Effects of polyvinyl-pyrrolidone in a polyol method on preparaion of a perovskite-type catalyst for steam-CO2 reforming of methane

Title
Effects of polyvinyl-pyrrolidone in a polyol method on preparaion of a perovskite-type catalyst for steam-CO2 reforming of methane
Authors
박대일문동주김태규
Keywords
Steam-CO2 reforming; Polyol method; Perovskite-type catalyst; Hydrogen; GTL-FPSO
Issue Date
2015-01
Publisher
International journal of hydrogen energy
Citation
VOL 40, 1481-1489
Abstract
A La0.8Sr0.2NiO3 perovskite-type catalyst was investigated to develop a stable catalyst for methane steam-CO2 reforming (SCR) in a gas to liquid-floating production storage and offloading process. The perovskite-type catalyst, supported on a-Al2O3, was prepared by a polyol method. The effect of the concentration of polyvinyl-pyrrolidone (PVP) on its reducibility, structural properties, and prevention of carbon deposition was characterized by X-ray diffraction (XRD), H2-temperature programmed reduction (H2-TPR), Fourier transform infrared spectrometry (FT-IR), scanning electron microscope (SEM), and thermogravimetric analysis (TGA). We also conducted methane SCR using the catalysts. At 1 M PVP, the perovskite structure was established completely without impurities; thus, it demonstrated the highest catalytic activity, 73.3% and 46.9% for CH4 and CO2 conversions, respectively. After the reaction, the weight fraction of carbon deposition on the perovskite catalyst was 0.3e0.4% and 1.9% on the Ni catalyst, which indicates that the perovskite-type catalyst superiorly suppresses carbon deposition during methane SCR.
URI
http://pubs.kist.re.kr/handle/201004/49719
ISSN
03603199
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE