding zeolite/3 acidity:an IR and 27Al NMR spectroscopic study[J].Physical Chemistry,1994,98:4627-4634. |
[5] | Corma A;Martinez A;Monteiro J I F et al.Isobutane/2-butene alkylation on zeolite beta:Influence of post-synthesis treatments[J].Applied Catalysis A-general,1996,142:139-146. |
[6] | Zhang X F;Zhu W Q;Liu H O et al.Novel tubular composite carbon-zeolite membranes[J].Materials Letters,2004,58:2223-2227. |
[7] | 李永生,王金渠,鲍钟瑛,郭树才.在载体上引入晶种合成ZSM-5沸石膜[J].石油学报(石油加工),2000(05):31-35. |
[8] | 成岳,王连军,李健生,孙秀云.浸涂晶种法合成ZSM-5分子筛膜及气体渗透性能研究[J].硅酸盐通报,2005(03):102-105. |
[9] | 黄双艳,李永红,张玲,孙莹.基材表面性质对合成支撑β-沸石膜的影响[J].硅酸盐通报,2004(02):21-24. |
[10] | 李云华,黄双艳,李永红,何菲.载体的预处理对β沸石膜形成的影响[J].化学工业与工程,2004(02):79-83. |
[11] | 余少兵,李永红,陈洪钫.支撑β分子筛膜的制备[J].膜科学与技术,2004(05):1-5. |
[12] | Tuan V A;Li S G;John L et al.In situ crystallization of beta zeolite membranes and their permeation and separation properties[J].Chemistry Materials,2002,14:489-492. |
[13] | Xomeritakis G;Gouzinis A;Nair S et al.Growth,microstructure,and permeation properties of supported zeolite (MFI) films and membranes prepared by secondary growth[J].Chemical Engineering Science,1999,54:3521-3531. |
[14] | Nishiyama N;Gora L;Teplyakov V et al.Evaluation of reproducible high flux silicalite-1 membranes:gas permeation and separation characterization[J].Separation and Purification Technology,2001,22-23:295-302. |
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%