Study the Effect of Seeding Suspension Concentration of DD3R Particles on the Modified Surface of Α-Alumina Support for Preparing DD3R Zeolite Membrane with High Quality
Abstract
In this study, seeding of DD3R particles as an important step in the synthesis of DD3R membrane with secondary growth method was investigated. Dip-coating method is used for seeding of DD3R particles on the modified surface of α-alumina supports. 0.1, 0.2 and 0.3 wt% aqueous suspensions of the DD3R seeds were prepared and each support was coated three times with dipping time of 240 s. Scanning electron microscopy (SEM) analysis was used for the investigation of the quality of seed layer formed on the support. It is shown that the uniform layer of seeds was formed with 0.2 wt% seed suspension concentration. DD3R zeolite membrane was synthesized via hydrothermal method on the support seeded with 0.2 wt% seed suspension concentration. The X-ray diffraction and SEM analysis confirmed the synthesis of uniform DD3R zeolite membrane layer on the support which can be due to the uniform distribution of the DD3R seeds. Single gas permeation tests of N2, CO2 and CH4 were carried out, so that good perm-selectivity for gas mixtures was observed.
Keywords
References
Wu, Ting, Merritt C. Diaz, Yihong Zheng, Rongfei Zhou, Hans H. Funke, John L. Falconer, and Richard D. Noble. “Influence of Propane on CO2/CH4 and N2/CH4 Separations in CHA Zeolite Membranes.” Journal of Membrane Science 473 (January 2015): 201–209. doi:10.1016/j.memsci.2014.09.021.
Den Exter, M.J., J.C. Jansen, and H. van Bekkum. “Separation of Permanent Gases on the All-Silica 8-Ring Clathrasil DD3R.” Zeolites and Related Microporous Materials: State of the Art 1994 - Proceedings of the 10th International Zeolite Conference, Garmisch-Partenkirchen, Germany, 17-22 July 1994 (1994): 1159–1166. doi:10.1016/s0167-2991(08)63653-8.
Van den Bergh, J., W. Zhu, J. Gascon, J.A. Moulijn, and F. Kapteijn. “Separation and Permeation Characteristics of a DD3R Zeolite Membrane.” Journal of Membrane Science 316, no. 1–2 (May 2008): 35–45. doi:10.1016/j.memsci.2007.12.051.
Den Exter, M.J., J.C. Jansen, H. van Bekkum, and A. Zikánova. “Synthesis and Characterization of the All-Silica 8-Ring Clathrasil DD3R Comparison of Adsorption Properties with the Hydrophilic Zeolite A.” Zeolites 19, no. 5–6 (November 1997): 353–358. doi:10.1016/s0144-2449(97)00115-2.
Yang, S., Cao, Z., Arvanitis, A., Sun, X., Xu, Z., Dong, J. (2016). DDR-type zeolite membrane synthesis, modification and gas permeation studies. Journal of Membrane Science, vol. 505, p. 194-204.
Mubashir, Muhammad, Yin Fong Yeong, and Kok Keong Lau. “Ultrasonic-Assisted Secondary Growth of Deca-Dodecasil 3 Rhombohedral (DD3R) Membrane and Its Process Optimization Studies in CO2/CH4 Separation Using Response Surface Methodology.” Journal of Natural Gas Science and Engineering 30 (March 2016): 50–63. doi:10.1016/j.jngse.2016.01.015.
Xiao, Wei, Zhan Chen, Liang Zhou, Jianhua Yang, Jinming Lu, and Jinqu Wang. “A Simple Seeding Method for MFI Zeolite Membrane Synthesis on Macroporous Support by Microwave Heating.” Microporous and Mesoporous Materials 142, no. 1 (June 2011): 154–160. doi:10.1016/j.micromeso.2010.11.029.
Liu, Yanmei, Zhanzhao Yang, Congli Yu, Xuehong Gu, and Nanping Xu. “Effect of Seeding Methods on Growth of NaA Zeolite Membranes.” Microporous and Mesoporous Materials 143, no. 2–3 (September 2011): 348–356. doi:10.1016/j.micromeso.2011.03.016.
Tomita, Toshihiro, Kunio Nakayama, and Hitoshi Sakai. “Gas Separation Characteristics of DDR Type Zeolite Membrane.” Microporous and Mesoporous Materials 68, no. 1–3 (March 2004): 71–75. doi:10.1016/j.micromeso.2003.11.016.
Himeno, Shuji, Toshihiro Tomita, Kenji Suzuki, Kunio Nakayama, Kenji Yajima, and Shuichi Yoshida. “Synthesis and Permeation Properties of a DDR-Type Zeolite Membrane for Separation of CO2/CH4Gaseous Mixtures.” Industrial & Engineering Chemistry Research 46, no. 21 (October 2007): 6989–6997. doi:10.1021/ie061682n.
Yajima, K., Nakayama, K. (2009). Process for producing DDR type zeolite membrane. Patent No. : US 2009/0011926 A1.
DOI: 10.28991/esj-2018-01127
Refbacks
- There are currently no refbacks.
Copyright (c) 2018 Aynaz Meshkat, Mohammad Javad Vaezi, Ali Akbar Babaluo
