Other language title :
ريفورمينگ نرمال هپتان كاتاليستهاي كامپوزيت پلاتين بهبود يافته: تهيه، شناسايي و اجراي كاتاليستي
Title of article :
Normal Heptane Reforming of Promoted Platinum Composite Catalysts: Preparation, Characterization and Catalytic Performance
Author/Authors :
Peyrovi, M. H. Department of Petroleum Chemistry and Catalysis - Faculty of Chemistry and Petroleum Sciences - University of Shahid Beheshti, Tehran, Iran , Parsafard, N. Department of Applied Chemistry - Faculty of Engineering and Basic Sciences - Kosar University of Bojnord, North Khorasan, Iran , Sajedi, A. Department of Petroleum Chemistry and Catalysis - Faculty of Chemistry and Petroleum Sciences - University of Shahid Beheshti, Tehran, Iran
Pages :
8
From page :
25
To page :
32
Abstract :
Pt/Zr(x)-HMS/HZSM-5 catalysts with different ratios of Silicium/Zirconium (denoted as x) were studied for normal heptane reforming at 350-450 °C temperature range. For this purpose, the properties of the catalysts such as X-ray diffraction, X-ray fluorescence, Fourier-transform infrared spectroscopy, Ultraviolet–visible diffuse reflectance spectroscopy, NH3-temperature programmed desorption, H2 chemisorption, N2 adsorption-desorption, and thermal gravimetric analysis were used. The results show that the produced Pt/Zr(x)-HMS/HZSM-5 catalysts have highly efficient performance for n-heptane reforming with a high isomers selectivity up to 69.4% (mono branched isomers = 31.8% and multi branched isomers = 37.6%) and a good selectivity to aromatic compounds (especially toluene = 6.9%), in spite of an appropriate selectivity to light products. It was revealed that the proper structure of these catalysts facilitates the reforming of n-heptane. According to these results, Pt/Zr(35)-HMS/HZSM-5 catalyst showed the favorable properties for this investigated catalytic process.
Keywords :
Normal Heptane reforming , Pt/Zr(x)-HMS/HZSM-5 , Isomers selectivity , Toluene
Journal title :
Journal of Sciences Islamic Republic of Iran
Serial Year :
2020
Record number :
2524241
Link To Document :
بازگشت