3] ratio) is used in determining the kerogen
type , generated hydrocarbon type (oil or gas) and thermal maturity level [29, 30].
According to the mentioned diagrams, OM of the majority of the samples comprises type I and II kerogens
X] in the study, the conversion history of five typical nitrogen-containing groups present in oil shale kerogen
is summarized and illustrated.
Some studies [10, 22-24] investigated the curve-resolved method of XPS N 1s spectra and reported the forms of organic nitrogen in coals and oil shale kerogens
as its main organic component, oil shale is a three-dimensional (3D) organic polymer of complex chemical structure composed of C, H and O, and minor elements like N and S .
max] values in the range of 377-586 [degrees]C, which mainly reflect the trend of thermal maturity, but may also be influenced by kerogen
According to Kesgin , TOC, S2, hydrogen index (HI), kerogen
Comparison of the bulk geochemical features and thermal reactivity of kerogens
from Mol (Boom Clay), Bure (Callovo-Oxfordian argillite) and Tournemire (Toarcian shales) underground research laboratories.
contained in the raw oil shale samples studied were of Type I.
Then a reaction between oil shale and oxygen, known as the partial oxidation of kerogen
, followed .
It is well known that type II is characteristic of kerogens
from autochthonic organic matter, originating from the mixture of phytoplankton, zooplankton and microorganisms (bacteria) in reduction media.
It was revealed that product distribution was dependent on pyrolysis temperature for all the kerogens
examined as well as for the oil shales.