Synthesis of high performance mordenite membranes from fluoride-containing dilute solution under microwave-assisted heating

Li, Liangqing; Yang, Jianhua; Li, Jiajia; Han, Pan; Wang, Jiaxuan; Zhao, Ye; Wang, Jinqu; Lu, Jinming; Yin, Daqiang; Zhang, Yan

doi:10.1016/j.memsci.2016.03.056

Cited by 22 publications

(6 citation statements)

References 56 publications

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“…To improve the mechanical strength of the TFC membranes, Han et al (2016) developed a mesh-reinforced substrate by combining the strength of robust polyester (PET) open mesh with hydrophilic sPPSU and used it to develop high-performance TFC membranes. The resultant membrane substrate showed a small membrane thickness (45 μm), small structural parameter (<300 μm), and high mechanical strength (59-80 MPa).…”

Section: Polymer/polymer-polymer Blended Substratementioning

confidence: 99%

Advanced Materials for Polymeric Ultrafiltration Membranes Fabrication and Modification

Muhamad¹,

Nazri²,

Lau³

et al. 2018

Advanced Materials for Membrane Fabrication and Modification

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This book contains information obtained from authentic and highly regarded sources. Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. The authors and publishers have attempted to trace the copyright holders of all material reproduced in this publication and apologize to copyright holders if permission to publish in this form has not been obtained. If any copyright material has not been acknowledged please write and let us know so we may rectify in any future reprint.Except as permitted under U.S. Copyright Law, no part of this book may be reprinted, reproduced, transmitted, or utilized in any form by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying, microfilming, and recording, or in any information storage or retrieval system, without written permission from the publishers.

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Section: Polymer/polymer-polymer Blended Substratementioning

confidence: 99%

Advanced Materials for Polymeric Ultrafiltration Membranes Fabrication and Modification

Muhamad¹,

Nazri²,

Lau³

et al. 2018

Advanced Materials for Membrane Fabrication and Modification

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show abstract

“…This seeding method is reported to allow for reproducible membrane manufacturing of relatively thick films on coarse supports. Based on the varying temperature hot dip coating method, several types of zeolite membranes, such as NaA [71], T [72], MOR [73], and ZSM-5 [70], have been prepared.…”

Section: Preparation Of Hydrophilic Zeolite Membranesmentioning

confidence: 99%

Mass transfer model, preparation and applications of zeolite membranes for pervaporation dehydration: A review

Zhang

Peng

et al. 2017

Chinese Journal of Chemical Engineering

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Pervaporation (including vapor permeation) is a kind of new membrane separation technology, possessing the advantages of high efficiency, energy saving and convenient operation. It has promising application in the separation and purification of organic solvents. Dehydration is an important step in the production and recovery of organic solvents. Zeolite membranes have attracted wide attention for pervaporation dehydration due to their high separation performance and good thermal/chemical stability. So far, zeolite membranes have been preliminarily industrialized for dehydration of organic solvents. This paper reviews the recent development of zeolite membranes for pervaporation dehydration, including mass transfer models, preparation and applications of zeolite membranes. The review also discusses the current industrial applications of zeolite membranes and their future development in pervaporation.

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“…However, the selectivity of DIB achieved over the MOR (1D) was the highest selectivity of DIB with the one of approximately 90%. 97 The MOR can be dealuminated over nitric acid (HNO 3 ), 205 microwave, 206,207 and chemical reagents. 208 The effect of topology (2-D versus 3-D) in dimerization of isobutylene using ferrierite zeolite (FER) with two-dimensional channels (2D) and ZSM-5 zeolite (MFI) with three-dimensional channels (3D) was also observed by Yoon et al 98 Both catalysts were calcinated at 550 °C for 8 h then converted into the proton form and then heated at 300 °C for 10 h. Even though, the FER (2D) showed a very stable conversion with the one of 100% up to 12 h, the selectivity of DIB obtained over FER (2D) was much smaller than over MFI (3D) because of the smaller dimensional channel.…”

Section: Effect Of Heterogeneous Catalystsmentioning

confidence: 99%

Conversion of Isobutylene to Octane-Booster Compounds after Methyl tert-Butyl Ether Phaseout: The Role of Heterogeneous Catalysis

Mahdi

Muraza

2016

Ind. Eng. Chem. Res.

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Over the last decades, the global demand of the production of methyl tert-butyl ether (MTBE) was significantly decreased from 30 million tons per year (MTPY) in 1995 to 12 million tons per year (MTPY) in 2011 because of the phaseout of MTBE in the United States and other countries. MTBE was banned in some countries because it produces health and environmental pollution and contaminates water and air quality. After MTBE phaseout, isobutylene feedstock is used for the production of another octane booster compound such as isooctane with a more environmental-friendly reputation. Isooctane is obtained by dimerization, trimerization, and oligomerization of isobutylene followed by a hydrogenation step. Dimerization of isobutylene to isooctane is a simple and low-cost-effective technology using heterogeneous catalysts such as zeolites, metal oxides, and resins. Zeolites are potential catalyst with high selectivity, high stability, easy regeneration, and low-cost production. The conversion and selectivity can be increased with higher acid strength, a larger dimensional channel, and higher pore size. USY zeolite (FAU topology) is a promising zeolite framework to be improved in the dimerization of isobutylene. Further improvement of USY zeolite has been emphasized as needed to develop better dimerization catalysts.

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Synthesis of high performance mordenite membranes from fluoride-containing dilute solution under microwave-assisted heating

Cited by 22 publications

References 56 publications

Advanced Materials for Polymeric Ultrafiltration Membranes Fabrication and Modification

Advanced Materials for Polymeric Ultrafiltration Membranes Fabrication and Modification

Mass transfer model, preparation and applications of zeolite membranes for pervaporation dehydration: A review

Conversion of Isobutylene to Octane-Booster Compounds after Methyl tert-Butyl Ether Phaseout: The Role of Heterogeneous Catalysis

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