Experimental and kinetic study of n-heptane isomerization on nanoporous Pt-(Re,Sn)/HZSM5-HMS catalysts

作     者：N.Parsafard M.H.Peyrovi M.Rashidzadeh N.Parsafard;M.H.Peyrovi;M.Rashidzadeh

作者机构：Faculty of Chemistry Department of Physical Chemistry University ofShahid Beheshti Tehran *** Iran Research Institute of Petroleum Industry （RIPI） Tehran *** Ira 

出 版 物：《Chinese Journal of Catalysis》 (催化学报（英文）)

年 卷 期：2016年第37卷第9期

页      面：1477-1486页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

主　　题：Bimetallic catalyst Trimetallic catalyst n-Heptane isomerization Selectivity Multibranched isomer 

摘      要：Pt-（Sn,Re）/HZSM5-HMS catalysts were evaluated for n-heptane isomerization at 200–350 ℃.To characterize the catalyst,X-ray diffraction,X-ray fluorescene,Fourier transform infrared spectroscopy,ultraviolet-visible diffuse reflectance spectroscopy,temperature-programmed reduction of H2,temperature-programmed desorption of NH3,infrared spectroscopy of adsorbed pyridine,H2 chemisorption,nitrogen adsorption-desorption,scanning electron microscopy and thermogravimetric analysis were *** of n-C7 isomerization were investigated under various hydrogen and n-C7 pressures,and the effects of reaction conditions on catalytic performance were *** results showed that bi-and trimetallic catalysts exhibit better performance than monometallic catalysts for this *** example,a maximum i-C7 selectivity（ 〉74%） and multibranched isomer selectivity（40%） were observed for Pt-Sn/HZSM5-HMS at 200 ℃.