Preparation of Faujasite membranes and their permeation properties

作者: Hidetoshi Kita , Kazunobu Fuchida , Tatsuya Horita , Hidetoshi Asamura , Kenichi Okamoto

DOI: 10.1016/S1383-5866(01)00110-1

关键词:

摘要: NaX and NaY zeolite membranes were grown hydrothermally on the surface of a porous cylindrical support. The molar compositions starting gel SiO 2 /Al O 3 =3.6-5.3 (X), 25 (Y), Na O/SiO =1.2-1.4 0.88 H O/Na O=30-50. X-ray diffraction (XRD) patterns consist peaks corresponding to support or zeolite. Si/Al ratio these zeolites determined by atomic absorption spectrophotometry was 1.3 2.1, respectively. outer-surface completely covered with randomly oriented, intergrown crystals thickness membrane about 20-30 μm, judging from scanning electron microscopy (SEM) observation. Pervaporation vapor permeation organic mixtures through investigated. showed high alcohol selectivity for several feed methanol ethanol. Furthermore, benzene observed benzene/cyclohexane benzene/n-hexane separation. High permselectivity can be attributed selective sorption into membrane.

参考文章(9)
Donald W Breck, Zeolite molecular sieves Krieger. ,(1984)
R. Y. M. Huang, Pervaporation membrane separation processes Elsevier , Distributors for the U.S. and Canada, Elsevier Science Pub. Co.. ,(1991)
J.P. Garcia Villaluenga, A. Tabe-Mohammadi, A review on the separation of benzene/cyclohexane mixtures by pervaporation processes Journal of Membrane Science. ,vol. 169, pp. 159- 174 ,(2000) , 10.1016/S0376-7388(99)00337-3
Thomas Bein, Synthesis and Applications of Molecular Sieve Layers and Membranes Chemistry of Materials. ,vol. 8, pp. 1636- 1653 ,(1996) , 10.1021/CM960148A
Masakazu Kondo, Mitsuru Komori, Hidetoshi Kita, Ken-ichi Okamoto, Tubular-type pervaporation module with zeolite NaA membrane☆ Journal of Membrane Science. ,vol. 133, pp. 133- 141 ,(1997) , 10.1016/S0376-7388(97)00087-2
Hidetoshi Kita, Kohji Horii, Yasuharu Ohtoshi, Kazuhiro Tanaka, Ken-Ichi Okamoto, Synthesis of a zeolite NaA membrane for pervaporation of water/organic liquid mixtures Journal of Materials Science Letters. ,vol. 14, pp. 206- 208 ,(1995) , 10.1007/BF00318258
Hidetoshi Kita, Tsutomu Inoue, Hidetoshi Asamura, Kazuhiro Tanaka, Kenichi Okamoto, NaY zeolite membrane for the pervaporation separation of methanol–methyl tert-butyl ether mixtures Chemical Communications. pp. 45- 46 ,(1997) , 10.1039/A605708J
Hidetoshi Kita, Hidetoshi Asamura, Kazuhiro Tanaka, Kenichi Okamoto, Preparation and Pervaporation Properties of X- and Y-Type Zeolite Membranes American Chemical Society. pp. 330- 341 ,(1999) , 10.1021/BK-2000-0744.CH022
Ursula Fleming, John and Pain Eckhart Review. ,vol. 1, pp. 46- 54 ,(1992) , 10.1179/ECK_1992_1_1_006