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[1]王波,居沈贵.改性ZSM-5分子筛膜错流过滤分离苯并噻吩/3-甲基噻吩[J].南京工业大学学报(自然科学版),2013,35(03):30-35.[doi:10.3969/j.issn.1671-7627.2013.03.007]
 WANG Bo,JU Shengui.ZSM-5 zeolite membrane separation performance of BT/3-MT by cross-flow filtration[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(03):30-35.[doi:10.3969/j.issn.1671-7627.2013.03.007]
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改性ZSM-5分子筛膜错流过滤分离苯并噻吩/3-甲基噻吩()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
35
期数:
2013年03期
页码:
30-35
栏目:
出版日期:
2013-05-20

文章信息/Info

Title:
ZSM-5 zeolite membrane separation performance of BT/3-MT by cross-flow filtration
文章编号:
1671-7627(2013)03-0030-06
作者:
王波居沈贵
南京工业大学 化学化工学院,江苏 南京 210009
Author(s):
WANG BoJU Shengui
College of Chemistry and Chemical Engineering,Nanjing University of Technology,Nanjing 210009,China
关键词:
ZSM-5分子筛膜 改性 苯并噻吩 3-甲基噻吩
Keywords:
ZSM-5 zeolite membranes modification BT 3-MT
分类号:
TQ028
DOI:
10.3969/j.issn.1671-7627.2013.03.007
文献标志码:
A
摘要:
二次水热合成法制得ZSM-5分子筛膜,经X线衍射光谱仪(XRD)和扫描电子显微镜(SEM)表征后,确定所合成为ZSM-5分子筛膜,对其进行Ag+、Cu2+、Zn2+金属离子改性,错流过滤下分离含苯并噻吩/3-甲基噻吩的正己烷模拟汽油,并考察了离子浓度、活化温度、再生时间、再生次数对脱硫效果的影响。结果表明:负载浓度为0.2 mol/L的Ag+对苯并噻吩/3-甲基噻吩的脱除率可达75%,分离因子最大接近1.6; 活化温度在550 ℃时脱硫效果最佳; 使用后的膜经再生4 h、再生2次以内可恢复一定的性能。
Abstract:
ZSM-5 zeolite membranes were prepared by a second-step hydrothermal synthesis method and characterized by X-ray diffraction(XRD)and scanning electron microscope(SEM).The membranes were modified by Ag+,Cu2+,Zn2+metal ions and used to remove benzothiophene/3-methylthiophene(BT/3-MT)from n-hexane by cross-flow filtration.Effects of ion concentration,activation temperature,regeneration time and regeneration frequencies on desulfurization were studied.The results showed that the best separation factor amounted to 1.6 and the desulfurization ratio amounted to 75% when ZSM-5 zeolite loaded with 0.2 mol/L Ag+ solution.The most suitable activation temperature was 550 ℃.The used membranes could restore certain performance when regeneration time was 4 h and regenerated twice.

参考文献/References:

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相似文献/References:

[1]薛宁,刘晴,居沈贵.负载金属离子ZSM-5分子筛膜脱除苯并噻吩二苯并噻吩的性能[J].南京工业大学学报(自然科学版),2011,33(04):63.[doi:10.3969/j.issn.1671-7627.2011.04.014]
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备注/Memo

备注/Memo:
收稿日期:2012-05-05
基金项目:国家自然科学基金(21176118)
作者简介:王波(1986—),男,江苏南通人,硕士生,主要研究方向为膜法脱除汽油中硫化物; 居沈贵(联系人),教授,E-mail: jushengui@163.com..
更新日期/Last Update: 2013-05-31