Separation of butane isomers by MFI membranes synthesized in a flow system

Date

2006-11-20

Author

Çulfaz Emecen, Pınar Zeynep
Kalıpçılar, Halil

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

216
views

0
downloads

MFI type zeolites are the most widely studied zeolites for membrane separations. Conventionally, zeolite membranes are prepared in batch systems by hydrothermal synthesis [1–3]. This method has several disadvantages for use in industrial scale for the synthesis of membranes with large areas and complex geometries that are commonly used in membrane modules. An alternative to batch synthesis is using a flow system where the synthesis solution is flown over the support. In a flow system, much better homogeneity can be provided in terms of the synthesis conditions at different sites of the support. Such a system therefore could be more flexible to prepare membranes with large surface area.

Subject Keywords

Mechanical Engineering, General Materials Science, General Chemistry, General Chemical Engineering, Water Science and Technology

URI

https://hdl.handle.net/11511/37270

Journal

DESALINATION

DOI

https://doi.org/10.1016/j.desal.2006.03.217

Collections

Department of Chemical Engineering, Article

Suggestions

OpenMETU
Core

Synthesis of mfı type zeolite membranes in a continuous system Çulfaz, Pınar Zeynep; Kalıpçılar, Halil; Department of Chemical Engineering (2005) MFI type zeolites, are the most widely studied zeolites for membrane separations. Conventionally, zeolite membranes are prepared in batch systems by hydrothermal synthesis in autoclaves. This method has several disadvantages for use in industrial scale for the synthesis of membranes with large areas and complex geometries that are commonly used in membrane modules. The objective of this study is to prepare MFI type zeolite membranes on tubular alumina supports in a continuous system where the synthesis solu...
Integration of a Genetically Encoded Calcium Molecular Sensor into Photopolymerizable Hydrogels for Micro-Optrode-Based Sensing Kahyaoğlu, Leyla Nesrin; Park, Joon Hyeong; Rickus, Jenna L. (American Chemical Society (ACS), 2017-09-20) Genetically encoded molecular-protein sensors (GEMS) are engineered to sense and quantify a wide range of biological substances and events in cells, in vitro and even in vivo with high spatial and temporal resolution. Here, we aim to stably incorporate these proteins into a photopatternable matrix, while preserving their functionality, to extend the application of these proteins as spatially addressable optical biosensors. For this reason, we examined the fabrication of 3D hydrogel microtips doped with a ge...
Utilization of pretreated molasses for serine alkaline protease production with recombinant Bacillus species Calik, G; Pehlivan, N; Kalender, N; Ozdamar, TH; Çalık, Pınar (Informa UK Limited, 2003-05-01) Recombinant Bacillus amyloliquefaciens, Bacillus cereus, Bacillus subtilis , and Bacillus licheniformis were used for the production of serine alkaline protease (SAP) utilizing chemically and/or physically pretreated molasses. The highest enzyme activity was obtained with r- Bacillus subtilis , with the complex medium involving physically treated molasses having 20 kg m(-3) initial sucrose concentration in small-scale, agitation- and heating rate-controlled bioreactors at t=63 h. Effects of oxygen transfer ...
Preparation and labeling of surface-modified magnetoferritin protein cages with a rhenium(I) carbonyl complex for magnetically targeted radiotherapy Aslan, Tugba Nur; Asik, Elif; Volkan, Mürvet (Royal Society of Chemistry (RSC), 2016-01-01) New rhenium radiolabeled compounds are of general interest due to their nuclear characteristics which allow radiotherapy and in situ monitoring of tumor uptake. Biocompatible magnetic nanoparticles capable of transporting radionuclides, providing MRI contrast agent properties for imaging and a therapeutic effect in the target tissue simultaneously, are highly desirable. Herein we describe the preparation of magnetoferritin samples, and their labeling with rhenium in the form of the low oxidation state rheni...
Separation of gas and organic/water mixtures by MFI type zeolite membranes synthesized in a flow system Soydas, Belma; Dede, Oezlem; Culfaz, Ali; Kalıpçılar, Halil (Elsevier BV, 2010-01-01) MFI type zeolite membranes were synthesized in a recirculating flow system at 95 degrees C where the synthesis solution was flown over the tubular alpha-alumina supports. The performance of the membranes for the separation of binary gas mixtures and alcohol/water liquid mixtures was investigated. A membrane synthesized by two consecutive synthesis steps had a separation selectivity of 15 and 11 for equimolar mixtures of n-C4H10/CH4 and n-C4H10/N-2 at 200 degrees C, respectively. The membrane selectively per...

Citation Formats

P. Z. Çulfaz Emecen and H. Kalıpçılar, “Separation of butane isomers by MFI membranes synthesized in a flow system,” DESALINATION, pp. 357–359, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/37270.