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kerogen
(redirected from Kerogens)

   Also found in: Encyclopedia, Wikipedia 0.01 sec.
ker·o·gen  (kr-jn)
n.
A fossilized material in shale and other sedimentary rock that yields oil upon heating.

[Greek kros, wax + -gen.]

kerogen [ˈkɛrədʒən]
n
(Earth Sciences / Minerals) the solid organic material found in some rocks, such as oil shales, that produces hydrocarbons similar to petroleum when heated
[from Greek kēro(s) wax + -gen]

kerogen  (kr-jn)
A fossilized mixture of insoluble organic material that, when heated, breaks down into petroleum and natural gas. Kerogen consists of carbon, hydrogen, oxygen, nitrogen, and sulfur and forms from compacted organic material, including algae, pollen, spores and spore coats, and insects. It is usually found in sedimentary rocks, such as shale.


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Oil shales contain types I and II kerogens which upon complete conversion may lose between 70 wt % (type I kerogen) and 50 wt % (type II kerogen) [22].
Sulfur is also believed to be a critical variable in the time-temperature requirements for oil generation, so kerogens rich in organic sulfur are thought to generate petroleum at a lower level of thermal stress than sulfur-lean kerogens [4].
 
 
 
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