Open AccessSyngas Production via CO2 Reforming of CH4 over Zr-Ni/SBA-15
Author(s) -
Noorlidah Abdullah,
Nurul Ainirazali,
H. Ellapan,
Hanif Razak,
Herma Dina Setiabudi
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/736/4/042021
Subject(s) - catalysis , syngas , zirconium , materials science , mesoporous material , nickel , dispersion (optics) , fourier transform infrared spectroscopy , adsorption , chemical engineering , bet theory , nuclear chemistry , yield (engineering) , specific surface area , metallurgy , chemistry , organic chemistry , physics , optics , engineering
In the present study, the effect of Zirconium (Zr) promoter (1-7wt %) on the properties of Ni/SBA-15 for syngas from CO 2 reforming of CH 4 were studied. Zr-Ni/SBA-15 catalyst was prepared using a one-pot sol-gel method. The physiochemical properties of Zr-Ni/SBA-15 catalysts were characterized using XRD, BET and FTIR. Meanwhile the performances of the catalysts were tested using a stainless steel fixed bed reactor at 800 °C, atmospheric pressure and CO 2 :CH 4 feed ratio of 1:1. The ordered mesoporous structure of SBA-15 support was proven by N 2 adsorption desorption isotherms. The surface area and pore volume of catalyst decreased with the increase of Zr loading as Zr and Ni particles occupied the SBA-15 frameworks and thus tended to expand the SBA-15 pore. ZrO 2 peak of 1Zr-Ni/SBA-15 was not detected in the XRD results indicating a good dispersion of the Zr species on the SBA-15 surface. The catalytic activity test revealed that the optimum Zr loading was 1 wt% with CH 4 conversion, CO 2 conversion and H 2 :CO ratios of 87.07%, 74.01%, and 0.42 respectively. This was due to the presence of the Zr species that promoted a better dispersion of Nickel (Ni) active sites on the SBA-15 surfaces as proven by the XRD and FTIR analysis. All catalysts maintained good catalytic activity up to 900 °C with less than 5 % weight loss as analyzed by TGA.