辽宁石油化工大学学报 ›› 2009, Vol. 29 ›› Issue (3): 1-4.

• 石油化工 •    下一篇

Cu(Ⅰ)Y 分子筛对不同硫化物的选择性吸附脱硫

刘黎明1 , 王洪国2 , 靳玲玲1 , 鞠秀芳1 , 宋丽娟1,2   

  1. 1 .辽宁石油化工大学辽宁省石油化工重点实验室, 辽宁抚顺113001 ;2 .中国石油大学化学化工学院, 山东东营257061
  • 收稿日期:2009-04-07 出版日期:2009-09-25 发布日期:2017-07-05
  • 作者简介:刘黎明(1983 -), 女, 山东淄博市, 在读硕士
  • 基金资助:
    国家自然科学基金资助项目(20476042 ,
    20776064);国家重点基础研究计划973 项目
    (2007CB216403)

Adsorptive Desulfurization of Different Sulfur Compounds on Cu(Ⅰ)Y Zeolites

LIU Li-ming1WANG Hong-guo2, JIN Ling-ling1, JU Xiu-fang1, SONG Li-juan1,2*   

  1. 1.The Key Laboratory of Liaoning Province, Liaoning University of Petroleum & Chemical Technology, Fushun Liaoning 113001, P. R. China; 2. School of Chemistry & Chemical, The University of Petroleum, Dongying Shandong 257061, P. R. China
  • Received:2009-04-07 Published:2009-09-25 Online:2017-07-05

摘要: 采用液相离子交换方法且在高温N2 氛下制备Cu(Ⅰ)Y 分子筛。通过固定床、SCD 色谱考察Cu(Ⅰ)
Y 对噻吩(T)、苯并噻吩(BT)、二苯并噻吩(DBT)及4, 6 -二甲基二苯并噻吩(4 , 6 -DMDBT)的选择性吸附。结果
表明, Cu(Ⅰ)Y 对于不同硫化物溶液脱硫效果依次为:苯并噻吩>二苯并噻吩>4, 6 -二甲基二苯并噻吩>噻吩。
为了进一步研究不同硫化物在Cu(Ⅰ)Y 分子筛上的吸附行为, 利用密度泛函理论计算了上述不同硫化物在Cu(Ⅰ)
Y 分子筛上的吸附能, 分子模拟结果表明, 不同的硫化物在Cu(Ⅰ)Y 分子筛表面上的吸附能为:苯并噻吩为-96.4
kJ/mo l, 二苯并噻吩为-88 .5 kJ/ mol , 噻吩为-111 .5 kJ/mo l, 4, 6-二甲基二苯并噻吩为-83 .7 kJ/ mol 。计算结果
和实验值基本吻合。

关键词: Cu(Ⅰ)Y 分子筛 , 吸附脱硫 , 密度泛函理论

Abstract: Cu(Ⅰ)Y zeolites was prepared with liquid phase ion exchange under the condition of N2 at high temperature.The desulfurization of different sulfur compounds was studied on the Cu(Ⅰ)Y zeolites in a fixed bed adsorber at ambient temperature and pressure and a SCD GC . The results show that the performance of the compounds decreases as follows: benzothiophene (BT) >dibenzothiophene(DBT) >4,6-dimethyldibenzothiophene (4,6-DMDBT) >thiophene (TP) . For the same purpose the adsorption was also calculated in terms of density functional theory (DFT) . The results show the adsorption energies of the thiophenic compounds as follows: benzothiophen (BT) -96.4 kJ/mol, dibenzothiophene (DBT) -88.5 kJ/mol, thiophene (TP) -111.5 kJ/mol, 4,6-dimethyldibenzothiophene (4,6-DMDBT) -83.7 kJ/mol. The results agree with the experiments.

Key words: Cu(Ⅰ)Y zeolites , Adsorptive desulfurization , Density functional theory

引用本文

刘黎明,王洪国,靳玲玲, 鞠秀芳, 宋丽娟. Cu(Ⅰ)Y 分子筛对不同硫化物的选择性吸附脱硫[J]. 辽宁石油化工大学学报, 2009, 29(3): 1-4.

LIU Li-ming,WANG Hong-guo, JIN Ling-ling, JU Xiu-fang, SONG Li-juan. Adsorptive Desulfurization of Different Sulfur Compounds on Cu(Ⅰ)Y Zeolites[J]. Journal of Liaoning Petrochemical University, 2009, 29(3): 1-4.

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