Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
152766 | Chemical Engineering Journal | 2008 | 5 Pages |
Abstract
Steam reforming of methane was studied over gadolinia-doped ceria (GDC) supported Ni catalysts. Ni content varied from 1 to 10 wt% and molar ratio of H2O to CH4 was 2 in feed. A Ni content of about 5 wt% leads to highest formation rates of both hydrogen and CO2. Over 1 wt% Ni/GDC catalyst at 700 °C, the hydrogen yield equals almost 4 for complete CO2 formation. Increasing Ni content leads to decreasing hydrogen yield. A Ni content of about 5 wt% or lower is beneficial for high CO2 selectivity and low carbon deposition associated with high methane conversion. Increased Ni content results in larger Ni particle size and increased carbon deposition.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Ta-Jen Huang, Meng-Chin Huang,