MFI형 제올라이트 분리막을 이용한 에틸벤젠/파라자일렌 분리에 대한 연구 = Ethylbenzene Separation from Ethylbenzene/p-xylene Mixture with MFI-type Zeolite Membranes

다국어 초록 (Multilingual Abstract)

Ethylbenzene (EB) which has a similar physical properties with p-xylene (pX) was separated from EB/pX mixture by using MFI-type zeolite (TS-1, ZSM-5, and Silicalite-1) coated membranes. The zeolites were synthesized by microwave method to reduce the synthesis time and uniformly formed zeolite particles were coated on the α-almina tubular support with a thickness of 3-4 μm. Separation factor and permeation flux of the synthesized zeolite coated membranes were measured to survey the best performance of ethylbenzene separation from different composition of EB/pX mixtures. When the EB/pX mixture of 5:5 molar ratio applied for the separation experiment, it represented the highest separation factor. We also have studied about the effect of the atomic composition of zeolites on the separation performance within the temperature range from 160 to 220℃. TS-1 showed the highest permeation flux of 1,666 mol/㎡*s*Pa and Silicate-1 showed the highest separation factor of 1.73 at 200℃ respectively.

참고문헌 (Reference)

1 전유권, "마이크로웨이브로 제조된 TS-1 Membrane을 이용한 혼합 자일렌에서의 에틸벤젠 고순도화" 한국막학회 22 (22): 120-127, 2012

2 Ana M. Tarditi, "Xylene Isomerization in a Membrane Reactor Part I: The Synthesis of MFI Membranes for the p-xylene Separation" 122 : 167-174, 2006

3 K. Keizer, "Two Component Permeation Through Thin Zeolite MFI Membranes" 147 : 159-172, 1998

4 S.-E. Park, "Supramolecular Interactions and Morphology Control in Microwave Synthesis of Nanoporous Materials" 8 : 91-110, 2004

5 B. Sulikowski, "Structural and Catalytic Consequences of lsomorphous Substitution of Silicon by Aluminium and vice versa in the Framework of Pentasil Zeolites" 1542-1543, 1987

6 Z. Lai, "Siliceous ZSM-5 Membranes by Secondary Growth of b-Oriented Seed Layers" 14 : 716-729, 2004

7 X. Gu, "Separation of p-xylene From Multicomponent Vapor Mixtures Using Tubular MFI Zeolite Membranes" 280 : 624-633, 2006

8 G. Xomeritakis, "Separation of Xylene Isomer Vapors with Oriented MFI Membranes Made by Seeded Growth" 40 : 544-552, 2001

9 B. Lloyd, "Separation of Ethyl Benzene from p-xylene by Extractive Distillation"

10 K. T. Jung, "Preparation of ZSM-5 Zeolite Film and Its Formation Mechanism" 191 : 189-197, 2001

11 K. T. Jung, "Preparation of Transparent TS-1 Zeolite Film by Using Nanosized TS-1 Particles" 9 : 420-422, 1997

12 M. Taramasso, "Preparation of Porous Crystalline Synthetic Material Comprised of Silicon and Titanium Oxides"

13 G. Xomeritakis, "Permeation of Aromatic Isomer Vapors through Oriented MFI-Type Membranes Made by Secondary Growth" 11 : 875-878, 1999

14 Chelsey, D. Baertsch, "Permeation of Aromatic Hydrocarbon Vapors through Silicalite-Zeolite Membranes" 100 : 7676-7679, 1996

15 C. Algieri, "Permeation Properties of a Thin Silicalite-1 (MFI) Membrane" 222 : 181-190, 2003

16 G. Valerio, "Modeling of Boron Substitution in Zeolites and Implications on Lattice Parameters" 2 : 1091-1094, 2000

17 Y. Hu, "Microwave-assisted Hydrothermal Synthesis of Nanozeolites with Controllable size" 119 : 306-314, 2009

18 Y. Lu, "Continuous Formation of Supported Cubic and Hexagonalmesoporous Films by Sol-gel Dip-coating" 389 : 364-368, 1997

19 Z.-Y. Gu, "Adsorption and Separation of Xylene Isomers and Ethylbenzene on Two Zn-Terephthalate Metal-Organic Frameworks" 114 : 311-316, 2010