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[1]张强,祁伟建,居沈贵.Mn改性Cu+-13X对双组分硫化物的动力学与动态吸附性能[J].南京工业大学学报(自然科学版),2016,38(02):119-124.[doi:10.3969/j.issn.1671-7627.2016.02.022]
 ZHANG Qiang,QI Weijian,JU Shengui.Kinetics and dynamic adsorption of bicomponent sufides on Mn modified Cu+-13X[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(02):119-124.[doi:10.3969/j.issn.1671-7627.2016.02.022]
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Mn改性Cu+-13X对双组分硫化物的动力学与动态吸附性能()
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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:
38
期数:
2016年02期
页码:
119-124
栏目:
出版日期:
2016-04-10

文章信息/Info

Title:
Kinetics and dynamic adsorption of bicomponent sufides on Mn modified Cu+-13X
文章编号:
1671-7627(2016)02-0119-06
作者:
张强祁伟建居沈贵
南京工业大学 化工学院,江苏 南京 210009
Author(s):
ZHANG QiangQI WeijianJU Shengui
College of Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
Mn2+/Cu+-13X 吸附脱硫 吸附动力学 动态吸附
Keywords:
Mn2+/Cu+-13X adsorptive desulfurization adsorption kinetics dynamic adsorption
分类号:
TQ424.25;TE624.54
DOI:
10.3969/j.issn.1671-7627.2016.02.022
文献标志码:
A
摘要:
利用液相离子交换法制备Cu+-13X与Mn2+/Cu+-13X吸附剂。吸附剂晶体结构使用X线衍射仪(XRD)和激光拉曼光谱进行表征。在常温常压下,将噻吩(TP)与苯并噻吩(BT)溶入正己烷溶液,用作模拟汽油,通过吸附动力学实验与动态吸附实验考察2种吸附剂对噻吩和苯并噻吩的吸附性能。以Crank模型对动力学吸附实验结果进行拟合。结果表明:Mn2+的引入提高了苯并噻吩在吸附剂中的扩散系数; 单组分动态实验中,Mn2+改性后的Cu+-13X对噻吩与苯并噻吩的最大吸附容量为48.66 mg/g与89.99 mg/g,较原先分别提高了13.8%与17.5%; 双组分动态实验中,苯并噻吩在与噻吩的竞争吸附中占优势,对噻吩的置换量为10.01 mg/g。4次再生后的Mn2+/Cu+-13X仍可保证70%以上的脱硫效率。
Abstract:
Cu+-13X and Mn2+/Cu+-13X adsorbents were prepared by liquid phase ion exchange reaction.The adsorbents were characterized by X-ray diffraction(XRD)and laser-Raman spectra.Adding thiophene(TP)and benzothiophene(BT)into n-hexane as model fuels,the dynamic adsorption and kinetics adsorption experiments at room temperature and atmosphere pressure were carried out.The Crank diffusion model was used to fit the kinetics data.Results showed that the adding of Mn2+ improved the BT diffusion coefficient in the adsorbent. The largest adsorption amounts on Mn2+modified Cu+-13X for TP and BT were 48.66 mg/g and 89.99 mg/g,increased 13.8% and 17.5% than the original adsorption ones.BT played a predominant role in the competitive adsorption with TP and replaced 10.01 mg/g TP in the bicomponent dynamic experiment.Mn2+/Cu+-13X could ensure more than 70% of the desulfurization efficiency after using cycles four times.

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备注/Memo

备注/Memo:
收稿日期:2015-04-08
基金项目:国家自然科学基金(21176118)
作者简介:张强(1987—),男,江苏南通人,硕士,主要研究方向为吸附脱硫; 居沈贵(联系人),教授,E-mail:jushengui@njtech.edu.cn.
引用本文:张强,祁伟建,居沈贵.Mn改性Cu+-13X对双组分硫化物的动力学与动态吸附性能[J].南京工业大学学报(自然科学版),2016,38(2):119-124..
更新日期/Last Update: 2016-03-20