Stepwise pyrolysis-gas chromatography of kerogen in sedimentary rocks

摘要: Abstract Stepwise pyrolysis-gas chromatography is used to examine and characterize the carbonaceous matter in sedimentary rocks. Low-temperature steps remove material normally volatile or extracted by benzene-methanol. Successively-higher temperature degrade insoluble (kerogen) into smaller molecular pieces. The sequential pyrolysis have advantage of breaking kerogen at several temperatures which may be related bond type strength. product chromatograms from each step can compared. sizes (chain length) kerogens fragments determined. results presented here show molecules range C 11 23 because: (1) they compared normal petroleum source rock extractables; (2) these large give a feeling for construction kerogen. Green River Antrim shales low-temperature indigenous not modified pyrolyzed C . Kupferletten shows narrow weight 15 19 probably derived Monterey shale appears unrelated as represented its products. Pierre over Kerogen Romney has no than 8 products potential due thermal tectonic diagenesis.