Title of article :
Optimization of the preparation procedure of Ni/Al2O3 catalyst for steam reforming of n-butane
Author/Authors :
Saydi, Davood Faculty of Chemistry and Chemical Engineering - Malek Ashtar University of Technology - Lavizan, Tehran , Ziarati, Mahmoud Faculty of Chemistry and Chemical Engineering - Malek Ashtar University of Technology - Lavizan, Tehran , Khandan, Nahid Department of Chemical Technologies - Iranian Research Organization for Science & Technology (IROST), P.O. Box 3353111, Tehran , Zaherian, Amir Ali Department of Chemical and Petroleum Engineering - Sharif University of Technology - Azadi Ave - P.O. Box 11365-9465, Tehran
Abstract :
Performance of Ni/Al2O3 catalysts (10 wt.% Ni) in steam reforming of n-butane was
investigated in terms of n-butane conversion, selectivity to hydrogen, and hydrogen
yield. The catalysts were prepared by the precipitation-sedimentation method at
different precipitation, drying and calcination temperatures as well as precursors.
Synthesized catalysts were characterized by scanning electron microscopy (SEM),
X-ray diffraction (XRD) and BET analyses. Mathematical predictive formulas were
generated for responses by Design Expert software. Also, the optimum condition of
the catalyst preparation was obtained by using the response surface methodology
(RSM). Ultimately, it was concluded that Ni- Nitrate as the precursor was the most
favorable and the overall optimum condition were: Tprecipitation= 30°C, Tdrying= 115°C,
and Tcalcination= 700°C .
Keywords :
Ni/Al2O3 , n-butane , Optimization , Steam reforming , Nano-sized catalyst
Journal title :
Astroparticle Physics
