Work

Effect of Preparation Conditions on the Performance of CO Preferential Methanation Catalyst*

Year: 2012

Type: article

Abstract: CO preferential methanation catalysts were prepared by different methods for CO deep removal in reformat. The effects of Ru loading, impregnation times, calcination temperature and washing on the performance of catalyst were investigated in this paper. CO chemisorption was employed to character the catalyst. The optimal Ru loading is 0.8 wt.% for CO preferential catalyst. The active metal dispersion on catalyst could be increased when catalyst was impregnated for several times. Thus catalyst performance is improved in large degree. It is better for the catalyst calcined at low temperature than that in high temperature. Washing by de-ioned water could remove the residual Cl element after the catalyst calcined at certain temperature, which is helpful to increasing the activity of catalyst. For the CO deep removal in reformat, outlet CO content could reach below 10 ppm when inlet CO content is 0.1% with temperature breadth of 60 °C over Ru/Al2O3 catalyst. The catalyst is suitable for the CO deep removal in H2-rich reformat gas for PEMFC system.

Source: Physics Procedia

DOI: 10.1016/j.phpro.2012.03.234

Authors: Wanliang Mi, Qingquan Su, Jian Feng, Yin Dang

Institutions: University of Science and Technology Beijing, Sun Yat-sen University

Language: English

Topic: Catalysts for Methane Reforming

Subfield: Catalysis

Field: Chemical Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Climate action

Open Access status: diamond

Funders: National Natural Science Foundation of China, Fundamental Research Funds for the Central Universities