石油学报(石油加工) ›› 2017, Vol. 33 ›› Issue (5): 919-926.doi: 10.3969/j.issn.1001-8719.2017.05.014

• 研究报道 • 上一篇    下一篇

Cu-β/SBA-15的制备及吸附脱硫性能

杨静, 明阳 ,孙宇 ,王俊丰, 石薇薇 ,沈健   

  1. 辽宁石油化工大学 石油化工学院, 辽宁  抚顺 113001
  • 收稿日期:2016-09-28 修回日期:2017-01-12 出版日期:2017-09-25 发布日期:2017-11-29
  • 通讯作者: 石薇薇,女,实验师,从事清洁燃料生产新工艺方面的研究;E-mail:shiweiwei1980@163.com E-mail:shiweiwei1980@163.com
  • 作者简介:第一作者:杨静,女,硕士研究生,从事清洁燃料生产方面的研究;E-mail: 18341310531@163.com

Preparation and Adsorption Desulfurization Performance of Cu-β/SBA-15 Composite Molecular Sieves

YANG Jing, MING Yang, SUN Yu, WANG Junfeng, SHI Weiwei, SHEN Jian   

  1. College of Petrochemical Engineering, Liaoning Shihua University, Fushun 113001, China
  • Received:2016-09-28 Revised:2017-01-12 Online:2017-09-25 Published:2017-11-29

摘要: 以β/SBA15复合分子筛为载体,采用浸渍法制备Cuβ/SBA15吸附剂,利用XRD、N2吸附脱附、NH3TPD、PyFTIR和TGDTA等技术手段对吸附剂进行表征分析。以模拟柴油为原料,采用静态吸附法考察制备条件对Cuβ/SBA15吸附脱硫性能的影响。结果表明,Cu负载量为15%、焙烧温度400℃、焙烧时间5 h时,所制备的Cuβ/SBA15吸附剂硫容量最高;在该条件下制备的Cuβ/SBA15能够很好地保持β/SBA15的微介孔复合结构;β分子筛次级结构单元的引入提高了Cuβ/SBA15吸附剂的结构稳定性,进而提高了其再生性能。

关键词: Cu-β/SBA-15, 吸附脱硫;柴油;再生

Abstract: Using the β/SBA15 composite molecular sieves as support, and the adsorbent of Cuβ/SBA15 was synthesized by the impregnation method, and the samples were characterized by means of XRD, N2 adsorptiondesorption, NH3TPD, PyFTIR and TGDTA. Using simulate diesel oil as raw material, the effects of preparation conditions on adsorption desulfurization were investigated by the static adsorption method. The results indicated that when the optimum mass fractions of Cu was 15%, and corresponding calcination temperature and time were 400℃ and 5 h, respectively, the adsorbent sulfur capacity was the highest. The Cuβ/SBA15 that was adsorbent prepared under the optimum of conditions could retain the micromesoporous composite structure of β/SBA15 well. The introduction of β zeolite secondary structure elements enhanced the structural stability of the adsorbent, thus improving the performance of the adsorbent regeneration.

Key words: Cu-β/SBA-15, adsorptive desulfurization, diesel, regeneration