摘要
采用导向剂法在不同陈化温度下成功合成SAPO-11分子筛。利用XRD、N_2吸附-脱附等温曲线,BET物理吸附,NH3-TPD以及扫描电镜(SEM)等方法对分子筛的形貌,酸性质以及孔结构性质进行分析表征。以正十二烷为原料,考察Pt负载量为0. 5%的Pt/SAPO-11催化剂的异构化反应催化性能。结果表明:不同陈化温度影响催化剂的性能,陈化温度为120℃合成的SAPO-11分子筛具有最优性能,晶粒尺寸约为2μm,BET总比表面积为208. 8 m^2·g^(-1),正十二烷加氢异构化的异构烃收率最高达66. 7%。
SAPO-11 molecular sieves were successfully synthesized by the guidance agent method at different aging temperatures. The morphology, acid properties and pore structure of molecular sieve were characterized by physical adsorption of NH 3-TPD and scanning electron microscope (SEM). The hydroisomerization performance of Pt/SAPO-11 catalyst loaded with 0.5% chloroplatinic acid was investigated by using n-dodecane of long-chain alkanes as raw material. The results show that different aging temperatures affect the performance of the catalyst. When the aging temperature is 120 ℃, the SAPO-11 molecular sieve has the best performance, the grain size is about 2 μm BET total specific surface area is up to 208.8 m 2·g -1 , and the iso-hydrocarbon yield of dodecane hydroisomerization is up to 66.7%.
作者
吴海琳
孙娜
王海彦
吴晓娜
杨占旭
王钰佳
彭伊淇
WU Hai-lin;SUN Na;WANG Hai-yan;WU Xiao-na;YANG Zhan-xu;WANG Yu-jia;PENG Yi-qi(College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun 113001, China;College of Chemical Engineering, China University of Petroleum, Qingdao 266580, China)
出处
《人工晶体学报》
EI
CAS
北大核心
2019年第2期307-311,共5页
Journal of Synthetic Crystals
基金
国家自然科学基金(2016-Z0030)
关键词
SAPO-11分子筛
导向剂法
陈化温度
异构烃收率
SAPO-11 molecular sieve
guidance agent method
aging temperature
iso-hydrocarbon yield
作者简介
吴海琳(1993-),女,辽宁省人,硕士研究生;通讯作者:孙娜,讲师。
