Carbon isotopic fractionation in the process of Fischer-Tropsch reaction in primitive solar nebula |
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| Authors: | Guixing Hu Ziyuan Ouyang Xianbin Wang Qibin Wen |
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| Institution: | (1) State Key Laboratory of Gas Geochemistry, Lanzhou Institute of Geology, Chinese Academy of Sciences, 730000 Lanzhou, China;(2) Institute of Geochemistry, Chinese Academy of Sciences, 550002 Guiyang, China |
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| Abstract: | Carbon isotopic fractionation of low-weight molecules of the products of Fischer-Tropsch reaction under the conditions of
Earth's accumulation region in primitive solar nebula has been experimentally studied. Among the reaction products, carbon
dioxide has the heaviest isotopic composition; carbon isotopic composition of methane has a large variation; different from
biogenic natural gases, carbon isotopic compositions among ethane, propane and butane yield a reverse distribution pattern.
It suggests that primordial hydrocarbons that were captured in the interior of the Earth during its accretion possess a reverse
carbon isotopic distribution pattern.
Project supported by the National Natural Science Foundation of China (Grant No. 49233060). |
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| Keywords: | Fischer-Tropsch reaction carbon isotopes reverse distribution pattern |
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