4. Results
4.1. Pyrolysis products
The correlation between the simulated temperature and measured vitrinite reflectance (Ro ) is shown in Fig. 2. The corresponding Roto these simulated temperatures of 335 °C, 360 °C, 400 °C, 455 °C, 480 °C, 525 °C, and 575 °C were 0.82%, 1.09%, 1.65%, 1.93%, 2.3%, 2.56%, and 3.24%, respectively. A clear linear positive correlation between them with a correlation coefficient (R 2) of 0.9861 was observed. Thus, this pyrolysis experiment could be seen as a continuous thermal evolution process with increasing maturity. Next, we used the value of the measuredRoto replace the simulated temperatures (Wu et al., 2018; Sun et al., 2019a).