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Improving thermal diffusivity of supported Fe-based Fischer–Tropsch catalysts to enhance long-chain hydrocarbon production
Reaction Chemistry & Engineering ( IF 3.4 ) Pub Date : 2021-4-17 , DOI: 10.1039/d1re00057h Chuang Xing 1, 2, 3, 4, 5 , Mingquan Li 3, 6, 7, 8 , Yajie Fu 3, 6, 7, 8 , Xiaobing Chen 1, 2, 3 , Peng Lu 3, 6, 7, 8 , Xiaotian Li 1, 2, 3 , Cederick Cyril Amoo 3, 6, 7, 8, 9
Reaction Chemistry & Engineering ( IF 3.4 ) Pub Date : 2021-4-17 , DOI: 10.1039/d1re00057h Chuang Xing 1, 2, 3, 4, 5 , Mingquan Li 3, 6, 7, 8 , Yajie Fu 3, 6, 7, 8 , Xiaobing Chen 1, 2, 3 , Peng Lu 3, 6, 7, 8 , Xiaotian Li 1, 2, 3 , Cederick Cyril Amoo 3, 6, 7, 8, 9
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Hydrocarbon fuels and other high-valued chemicals traditionally obtained from petroleum can be produced via the green and sustainable Fischer–Tropsch synthesis (FTS). However, the FTS reaction is highly exothermic which is suggested to have adverse effects on the overall performance of the catalysts. In this work, the effects of improved thermal diffusivity of the catalysts on FTS performance were investigated using pulverized aluminum (Al) mixed with SiO2 supported Fe catalysts. The Al content was varied and subsequent influence on the catalyst and product distribution was highlighted. By design, it was observed that the addition of Al barely influenced the intrinsic physicochemical properties of the basic Fe catalyst. However, it increases the thermal diffusivity of the catalyst which corresponded to an increased selectivity for long-chain hydrocarbons. These results directly clarify the influence of thermal diffusivity on catalytic activity and reveal a plausible path to efficiently reduce its impact on the FTS reaction.
中文翻译：
改善负载型铁基费-托催化剂的热扩散率，以提高长链烃的产量
传统上可以从石油中获得的碳氢燃料和其他高价值化学品，可以通过绿色和可持续的费-托合成法（FTS）生产。然而，FTS反应是高度放热的，这表明对催化剂的整体性能具有不利影响。在这项工作中，使用粉状铝（Al）与SiO 2混合，研究了催化剂的热扩散率提高对FTS性能的影响。负载铁催化剂。Al含量变化并且突出了对催化剂和产物分布的后续影响。通过设计，观察到Al的添加几乎不影响碱性Fe催化剂的固有物理化学性质。然而，它增加了催化剂的热扩散率，这对应于对长链烃的增加的选择性。这些结果直接阐明了热扩散率对催化活性的影响，并揭示了有效减少其对FTS反应影响的合理途径。
更新日期：2021-05-04
中文翻译：
改善负载型铁基费-托催化剂的热扩散率，以提高长链烃的产量
传统上可以从石油中获得的碳氢燃料和其他高价值化学品，可以通过绿色和可持续的费-托合成法（FTS）生产。然而，FTS反应是高度放热的，这表明对催化剂的整体性能具有不利影响。在这项工作中，使用粉状铝（Al）与SiO 2混合，研究了催化剂的热扩散率提高对FTS性能的影响。负载铁催化剂。Al含量变化并且突出了对催化剂和产物分布的后续影响。通过设计，观察到Al的添加几乎不影响碱性Fe催化剂的固有物理化学性质。然而，它增加了催化剂的热扩散率，这对应于对长链烃的增加的选择性。这些结果直接阐明了热扩散率对催化活性的影响，并揭示了有效减少其对FTS反应影响的合理途径。
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