Hydroconversion for Hydrocarbon Generation of Highly Overmature Kerogens under Fischer−Tropsch Synthesis Conditions
发布时间：2024-01-08
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名 称
Hydroconversion for Hydrocarbon Generation of Highly Overmature Kerogens under Fischer−Tropsch Synthesis Conditions
科技资源标识
CSTR:11738.14.NCDC.XDA14.PP4389.2024
DOI
10.1021/acs.energyfuels.1c00284
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摘 要
In order to explore the possibility of continuous hydrocarbon generation from highly mature organic matter, a series of simulation experiments of hydroconversion of highly over mature Yuertusi kerogen were conducted under Fischer−Tropsch synthesis conditions, that is, with native iron plus water for hydrogen supply. Under temperatures of 400−600 °C and a pressure of 50 MPa, very high yields of gaseous and liquid hydrocarbons were generated above 500 °C in the series of kerogen iron plus water, compared with three control experimental series of kerogen alone, kerogen plus water, and kerogen plus iron, in which the total hydrocarbon yields were ∼30 times higher than that of kerogen alone. The main mechanism is that large amount of hydrogen produced by the reaction of iron with water at high temperatures, which promotes the pyrolysis and depolymerization of kerogen macromolecules and CO2 Fischer−Tropsch-type (FTT) synthesis, consequently producing liquid and gaseous hydrocarbons in high yields. The results were confirmed by performing another experiment of highly over mature kerogen with low sulfur of Permian Dalong Formation in the Sichuan Basin. The consistent results between the two kerogens indicated the feasibility of the hydroconversion on highly over mature kerogens. The hydroconversion method employed in this study is expected not only to largely increase the hydrocarbon production of kerogen, oil shale, coal, asphaltene, and other macromolecular organic matter upstream, but also has great significance to the refining and processing of heavy oils and fossil-fuel tailings downstream.
Li Kang. Hydroconversion for Hydrocarbon Generation of Highly Overmature Kerogens under Fischer−Tropsch Synthesis Conditions. 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://cstr.cn/CSTR:11738.14.NCDC.XDA14.PP4389.2024.
Li Kang. Hydroconversion for Hydrocarbon Generation of Highly Overmature Kerogens under Fischer−Tropsch Synthesis Conditions. 国家冰川冻土沙漠科学数据中心(http://www.ncdc.ac.cn), 2024. https://www.doi.org/10.1021/acs.energyfuels.1c00284.
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CSTR:11738.14.NCDC.XDA14.PP4389.2024
10.1021/acs.energyfuels.1c00284