Pyrolysis characteristics of Maoming oil shale using visual reactor in the presence of supercritical water
Tian Xie,
Hai Huang,
Yi Zhang,
Zhiguo Wang,
Shuai Li,
Zilong Zeng,
Hui Jin,
Yechun Wang,
Qiuyang Zhao
Affiliations
Tian Xie
Xi’an Shiyou University, Xi’an 710065, China
Hai Huang
Xi’an Shiyou University, Xi’an 710065, China
Yi Zhang
Xi’an Shiyou University, Xi’an 710065, China
Zhiguo Wang
Xi’an Shiyou University, Xi’an 710065, China; Engineering Research Center of Smart Energy and Carbon Neutral in Oil
Shuai Li
Xi’an Shiyou University, Xi’an 710065, China
Zilong Zeng
Xi’an Shiyou University, Xi’an 710065, China
Hui Jin
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Yechun Wang
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China; Xinjin Weihua Institute of Clean Energy Research, Foshan City, 528216, China
Qiuyang Zhao
State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
This study introduces a novel visual online observation technique for identifying the critical temperature for oil generation. It also examines the hydrocarbon generation properties of Maoming oil shale when subjected to supercritical water. Findings indicate that the critical temperature for Maoming oil shale in supercritical water ranges from 262 to 292 °C, and the visualization reactor facilitates the investigation of this critical temperature. The organic carbon conversion rate for Maoming oil shale can exceed 25.4% within a limited reaction time of one hour. Increasing the water-shale mass ratio enhances the overall conversion of organic carbon in the oil shale and boosts oil production, although it does not significantly improve gas production. Additionally, a higher water-shale mass ratio can decrease the heavy oil fraction in the oil and enhance the selectivity for hydrogen and methane in the gas produced.
