| Isothermal Kinetics Modelling of the Fischer-Tropsch Synthesis over the Spray-Dried Fe-Cu-K Catalyst |
| |
| 作者姓名： | Xiaohui Guo Ying Liu Jie Chang Liang Bai Yuanyuan Xu Hongwei Xiang Yongwang Li State Key Laboratory of Coal Conversion Institute of Coal Chemistry Chinese Academy of Sciences Taiyuan Shanxi China Graduate University of Chinese Academy of Sciences Beijing China |
| |
| 作者单位： | Xiaohui Guo，Ying Liu，Jie Chang，Liang Bai，Yuanyuan Xu，Hongwei Xiang，Yongwang Li State Key Laboratory of Coal Conversion，Institute of Coal Chemistry，Chinese Academy of Sciences，Taiyuan 030001，Shanxi，China;Graduate University of Chinese Academy of Sciences，Beijing 100039，China |
| |
| 基金项目： | 国家自然科学基金，高比容电子铝箔的研究开发与应用项目，山西省自然科学基金，国家自然科学基金 |
| |
| 摘 要： | The isothermal kinetics of the Fischer-Tropsch synthesis (FTS) over Fe-Cu-K spray-dried catalyst was studied in a spinning basket reactor. The experiments were carried out at a constant temperature of 523 K, n(H2)/n(CO) feed ratios of 0.8-2.0, reactor pressures of 1.1-2.5 MPa, and space velocity of 0.556×10-3 Nm3/kgcat·s. Kinetic model for hydrocarbon formation was derived on the basis of simplified carbide mechanism to reduce the number of parameters. Two individual rate constants for methane and ethene were considered. Furthermore, the model was modified empirically by non-intrinsic effect, such as physisorption and fictitious olefin pressures that were taken into account, and the influences of secondary reaction of α-olefins on product distribution. The simulation results showed that the experimental phenomena of FTS and the deviations from ASF distribution, such as the relatively high yield of methane and low yield of ethene observed experimentally could be depicted basically.
|
| 关 键 词： | Fischer-Tropsch合成 等温线动力学 喷射-干燥催化剂 铁 铜 钾 |
| 收稿时间： | 2005-11-23 |
| 修稿时间： | 2006-01-23 |
Isothermal Kinetics Modelling of the Fischer-Tropsch Synthesis over the Spray-Dried Fe-Cu-K Catalyst |
| |
| Xiaohui Guo,Ying Liu,Jie Chang,Liang Bai,Yuanyuan Xu,Hongwei Xiang,Yongwang Li State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan ,Shanxi,China,Graduate University of Chinese Academy of Sciences,Beijing ,China.Isothermal Kinetics Modelling of the Fischer-Tropsch Synthesis over the Spray-Dried Fe-Cu-K Catalyst[J].Journal of Natural Gas Chemistry,2006,15(2):105-114. |
| |
| Authors: | Xiaohui Guo Ying Liu Jie Chang Liang Bai Yuanyuan Xu Hongwei Xiang Yongwang Li |
| |
| Institution: | aState Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, Shanxi, China;bGraduate University of Chinese Academy of Sciences, Beijing 100039, China |
| |
| Abstract: | The isothermal kinetics of the Fischer-Tropsch synthesis (FTS) over Fe-Cu-K spray-dried catalyst was studied in a spinning basket reactor. The experiments were carried out at a constant temperature of 523 K, n(H2)/n(CO) feed ratios of 0.8-2.0, reactor pressures of 1.1-2.5 MPa, and space velocity of 0.556× 10-3 Nm3/kgcat.s. Kinetic model for hydrocarbon formation was derived on the basis of simplified carbide mechanism to reduce the number of parameters. Two individual rate constants for methane and ethene were considered. Furthermore, the model was modified empirically by non-intrinsic effect, such as physisorption and fictitious olefin pressures that were taken into account, and the influences of secondary reaction of α-olefins on product distribution. The simulation results showed that the experimental phenomena of FTS and the deviations from ASF distribution, such as the relatively high yield of methane and low yield of ethene observed experimentally could be depicted basically. |
| |
| Keywords: | Fischer-Tropsch synthesis isothermal kinetics non-intrinsic effect spray-dried catalyst iron copper kalium |
| 本文献已被 CNKI 万方数据 ScienceDirect 等数据库收录！ |
| 点击此处可从《天然气化学杂志》浏览原始摘要信息 |
| 点击此处可从《天然气化学杂志》下载免费的PDF全文 |
