Y型分子筛复合材料的改性及其裂化性能  

MODIFICATION OF Y ZEOLITE CONTAINING COMPOSITE MATERIAL AND ITS CRACKING PERFORMANCE

作　　者：周继红[1] 陈振宇[1] 朱玉霞[1] 罗一斌[1] 

机构地区：[1]石油化工科学研究院石油化工催化材料与反应工程国家重点实验室,北京100083

出　　处：《石油炼制与化工》2010年第5期34-38,共5页Petroleum Processing and Petrochemicals

基　　金：国家重点基础研究发展计划"973"项目(2006CB202502)

摘　　要：采用两交一焙的工艺对Y型分子筛复合材料(NSY)进行改性处理,采用X射线衍射、X射线荧光光谱仪、氮气吸附法、差热分析仪等测试了改性后NSY的物化性能。将改性后稀土含量不同的NSY复合材料制备催化剂,采用小型固定流化床考察了催化剂的催化裂化性能。结果表明,稀土含量高的NSY复合材料具有好的重油转化能力和高的汽柴油收率;稀土含量低的NSY复合材料具有较好的焦炭选择性和高的液化气收率。A novel structure zeolite Y （NSY） composite was modified by twice rear earth exchange and calcination.The crystal structure, surface area,pore volume, chemical compositions, thermal stability and hydrotherrnal stability of the modified samples were characterized by X-ray diffraction, X-ray fluorescence spectrometer, N2 adsorption, DTA and MAT techniques. Modified samples having various rear earth contents were used to prepared FCC catalysts, the catalytic performances of these catalysts were evaluated using fixed-fluidized bed （FFB） device.Test results showed that modified samples having higher rare earth content exhibited better residue cracking ability and higher light oil yield： modified samples having lower rare earth content exhibited better coke selectivity and higher LPG yield.

关 键 词：Y型分子筛 改性 催化裂化 

分 类 号：TE624.91[石油与天然气工程—油气加工工程]