Detailed Information

Cited 0 time in webofscience Cited 0 time in scopus
Metadata Downloads

Effects of La2O3 on ZrO2 supported Ni catalysts for autothermal reforming of CH4

Authors
Park, Sun HeeChun, Byung-HeeKim, Sung Hyun
Issue Date
2월-2011
Publisher
KOREAN INSTITUTE CHEMICAL ENGINEERS
Keywords
Methane; Reforming; Autothermal; Lanthanum; Zirconium Oxide; Nickel Catalyst
Citation
KOREAN JOURNAL OF CHEMICAL ENGINEERING, v.28, no.2, pp.402 - 408
Indexed
SCIE
SCOPUS
KCI
Journal Title
KOREAN JOURNAL OF CHEMICAL ENGINEERING
Volume
28
Number
2
Start Page
402
End Page
408
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/113182
DOI
10.1007/s11814-010-0356-7
ISSN
0256-1115
Abstract
The effect of La2O3 content in Ni-La-Zr catalyst was investigated for the autothermal reforming (ATR) of CH4. The catalysts were prepared by the coprecipitation method and had a mesoporous structure. Temperature programmed reduction (TPR) and X-ray photoelectron spectroscopy (XPS) indicated that a strong interaction developed between Ni species and the support with the addition of La2O3. Thermogravitnetric analysis (TGA) and H-2-pulse chemisorption showed that the addition of La2O3 led to well dispersed NiO molecules on the support. Ni-La-Zr catalysts gave much higher CH4 conversion than Ni-Zr catalyst. The Ni-La-Zr containing 3.2 wt% La2O3 showed the highest activity. The optimum conditions for maximal CH4 conversion and H-2 yield were H2O/CH4=1.00, O-2/CH4=0.75. Under these conditions, CH4 conversion of 83% was achieved at 700 degrees C. In excess O-2 (O-2/CH4>0.88), the catalytic activity was decreased due to sintering of the catalyst.
Files in This Item
There are no files associated with this item.
Appears in
Collections
College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles

qrcode

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

Altmetrics

Total Views & Downloads

BROWSE