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《中国化学工程学报(英文版)》 2015-01
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Influence of monovalent alkaline metal cations on binder-free nano-zeolite X inpara-xylene separation

Milad Rasouli;Nakisa Yaghobi;Seyedeh Zahra Movassaghi Gilani;Hossein Atashi;Majid Rasouli;Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan;Petrochemical Department, Iran Polymer and Petrochemical Institute;Chemical Engineering Department, Amirkabir University of Technology;  
The adsorption process was studied for separating para-xylene from xylene mixture on modified nano-zeolite X in a breakthrough system. Nano-zeolitic adsorbent with different ratios of Si O2/Al2O3 was synthesized through hydrothermal process and ion-exchanged with alkaline metal cations like lithium, sodium and potassium. The product was characterized by X-ray diffraction, scanning electron microscopy(SEM), nitrogen adsorption,transform electron microscopy(TEM) and in situ Fourier transform infrared(FTIR) spectroscopy. The influence of nano-zeolite water content and desorbent type on the selectivity of para-xylene toward other C8 aromatic isomers was studied. The optimization of adsorption process was also investigated under variable operation conditions. The isotherm for each isomer of C8 aromatics and the desorbents possess the adsorption characteristics of Langmuir type. The selectivity factor of para-xylene relative to each of meta-xylene, ortho-xylene and ethylbenzene under the optimum conditions obtained to be 5.36, 2.43 and 3.22, in the order given.
【CateGory Index】: TQ241.13;TQ424
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【Citations】
Chinese Journal Full-text Database 2 Hits
1 Wei Deng;Xuan He;Chao Zhang;Yunyi Gao;Xuedong Zhu;Kake Zhu;Qisheng Huo;Zhijie Zhou;College of Chemical Engineering,East China University of Science and Technology;State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,College of Chemistry,Jilin University;Key Laboratory of Coal Gasification,Ministry of Education,East China University of Science and Technology;;Promoting Xylene Production in Benzene Methylation using Hierarchically Porous ZSM-5 Derived from a Modified Dry-gel Route[J];Chinese Journal of Chemical Engineering;2014-08
2 Emilia Otal;Luís F.Vilches;Yolanda Luna;Rodrigo Poblete;Juan M.García-Maya;Constantino Fernández-Pereira;Department of Chemical and Environmental Engineering,School of Engineering,University of Seville;;Ammonium Ion Adsorption and Settleability Improvement Achieved in a Synthetic Zeolite-Amended Activated Sludge[J];Chinese Journal of Chemical Engineering;2013-09
【Co-citations】
Chinese Journal Full-text Database 5 Hits
1 DENG Lulu;XU Qiyong;WU Huanan;Shenzhen Engineering Laboratory for Eco-efficient Polysilicate Materials, School of Environment and Energy,Shenzhen Graduate School, Peking University;;Activated Sludge Process with Solid Additive of Fine Particle Carriers[J];环境科学与技术;2015-S1
2 LI Gang-sen;ZHANG Dong;ZHANG Ya-dong;College of Chemical Engineering,Zhengzhou University;College of Material and Chemical Engineering,Zhengzhou University of Light Industry;;Deactivation Mechanism of Modified HZSM-5 for the Synthesis of Glycol Ether[J];精细化工;2015-06
3 Milad Rasouli;Nakisa Yaghobi;Seyedeh Zahra Movassaghi Gilani;Hossein Atashi;Majid Rasouli;Department of Chemical Engineering, Faculty of Engineering, University of Sistan and Baluchestan;Petrochemical Department, Iran Polymer and Petrochemical Institute;Chemical Engineering Department, Amirkabir University of Technology;;Influence of monovalent alkaline metal cations on binder-free nano-zeolite X inpara-xylene separation[J];Chinese Journal of Chemical Engineering;2015-01
4 Zhang Baozhong;Liu Xiaopeng;General Research Institute for Nonferrous Metals;SINOPEC Tianjin Company;;Catalytic Performance of MFI/MFI Core-Shell Zeolites in Benzene Methylation[J];China Petroleum Processing & Petrochemical Technology;2014-04
5 Zhongqi Ren;Xinyan Zhu;Wei Liu;Wei Sun;Weidong Zhang;Junteng Liu;Beijing Key Laboratory of Membrane Science and Technology, Beijing University of Chemical Technology;;Removal of Aniline from Wastewater Using Hollow Fiber Renewal Liquid Membrane[J];Chinese Journal of Chemical Engineering;2014-Z1
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Chinese Journal Full-text Database 1 Hits
1 XU Ouguana,**,SU Hongye a,JI Jianbing b,JIN Xiaoming a and CHU Jiana aNational Key Laboratory of Industrial Control Technology,Institute of Advanced Process Control,Zhejiang Uni- versity,Hangzhou 310027,ChinabC ollege of Chemical Engineering and Materials Science,Zhejiang University of Technology,Hangzhou 310032, China;Kinetic Model and Simulation Analysis for Toluene Disproportionation and C_9-Aromatics Transalkylation[J];Chinese Journal of Chemical Engineering;2007-03
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