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预处理温度对SAPO-11催化丁烯骨架异构化性能的影响
引用本文:李秀铭,廖克俭,佟明友,朱金剑.预处理温度对SAPO-11催化丁烯骨架异构化性能的影响[J].工业催化,2012,20(1):24-27.
作者姓名:李秀铭  廖克俭  佟明友  朱金剑
作者单位:1.辽宁石油化工大学石油化工学院,辽宁 抚顺 113001;2.中国石化抚顺石油化工研究院,辽宁 抚顺 113001
基金项目:中国石化企业委托开发项目(210038)
摘    要:采用水热合成法合成的SAPO-11分子筛,经酸洗、干燥和焙烧处理得H-SAPO-11分子筛,考察了预处理温度对催化剂物化性能的影响,采用XRD、XRF、IR和NH3-TPD等手段对催化剂进行表征。实验证明,500 ℃预处理后H-SAPO-11分子筛的结构缺陷较少,B酸位较多,骨架更完美;将其成型制成催化剂,对丁烯骨架异构化反应显示更优良的催化活性、选择性和稳定性。

关 键 词:催化剂工程  SAPO-11分子筛  H-SAPO-11分子筛  预处理温度  丁烯骨架异构化  

Effect of pretreatment temperature on the performance of SAPO-11 catalyst for the skeletal isomerization of n-butene
LI Xiuming , LIAO Kejian , TONG Mingyou , ZHU Jinjian.Effect of pretreatment temperature on the performance of SAPO-11 catalyst for the skeletal isomerization of n-butene[J].Industrial Catalysis,2012,20(1):24-27.
Authors:LI Xiuming  LIAO Kejian  TONG Mingyou  ZHU Jinjian
Affiliation:1.School of Petrochemical Engineering, Liaoning Shihua University, Fushun 113001, Liaoning, China; 2.Sinopec Fushun Research Institute of Petroleum and Petrochemicals, Fushun 113001, Liaoning, China
Abstract:SAPO-11 molecular sieve was synthesized by hydrothermal method. H-SAPO-11 molecular sieve was prepared by oxalic acid washing, dryness and calcination. The influence of pretreatment temper- ature on the physieochemical properties of the catalyst was investigated. The catalyst was characterized by XRD, XRF, IR and NH3-TPD. The results indicated that H-SAPO-11 molecular sieve pretreated at 500 ℃ had higher crystallinity and more Brtonsted acid sites, and exhibited better catalytic activity, selectivity and stability for the skeletal isomerization reaction of n-butene.
Keywords:catalyst engineering  SAP0-11 molecular sieve  H-SAP0-11 molecular sieve  pretreatmenttemperature  butene skeletal isomerization
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