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DALIAN UNIVERSITY OF TECHNOLOGY Login 中文
Hongchen Guo

Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates


Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:School of Chemical Engineering
Discipline:Industrial Catalysis. Physical Chemistry (including Chemical Physics)
Business Address:521 Room,Chemical Engineering Building B,West Campus, Dalian University of Technology.
Contact Information:+86-411-84986120
E-Mail:hongchenguo@dlut.edu.cn
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Current position: Home >> Scientific Research >> Paper Publications

用偏铝酸钠溶液改性纳米ZSM-5沸石的研究

Hits : Praise

Indexed by:会议论文

Date of Publication:2013-08-29

Page Number:453-454

Key Words:改性纳米;ZSM-5沸石;铝酸钠溶液;改性沸石;固体产物;分离操作;稀硝酸;硅铝;结晶度;碱液;

Abstract:  本文利用多种表征手段研究了NaAlO2溶液后处理对制备介孔ZSM-5 沸石的影响.研究发现,用NaAlO2溶液改性纳米ZSM-5 沸石可以得到孔径较小的介孔,沸石产品收率明显提高,但产品的结晶度显著降低,固体产物过滤分离困难.用不同浓度的稀硝酸溶液处理NaAlO2溶液改性的沸石能够疏通其孔道,显著提高其比表面积,但对结晶度和分离操作帮助不大.NaAlO2溶液改性的主要问题在于偏铝酸根物种与溶解硅反应生成无定型硅铝相.