| 11. | Kerogen Type III is formed from terrestrial plant matter that is lacking in lipids or waxy matter.
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| 12. | The characteristics of the basement sediments can produce conditions conducive to the conversion of kerogen into petroleum.
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| 13. | Pyrobitumen represents a significant fraction of the ultimate fate of petroleum liquids formed from kerogen during catagenesis.
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| 14. | In 1912, he introduced the name of kerogen to cover the insoluble organic matter in oil shale.
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| 15. | This process converts kerogen in oil shale into shale oil by pyrolysis, hydrogenation, or thermal dissolution.
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| 16. | The kerogen in the rock can be converted into crude oil using heat and pressure to simulate natural processes.
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| 17. | These processes convert the organic matter within the rock ( kerogen ) into impurities such as sulfur and nitrogen.
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| 18. | Many of the coal fields date to the Carboniferous period of type III kerogen, a source of natural gas.
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| 19. | The formation of polymers in this way accounts for the large molecular weights and diverse chemical compositions associated with kerogen.
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| 20. | In summary, D content of kerogen and coals are complicated and hard to resolve due to the complex chemistry.
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