Catalytic upgrading of oil products generated by retorting Dachengzi oil shale over different catalysts

IF 3 3区工程技术 Q2 CHEMISTRY, ANALYTICAL Journal of Thermal Analysis and Calorimetry Pub Date : 2024-12-26 DOI:10.1007/s10973-024-13908-9

Sha Wang, Jinbiao Yan, Bin Hu, Huarong Zhang, Lipei Qiu, Jun Shen, Bin Chen, Xiumin Jiang, Yun Guo, Cong Shi, Xiang Ge

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Abstract

Dachengzi oil shale samples were retorted over Fe₂O₃ and CaCO₃ in a small reactor to evaluate their catalytic effects on oil yield and quality. The results indicated two catalysts enhanced kerogen reactivity and secondary reactions of pyrolysis products, which slightly improved the shale oil yield but significantly upgraded pyrolysis volatiles. Adding catalysts facilitated the cracking reactions of heteroatomic compounds, increased the selectivity of aromatic hydrocarbons and promoted olefin aromatization. Fe₂O₃ produced shale oil with lower 1-olefins, aromatics, N and S contents, which more obviously catalyzed kerogen decomposition to improve the heavy fractions and asphaltenes. The total n-paraffins content was about twice that of total 1-olefins in the derived shale oils which mainly contained bicyclic and tricyclic aromatic compounds. Using catalysts increased the total n-paraffins content and PACs with high ring numbers. Catalytic cracking of naphthalenes more easily occurred over Fe₂O₃. Fe₂O₃ was more favorable to obtain high shale oil yield and quality than CaCO₃.

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来源期刊

Journal of Thermal Analysis and Calorimetry 化学-分析化学

CiteScore

8.50

自引率

9.10%

发文量

577

审稿时长

3.8 months

期刊介绍： Journal of Thermal Analysis and Calorimetry is a fully peer reviewed journal publishing high quality papers covering all aspects of thermal analysis, calorimetry, and experimental thermodynamics. The journal publishes regular and special issues in twelve issues every year. The following types of papers are published: Original Research Papers, Short Communications, Reviews, Modern Instruments, Events and Book reviews. The subjects covered are: thermogravimetry, derivative thermogravimetry, differential thermal analysis, thermodilatometry, differential scanning calorimetry of all types, non-scanning calorimetry of all types, thermometry, evolved gas analysis, thermomechanical analysis, emanation thermal analysis, thermal conductivity, multiple techniques, and miscellaneous thermal methods (including the combination of the thermal method with various instrumental techniques), theory and instrumentation for thermal analysis and calorimetry.