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Comparing a cobalt-based catalyst with iron-based catalysts for the Fischer-Tropsch XTL-process operating at high conversion
Applied Catalysis A: General ( IF 5.5 ) Pub Date : 2017-09-19 , DOI: 10.1016/j.apcata.2017.09.019
E. van Steen , M. Claeys , K.P. Möller , D. Nabaho

The XTL-process is a capital-intensive process. Novel process configurations need to be explored to increase the economic viability of this process. This is typically performed using the known dependencies of the catalyst as a function of the targeted process conditions. However, new process conditions may require catalysts with different characteristics compared to those currently utilised. Here, a set of cobalt- and iron-based Fischer-Tropsch catalysts are evaluated for their suitability in the application of a single-pass XTL-process operating at high conversion of synthesis gas. It is shown that cobalt-based catalysts of a suitable activity may be preferred over iron-based catalysts. The higher selectivity for methane for cobalt-based catalysts is offset by a lower selectivity for C2-C4 resulting in a favourable C5+-selectivity.



中文翻译:

将钴基催化剂与铁基催化剂用于高转化率费-托XTL工艺的比较

XTL流程是一个资本密集型流程。需要探索新颖的工艺配置以增加该工艺的经济可行性。这通常根据目标工艺条件使用已知的催化剂依赖性进行。但是,新的工艺条件可能需要与当前使用的催化剂相比具有不同特性的催化剂。在此,对一组钴铁基费托催化剂在适用于合成气高转化率的单程XTL工艺应用中的适用性进行了评估。结果表明,具有合适活性的钴基催化剂可能优于铁基催化剂。钴基催化剂对甲烷的较高选择性被C 2 -C 4的较低选择性所抵消产生有利的C 5+选择性。

更新日期:2017-09-19
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