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[1]周林,张强,居沈贵.Ni2+对Cu+-13X分子筛动态吸附脱硫性能的影响[J].南京工业大学学报(自然科学版),2015,37(01):8-13.[doi:10.3969/j.issn.1671-7627.2015.01.002]
 ZHOU Lin,ZHANG Qiang,JU Shengui.Effects of Ni2+ on dynamic adsorption desulfurization performance of Cu+-13X molecular sieve[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2015,37(01):8-13.[doi:10.3969/j.issn.1671-7627.2015.01.002]
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Ni2+对Cu+-13X分子筛动态吸附脱硫性能的影响()
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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:
37
期数:
2015年01期
页码:
8-13
栏目:
出版日期:
2015-01-19

文章信息/Info

Title:
Effects of Ni2+ on dynamic adsorption desulfurization performance of Cu+-13X molecular sieve
文章编号:
1671-7627(2015)01-0008-06
作者:
周林张强居沈贵
南京工业大学 化学化工学院,江苏 南京 210009
Author(s):
ZHOU LinZHANG QiangJU Shengui
College of Chemistry and Chemical Engineering,Nanjing Tech University,Nanjing 210009,China
关键词:
过渡元素金属离子 脱硫 动态吸附 Cu+-13X分子筛 噻吩类硫化物
Keywords:
transition metal ions desulfurization dynamic adsorption Cu+-13X molecular sieve thiophenic sulfur
分类号:
TQ424.25;TE624.54
DOI:
10.3969/j.issn.1671-7627.2015.01.002
文献标志码:
A
摘要:
采用液相离子交换法制备Cu+-13X和Ni2+/Cu+-13X分子筛吸附剂,运用X线衍射仪(XRD)、扫描电子显微镜(SEM)和傅里叶红外光谱仪(FT-IR)等对样品进行表征。在常温和常压下,通过固定床吸附实验研究Cu+-13X和Ni2+/Cu+-13X对含有噻吩(TP)、2-乙基噻吩(2-ETP)的双组分模拟汽油的动态吸附脱硫性能。结果表明:Ni2+/Cu+-13X分子筛中Ni2+质量分数为1.54%时,Ni2+/Cu+-13X分子筛吸附脱硫效果最佳。动态吸附实验过程中,噻吩类硫化物与2种吸附剂之间均存在π配位作用,且噻吩与2-乙基噻吩之间存在竞争吸附,而Ni2+可以增大Cu+-13X吸附剂对2-乙基噻吩的吸附选择性; 负载的Ni可以作为一种助剂,增加Cu+-13X吸附剂对噻吩类硫化物的吸附量,在相同的实验条件下,经Ni2+改性后的Cu+-13X对噻吩和2-乙基噻吩的穿透吸附量和饱和吸附量分别增加了66.9%、35.5%和24.4%、18.2%。
Abstract:
To investigate the effects of transition metal ions Ni2+ on the dynamic adsorption desulfurization performances of Cu+-13X molecular sieve,Cu+-13X and Ni2+/Cu+-13X adsorbents were prepared by liquid phase ion exchange method and characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM), and Fourier transform infrared spectroscopy(FT-IR).The performances of adsorbents for thiophene(TP)and 2-ethyl thiophene(2-ETP)were investigated by the dynamic adsorption at room temperature and atmosphere pressure.Results showed that the best adsorption desulfurization performances of Ni2+/Cu+-13X could be obtained with 1.54% of the Ni2+ mass fraction.In the dynamic adsorption experiments,there was π complexation between adsorbents and thiophenic sulfur. Ni2+ could increase the adsorption selectivity of Cu+-13X adsorbent for 2-ETP.The load of Ni2+could be used as an auxiliary component to increase the adsorption content of Cu+-13X molecular sieve for thiophenic sulfur.Under the same experimental conditions,the breakthrough capacity and the saturation capacity of Cu+-13X modified by Ni2+ for TP and 2-ETP were increased to 66.9%,35.5% and 24.3%,18.2%,respectively.

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备注/Memo

备注/Memo:
收稿日期:2014-01-19
基金项目:国家自然科学基金(21176118)
作者简介:周林(1989—),女,江苏江都人,硕士,主要研究方向为吸附法脱除汽油中硫化物; 居沈贵(联系人),教授,E-mail:jushengui@njtech.edu.cn.
引用本文:周林,张强,居沈贵.Ni2+对Cu+-13X分子筛动态吸附脱硫性能的影响[J].南京工业大学学报:自然科学版,2015,37(1):8-13..
更新日期/Last Update: 2015-01-20