气相化学法制备高硅铝比Y型沸石性能考宣传察  

STUDY ON PROPERTIES OF HIGH-SILICA Y ZEOLITE PREPARED BY VAPOR PHASE SiCI_4 CHEMICAL TREATMENT

作　　者：杜军[1] 王世珍[1] 孙殿卿[1] 彭朴[1] 李才英[1] 

机构地区：[1]石油化工科学研究院

出　　处：《石油炼制与化工》1995年第3期30-35,共6页Petroleum Processing and Petrochemicals

摘　　要：本研究以氮吸附、分析电镜（ＡＥＭ）、光电子能谱（ＥＳＣＡ）、固体核磁２９ＳｉＭＡＳＮＭＲ、２７ＡＩＭＡＳＮＭＲ及傅里叶红外（ＦＴ－ＩＲ）考察了用ＳｉＣｌ４气相化学法制备的高硅铝比Ｙ型沸石的吸附性能、孔结构、脱铝均匀性、硅铝分布及酸性，并对其催化剂进行了初步评价。结果表明，气相化学法可制备出晶胞参数变化范围宽、结晶保留度高的高硅铝比Ｙ型沸石，其骨架外铝以及二次孔均可调节。该沸石具有好的热稳定性和水热稳定性及良好的活性水平，适宜于作渣油催化裂化及提高汽油辛烷值的催化裂化催化剂的活性组元。This study focused on characterization of high-silica Y zeolites prepared by SiCI4 treatment. Nitrogen adsorption,AEM,ESCA,29Si MAS NMR,27AI MAS NMR and FT-IR were need for physico-chemical analysis to investigate the adsorption properties, pore structure, the homogeneous of dealumination, distribution of silicon or aluminum and the acidity of the high-silica Y zeolite. Catalysts using high-silica Y zeolite as active component have been evaluated. The test results show that high-silica Y zeolites with wide range unit cell size and high relative crystallinity retention (%) can be prepared by SiCI4 treatment. Besides, the content of non-framework alumina and mesopore can be adjusted. This type of zeolites has good thermal and hydrothermal stability and activity. Therefore, it might be suitable as active component of resid cracking catalysts and high octane catalysts.

关 键 词：制备 硅铝比 气相化学法 沸石 Y型沸石 

分 类 号：TQ424.25[化学工程]