催化学报

催化学报 ›› 2010, Vol. 31 ›› Issue (7): 833-838.

• 研究论文 • 上一篇    下一篇

以催化裂化废催化剂粉合成超细 Y 型分子筛

刘欣梅, 梁海宁, 李亮, 杨婷婷, 阎子峰   

  1. 中国石油大学重质油国家重点实验室, CNPC 催化重点实验室, 山东青岛 266555
  • 收稿日期:2010-07-25 出版日期:2010-07-25 发布日期:2010-07-25

Preparation of Ultrafine Y Zeolite from Spent Fluid Catalytic Cracking Catalyst Powders

LIU Xinmei*, LIANG Haining, LI Liang, YANG Tingting, YAN Zifeng   

  1. State Key Laboratory of Heavy Oil Processing, CNPC Key Laboratory of Catalysis, China University of Petroleum, Qingdao 266555, Shandong, China
  • Received:2010-07-25 Online:2010-07-25 Published:2010-07-25

PDF

1109

被引次数

25

摘要： 针对催化裂化 (FCC) 废催化剂细粉带来的环境污染和未开发利用的现状, 以此为原料合成了小晶粒 Y 型分子筛, 并采用 X 射线衍射、扫描电镜、29Si和27Al 固体核磁共振和激光粒度分析等技术对样品进行了表征. 结果表明, 以 FCC 废催化剂细粉为原料可以合成粒径为 200 nm 左右的 Y 型分子筛, 且制备过程中原料的活化方法和导向剂对所得样品结构影响很大. 对原料采用碱熔活化, 并在合成体系中加入导向剂, 所得 Y 型分子筛的相对结晶度提高, 比表面积增大, 粒度减小.

关键词: 催化裂化废催化剂, Y 型分子筛, 粒度, 活化

Abstract: Ultrafine Y zeolite was successfully prepared by a hydrothermal crystallization method using spent fluid catalytic cracking catalyst powders as the raw material. The sample was characterized by X-ray diffraction, electron microscopy, 29Si and 27Al solid state nuclear magnetic resonance, and particle size analysis. The results showed that the Y zeolite with particle size of 200 nm can be synthesized. The structure of the Y zeolite is strongly influenced by the activation method and the amount of structure directing agent. In the presence of the structure directing agent, the relative crystallinity and the surface area of the Y zeolite increased and the particle size decreased when the spent catalyst is activated by alkali.

Key words: fluid catalytic cracking, spent catalyst, Y zeolite, particle size, activation