主办单位：煤炭科学研究总院有限公司、中国煤炭学会学术期刊工作委员会
Table1
表 1 Physiochemical properties of various catalysts
| Catalyst | Phase contentsa/% | Nib/% | Nic/nm | Nid/nm | |
| anatase | rutile | ||||
| Ni/TiO2-700 | 100 | 0 | 5.27 | 15.0 | 13.3 |
| Ni/TiO2-850 | 82.6 | 17.4 | 5.14 | 12.7 | 13.7 |
| Ni/TiO2-900 | 14.1 | 85.9 | 5.12 | 13.4 | 14.4 |
| Ni/TiO2-950 | 0 | 100 | 5.14 | 13.9 | 13.9 |
| a: The phase content of TiO2-t was estimated from XRD; b: The Ni loading measured by XRF; c: The Ni crystal sizes after reduction were calculated from XRD; d: The Ni crystal sizes after reduction were calculated from TEM. | |||||
Table2
表 2 Catalytic performance of the catalysts
| Catalyst | Conv./% | \(s_{{\mathrm{CH}}_4} \)/% | \(s_{{\mathrm{C}}_2-{\mathrm{C}}_4} \)/% | \(s_{{\mathrm{C}}_{5+}} \)/% |
| Co-SiC | 55.3 | 14.0 | 11.0 | 75.0 |
| Co -SiC-Zr-2 | 47.8 | 12.0 | 11.0 | 77.0 |
| Co -SiC-Zr -5 | 55.7 | 10.3 | 9.2 | 80.5 |
| Co -SiC-Zr-10 | 55.4 | 10.0 | 9.1 | 80.9 |
| Reaction conditions: 2.0 MPa, 220 °C, H2/CO=2. | ||||
Table1
表 1 Physicochemical properties of the catalysts
| Catalyst | BET area/ (m2·g−1) | Pore diameter/nm | Total pore volume/(cm3·g−1) | Crystallite size of Co3O4a/nm | Reduction degreeb/% | Ratio of measured Co to actual Co contentb |
| Co-SiC | 31.1 | 21.4 | 0.166 | 24.6 | 50.2 | 0.96 |
| Co -SiC-Zr -2 | 31.2 | 24.1 | 0.189 | 25.9 | 78.8 | 1.33 |
| Co -SiC-Zr -5 | 29.2 | 21.6. | 0.148 | 23.8 | 81.5 | 1.45 |
| Co-SiC-Zr -10 | 33.6 | 23.2 | 0.195 | 25.9 | 86.9 | 1.51 |
| a: Average diameter of particle size calculated from the XRD; b: Determined from the TPR. | ||||||
主办单位：煤炭科学研究总院有限公司 中国煤炭学会学术期刊工作委员会
