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题名: Hydroisomerization performance of platinum supported on ZSM-22/ZSM-23 intergrowth zeolite catalyst
作者: Chi Kebin1, 2;  Zhao Zhen1;  Tian Zhijian3;  Hu Sheng2;  Yan Lijun2;  Li Tianshu1;  Wang Bingchun3;  Meng Xiangbin2;  Gao Shanbin2;  Tan Mingwei2;  Liu Yanfeng2
关键词: ZSM-22/ZSM-23 intergrowth zeolite ;  platinum catalyst ;  n-dodecane ;  hydroisomerization
刊名: PETROLEUM SCIENCE
发表日期: 2013-06-01
DOI: 10.1007/s12182-013-0273-6
卷: 10, 期:2, 页:242-250
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Energy & Fuels ;  Engineering, Petroleum
研究领域[WOS]: Energy & Fuels ;  Engineering
英文摘要: Hydroisomerization catalysts Pt/ZSM-22, Pt/ZSM-23, and Pt/ZSM-22/ZSM-23 were prepared by supporting Pt on ZSM-22, ZSM-23, and intergrowth zeolite ZSM-22/ZSM-23, respectively. The typical physicochemical properties of these catalysts were characterized by X-Ray Diffraction (XRD), N2 absorption-desorption, Pyridine-Fourier Transform Infrared (Py-FTIR), Transmission Electron Microscopy (TEM), X-Ray Fluorescence (XRF), Scanning Electron Microscopy (SEM) and NH3-Temperature Programmed Desorption (NH3-TPD), and the performance of these catalysts in n-dodecane hydroisomerization was evaluated in a continuous down-flow fixed bed with a stainless steel tubular reactor. The characterization results indicated that the intergrowth zeolite ZSM-22/ZSM-23 possessed the dual structure of ZSM-22 and ZSM-23, and the catalyst Pt/ZSM-22/ZSM-23 had similar pores and weak acidity to Pt/ZSM-22 and Pt/ZSM-23 catalysts. Moreover, Pt/ZSM-22/ZSM-23 catalyst showed a high selectivity in hydroisomerization of long chain n-alkanes to mono-branched isomers. The evaluation results for n-dodecane hydroisomerization indicated that the activity of Pt/ZSM-22/ZSM-23 was the lowest, while the hydroisomerization selectivity was the highest among the three catalysts. The maximum yield of i-dodecane product was 68.3% over Pt/ZSM-22/ZSM-23 at 320 A degrees c.
关键词[WOS]: N-HEXADECANE HYDROISOMERIZATION ;  HIGH-SILICA ZEOLITE ;  PT/SAPO-11 CATALYST ;  FRAMEWORK TOPOLOGY ;  MOLECULAR-SIEVES ;  HYDROCRACKING ;  BALANCE ;  ALKANES ;  HEPTANE ;  ACID
语种: 英语
WOS记录号: WOS:000319074500013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137764
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
2.PetroChina Co Ltd, Petrochem Res Inst, Beijing 100195, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Chi Kebin,Zhao Zhen,Tian Zhijian,et al. Hydroisomerization performance of platinum supported on ZSM-22/ZSM-23 intergrowth zeolite catalyst[J]. PETROLEUM SCIENCE,2013,10(2):242-250.
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