石油化工高等学校学报

石油化工高等学校学报 ›› 2014, Vol. 27 ›› Issue (2): 26-31.DOI: 10.3969/j.issn.1006-396X.2014.02.006

• 石油化工 • 上一篇    下一篇

C e Y分子筛对 HD S汽油的吸附脱硫及表面酸性的影响规律

  

  1. ( 1. 辽宁石油化工大学石油化工催化科学与技术重点实验室, 辽宁抚顺1 1 3 0 0 1; 2. 中国石油大学( 华东) 化学工程学院,山东青岛2 6 6 5 5 5; 3. 抚顺师范高等专科学校生化系, 辽宁抚顺1 1 3 0 0 6)
  • 收稿日期:2014-03-05 修回日期:2014-03-16 出版日期:2014-04-25 发布日期:2014-06-16
  • 通讯作者: 宋丽娟( 1 9 6 2 - ) , 女, 博士, 教授, 从事新型催化材料及工艺的研发, 催化及分离材料的吸附、 扩散及相关动力学的 研究; E - m a i l : l s o n g 5 6@2 6 3. n e t 。
  • 作者简介:范跃超( 1 9 8 8 - ) , 男, 硕士研究生, 从事清洁燃料生产的研究工作; E - m a i l : 5 3 9 8 8 1 5@1 6 3. c o m。
  • 基金资助:
    国家自然科学基金项目 ( 2 0 9 7 6 0 7 7, 2 1 0 7 6 1 0 0);中国石油天然气股份有限公司炼油催化剂重大专项 ( 1 0 - 0 1 A - 0 1 -0 1 - 0 1) ;辽宁省高校创新团队项目( 2 0 0 7 T 1 1 0) ; 辽宁省高端人才队伍建设项目资助。

Adsorptive Desulfurization of HDS Gasoline by CeY Zeolites and the Infiuence Iaw of Surface Acidity

  1. (1.Key Laboratory of Petrochemical Catalytic Science and Technology, Liaoning Shihua University, Fushun Liaoning113001, China; 2. College of Chemical Engineering, China University of Petroleum, Qingdao Shandong 266555, China;  3. Department of Biochemistry, Fushun Normal College, Fushun Liaoning113006, China)
  • Received:2014-03-05 Revised:2014-03-16 Published:2014-04-25 Online:2014-06-16

摘要: 用固相离子交换和液相离子交换法制备了C e Y分子筛, 利用 X射线衍射( XR D) 、 N2 物理吸附脱附、电感耦合等离子原子发射光谱仪( I C P) 等方法表征了吸附剂的物理性质, 借助 NH3 - T P D及吡啶 - 原位傅里叶变换红外( P y - F T I R) 技术考察了吸附剂表面的酸度分布及酸类型。采用固定床动态吸附实验和色谱 - 硫化学发光检测( G C -S C D) 偶联技术系统考查了改性 Y分子筛对加氢脱硫燃料油的吸附脱硫性能。结果表明, 4种 Y分子筛对加氢脱硫油脱硫能力大小顺序为S - C e Y>L - C e Y>N a Y>HY。表面酸性的差异显著地影响分子筛的吸附脱硫性能, 两种方法制备的C e Y分子筛表面酸性与 N a Y原粉差异较大, 分子筛表面B酸中心是噻吩发生催化反应的活性中心。

关键词: C e Y分子筛,   ,  , 吸附脱硫,    ,  , 加氢脱硫油,    ,  , 表面酸性,   ,  催化反应

Abstract: CeY zeolites were prepared by liquid phase ion exchange (LPIE) and solid state ion exchange (SSIE). The adsorbents were characterized by means of XRD,N2 physisorption,ICP and the total surface acidity of the adsorbents was monitored by NH3TPD and in situ FTIR spectroscopy using pyridine as a probe. Properties of selective adsorptive desulfurization of HDS gasolines on the adsorbents have been investigated in this paper by using a fixedbed adsorber and a GCSCD technique. The adsorption capacity was found to follow the order of SCeY>LCeY>NaY>HY. After LPIE and SSIE, and CeY zeolites had different surface acidity from NaY and HY, which greatly affected the adsorption desulfurization process. Additionally, Brnsted (B) acid sites was thought toresult in catalytic reaction of thiophene.

Key words: CeY zeolite,    ,  Adsorptive desulfurization,    ,  Hydrodesulfurized fuels,    , Surface acidity,    ,  Catalytic reaction

引用本文

范跃超, 董世伟, 秦玉才. C e Y分子筛对 HD S汽油的吸附脱硫及表面酸性的影响规律[J]. 石油化工高等学校学报, 2014, 27(2): 26-31.

Fan Yuechao, Dong Shiwei, Qin Yucai,et al. Adsorptive Desulfurization of HDS Gasoline by CeY Zeolites and the Infiuence Iaw of Surface Acidity[J]. Journal of Petrochemical Universities, 2014, 27(2): 26-31.

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