Open AccessSyngas production through methane oxy‐steam reforming over a Ni/SiO 2 nanocatalyst prepared by a modified impregnation method
Author(s) -
Hosseini Seyed Mohammad Sadegh,
Hashemipour Hassan,
Talebizadeh Alireza
Publication year - 2016
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2016.0380
Subject(s) - syngas , catalysis , physisorption , methane , oleylamine , materials science , chemical engineering , fourier transform infrared spectroscopy , steam reforming , yield (engineering) , methane reformer , inorganic chemistry , nuclear chemistry , chemistry , hydrogen production , nanotechnology , metallurgy , organic chemistry , nanoparticle , engineering
Synthesis gas can be converted into a number of important energy carriers and fuels and it is playing a growing role in the energy sector. In this work oxy‐steam reforming of methane was performed over a modified 5%Ni/SiO 2 catalyst in a fixed bed reactor at atmospheric pressure with the aim of producing syngas with high yield. The modified catalyst was synthesised by oleylamine‐assisted impregnation method and characterised by X‐ray diffraction, Fourier‐transformed infrared spectroscopy, N 2 physisorption measurement, temperature‐programmed H 2 reduction and transmission electron microscopy. For the comparative study, an unmodified 5%Ni/SiO 2 catalyst was also prepared by conventional impregnation method. The reaction test results demonstrated that the value of methane conversion and the yield of syngas over the modified catalyst were almost 2 and 2.5 times more than ones over the unmodified catalyst. During the 10 h stability test, catalytic activity of the modified catalyst remained at high and constant values (92.5%) while the unmodified catalyst was rapidly deactivated during the stability test. The effective catalytic performance of the modified catalyst was related to the nanosize nickel species that interacted with the silica support strongly.