CO₂ hydrogenation into C₂₊-hydrocarbons is an attractive way to mitigate the green-house effect and provides new opportunities to produce valuable chemicals from the longer available raw material. The present manuscript introduces and experimentally validates a mathematical approach for identifying fundamentals affecting catalyst performance to provide guidelines for tailored catalyst design or for reactor operation. Literature data were analyzed by regression trees, ANOVA, and comparison of mean values.

The Pauling electronegativity of dopant for Fe₂O₃ can be used as a descriptor for CO₂ conversion and CH₄ selectivity. In addition, combining alkali and transition metals as promoters for Fe₂O₃ is a promising route to enhance C₂₊-hydrocarbons selectivity and the ratio of olefins to paraffins. So-developed Mn-K/Fe₂O₃ catalyst (K/Fe of 0.005 and Mn/K of 0.4) hydrogenated CO₂ to C₂-C₄ olefins at 300 °C with the selectivity of 30.4 % at CO₂ conversion of 42.3 %. The selectivity to C₂₊-hydrocarbons (C₂-C₄ olefins are included) was 83.1 %.

CO ₂加氢成C _{2 +} -碳氢化合物是减轻温室效应的一种有吸引力的方法，并且为从较长的可用原料生产有价值的化学品提供了新的机会。本手稿介绍并通过实验验证了一种数学方法，用于识别影响催化剂性能的基本原理，从而为定制的催化剂设计或反应器操作提供指导。通过回归树，方差分析和均值比较分析文献数据。

掺杂剂对Fe ₂ O ₃的鲍林电负性可以用作描述CO ₂转化率和CH ₄选择性的指标。另外，结合碱金属和过渡金属作为Fe ₂ O _3的促进剂是增加C 2 ₊ -烃选择性和烯烃与链烷烃之比的有前途的途径。如此开发的Mn-K / Fe ₂ O ₃催化剂（K / Fe为0.005，Mn / K为0.4）在300°C下将CO ₂氢化为C ₂ -C ₄烯烃，CO ₂转化率为30.4％。 42.3％。对C ₂₊的选择性-烃（包括C ₂ -C ₄烯烃）为83.1％。