DICP OpenIR
Effect of silanization on catalytic performance of Pt/SAPO-11 for hydroisomerization of n-dodecane
Wang, ZM; Tian, ZJ; Teng, F; Xu, YP; Hu, S; Tan, MW; Xu, ZS; Lin, LW
关键词Silanization Platinum Sapo-11 Zeolite N-dodecane Hydroisomerization Selectivity
刊名CHINESE JOURNAL OF CATALYSIS
2005-09-01
26期:9页:819-823
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]ZEOLITE CATALYSTS ; HYDROCONVERSION ; SORPTION ; ALKANES ; DECANE ; ACID
英文摘要The effect of silanization of SAPO-11 on the hydroisomerization of n-dodecane over Pt/SAPO-11 catalysts was studied. The SAPO-11 support was silanized by the chemical liquid deposition with tetraethoxysilane or tetrachlorosilicane. The Pt/SAPO-11 catalysts were characterized by X-ray diffraction, N-2 adsorption, NH3-temperature-programmed desorption (TPD) and hydrocracking of 2,2,4-trimethylpentane. N-2 adsorption and NH3-TPD results show that the micropore volume and the acidity of the catalysts are reduced after silanization, and the reaction rates of 2,2,4-trimethylpetane hydrocracking over the catalysts are also reduced. This indicates that the acidic sites on the external surface of SAPO-11 are selectively deactivated by silanization. The selectivity for monobranched isomers over Pt/SAPO-11 is enhanced by silanization, which is ascribed to the shrink of pore mouths of SAPO-11 after silanization. Moreover, the total hydroisomerization selectivity decreases after silanization. Due to the shrink of pore mouths of the silanized catalysts, diffusion limitation to branched products might increase, leading to severe hydrocracking reactions in micropores of the catalysts.
语种英语
WOS记录号WOS:000232474800020
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/139789
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Nat Gas Utilizat & Appl Catalysis, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Res Inst Daqing Petrochem Co, Heilongjiang 163714, Peoples R China
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Wang, ZM,Tian, ZJ,Teng, F,et al. Effect of silanization on catalytic performance of Pt/SAPO-11 for hydroisomerization of n-dodecane[J]. CHINESE JOURNAL OF CATALYSIS,2005,26(9):819-823.
APA Wang, ZM.,Tian, ZJ.,Teng, F.,Xu, YP.,Hu, S.,...&Lin, LW.(2005).Effect of silanization on catalytic performance of Pt/SAPO-11 for hydroisomerization of n-dodecane.CHINESE JOURNAL OF CATALYSIS,26(9),819-823.
MLA Wang, ZM,et al."Effect of silanization on catalytic performance of Pt/SAPO-11 for hydroisomerization of n-dodecane".CHINESE JOURNAL OF CATALYSIS 26.9(2005):819-823.
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