膜科学与技术

Position：Home >> Abstract

Preparation of NaAzeolite membranes on macroporoussupports by varying-temperature spraying seeding method

Authors： XUJing,LI Huazheng, YANG Jian-hua*,WANG Jinqu*,MENG Xiangdi, XU bo, YIN Dehong, LU Jinming, ZHANG Yan

Units： Institute of Adsorption and Inorganic Membrane, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024 , China

KeyWords： spraying seeding method；zeoliteNaA membrane；macroporous support；pervaporation； dehydration of organic

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2013,33(6):20-24

Abstract：

Spraying seeding technology was developed to prepare zeolite NaA membranes on the low-cost macroporous α-Al2O3 support. The supports were firstlydepositedby spraying the large (2 μm)NaA crystals at 448 K, and then the small (0.4 μm)NaAseeds were sprayed on the pre-treated supports toobtain a thin and continuous seeds layer. At last, the NaA zeolite membrane was fabricated by the seeded secondary growth at 353 K. The as-synthesized NaA zeolite membrane was characterized by SEM, XRD and pervaporation measurement. The results show that wellinter-grown zeolite NaA membranes were formed. The total flux of the zeolite NaAmembraneswas2.71 kg•m-2•h-1, and the separation factor was more than 2000 in dehydrating the 90wt.%ethanol/10 wt.%water solution at 348 K.

Funds：

自然科学基金(No.21076029)；新世纪优秀人才(NCET-10-0286)

AuthorIntro：

许静(1986-)，女，山东聊城人，硕士研究生，从事无机膜的制备及有机物脱水研究.*通讯联系人，E-mail：yjianhua@dlut.edu.cn (杨建华)；wjinqu@dlut.edu.cn (王金渠)

Reference：

[1]徐如人，庞文琴，于吉红．分子筛与多孔材料化学［M］．北京: 科学出版社，2004: 245-246．
[2]Morigami Y, Kondo M,Abe J, et al.The ?rst large-scale pervaporation plant using tubular-type module with zeolite NaA membrane [J]. Sep. Purif. Technol. 2001, 25: 251–260.
[3]Wang Z B, Ge Q Q, Gao J S, et al. High-performance zeolite membranes on inexpensive large-pore supports: highly reproducible synthesis using a seed paste [J].ChemSusChem, 2011, 4: 1570-1573.
[4]Caro J, M. Noack; P. KÖlsch. Zeolite Membranes: From the Laboratory Scale to Technical Applications [J]. Adsorption, 2005, 11: 215-227.
[5]Tsapatsis M.Toward High-Throughput Zeolite Membranes [J]. Science, 2011, 334: 767-768.
[6]Liu YM, Yang ZZ, Yu CL,et al.Effect of seeding methods on growth of NaA zeolite membranes [J]. Micropor. Mesopor. Mater. 2011,143: 348-356.
[7]Li XM, Peng Y, Wang ZB, et al. Synthesis of highly b-oriented zeolite MFI films by suppressing twin crystal growth during the secondary growth [J].CrystEngComm., 2011, 13: 3657-3660.
[8]Zhang FZ, Fuji M, Takahashi M. In situ growth of continuous b-oriented MFI zeolite membranes on porous α-alumina substrates pre-coated with a mesoporous silica sublayer [J]. Chem. Mater., 2005, 17: 1167-1173.
[9]Yoo WC, Stoeger JA, Lee PS, et al. High-performance randomly oriented zeolite membranes using brittle seeds and rapid thermal processing [J].Angew. Chem. Int. Ed., 2010,49: 8699-8703.
[10]Boudreau LC, Tsapatsis M.A highly oriented thin film of zeolite A [J]. Chem. Mater., 1997, 9: 1705 –1709.
[11]Bernal M P, Xomeritakis G, Tsapatsis M. Tubular MFI zeolite membranes made by secondary (seeded) growth [J]. Catalysis Today, 2001,67(1-3):101-107.
[12]Lai R, GaverlasG R. Surface Seeding in ZSM-5 Membrane Preparation [J]. Industrial & Engineering Chemistry Research, 1998,37(11):4275-4283.
[13]Huang AS, Lin YS, Yang WS.Synthesis and Properties of A-Type Zeolite Membranes by Secondary Growth Method with Vacuum Seeding [J]. J.Membr. Sci., 2004, 245 (1-2): 41-51
[14]Mohammadi T，Pak A．Making Zeolite A Membrane from Kaolin by Electrophoresis [J]. Micropor. Mesopor. Mater., 2002, 56(1):81-88.
[15]盛春光，杨建华，殷德宏，等. 采用两步晶种法在大孔α-Al2O3载体上合成NaA沸石膜. 石油化工. 2011,40(8):820-824.
[16]任秀秀，杨建华，陈赞，等. 含氟体系下高性能丝光沸石分子筛膜的制备及其性能.催化学报.2012,33(9):1558-1564
[17]Xiao W, Chen Z, Zhou L, et al. A simple seeding method for MFI zeolite membrane synthesis on macroporous support by microwave heating [J].Micropor. Mesopor. Mater.,2011, 142: 154-160.
[18]Chen XX, Wang JQ, Yin DH, et al.High-performance zeolite T membrane for dehydration of organics by a new varying temperature hot-dip coating method [J].AlChE, 2013, 59 (3): 936-947.

Service：

【Download】【Collect】

《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone：010-80492417/010-80485372; Fax：010-80485372 ; Email：mkxyjs@163.com