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Catalytically active and hierarchically porous SAPO-11 zeolite synthesized in the presence of polyhexamethylene biguanidine
Liu, Yan1,4; Qu, Wei2; Chang, Weiwei1; Pan, Shuxiang1; Tian, Zhijian2; Meng, Xiangju1; Rigutto, Marcello3; van der Made, Alexander3; Zhao, Lan5; Zheng, Xiaoming1; Xiao, Feng-Shou1
关键词Hierarchical Zeolite Sapo-11 Supported Platinum Catalyst Hydroisomerization N-dodecane
刊名JOURNAL OF COLLOID AND INTERFACE SCIENCE
2014-03-15
DOI10.1016/j.jcis.2013.11.065
418页:193-199
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Physical
研究领域[WOS]Chemistry
关键词[WOS]SILICOALUMINOPHOSPHATE MOLECULAR-SIEVES ; SOLID-STATE NMR ; CHAIN NORMAL-PARAFFINS ; MTO-REACTION ; INTRACRYSTAL MESOPORES ; TEMPLATED SYNTHESIS ; DIRECTED SYNTHESIS ; SHAPE SELECTIVITY ; MFI ZEOLITE ; HYDROISOMERIZATION
英文摘要Hierarchically porous SAPO-11 zeolite (H-SAPO-11) is rationally synthesized from a starting silicoaluminophosphate gel in the presence of polyhexamethylene biguanidine as a mesoscale template. The sample is well characterized by XRD, N-2 sorption, SEM, TEM, NMR, XPS, NH3-TPD, and TG techniques. The results show that the sample obtained has good crystallinity, hierarchical porosity (mesopores at ca. 10 nm and macropores at ca. 50-200 nm), high BET surface area (226 m(2)/g), large pore volume (0.25 cm(3)/g), and abundant medium and strong acidic sites (0.36 mmol/g). After loading Pt (0.5 wt.%) on H-SAPO-11 by using wet impregnation method, catalytic hydroisomerization tests of n-dodecane show that the hierarchical Pt/SAPO-11 zeolite exhibits high conversion of n-dodecane and enhanced selectivity for branched products as well as reduced selectivity for cracking products, compared with conventional Pt/SAPO-11 zeolite. This phenomenon is reasonably attributed to the presence of hierarchical porosity, which is favorable for access of reactants on catalytically active sites. The improvement in catalytic performance in long-chain paraffin hydroisomerization over Pt/SAPO-11-based catalyst is of great importance for its industrial applications in the future. (C) 2013 Elsevier Inc. All rights reserved.
语种英语
WOS记录号WOS:000330748700025
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/143173
专题中国科学院大连化学物理研究所
作者单位1.Zhejiang Univ, Dept Chem, Key Lab Appl Chem Zhejiang Prov, Hangzhou 310028, Zhejiang, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Shell Technol Ctr Amsterdam, NL-1031 HW Amsterdam, Netherlands
4.E China Inst Technol, Dept Chem Engn & Technol, Nanchang 330013, Peoples R China
5.King Abdullah Univ Sci & Technol, Adv Membranes & Porous Mat Ctr, Chem & Life Sci & Engn Div, Thuwal 29556900, Saudi Arabia
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GB/T 7714
Liu, Yan,Qu, Wei,Chang, Weiwei,et al. Catalytically active and hierarchically porous SAPO-11 zeolite synthesized in the presence of polyhexamethylene biguanidine[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2014,418:193-199.
APA Liu, Yan.,Qu, Wei.,Chang, Weiwei.,Pan, Shuxiang.,Tian, Zhijian.,...&Xiao, Feng-Shou.(2014).Catalytically active and hierarchically porous SAPO-11 zeolite synthesized in the presence of polyhexamethylene biguanidine.JOURNAL OF COLLOID AND INTERFACE SCIENCE,418,193-199.
MLA Liu, Yan,et al."Catalytically active and hierarchically porous SAPO-11 zeolite synthesized in the presence of polyhexamethylene biguanidine".JOURNAL OF COLLOID AND INTERFACE SCIENCE 418(2014):193-199.
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