Kinetics of oil generation from brackish-lacustrine source rocks in the southern Bohai Sea, East China

Liang, Hongda; Xu, Fanghao; Grice, Kliti; Xu, Guoce; Holman, Alex I.; Hopper, Peter; Fu, Deliang; Yu, Qilin; Liang, Jiaju; Wang, Deying

doi:10.1016/j.orggeochem.2019.103945

Cited by 12 publications

(4 citation statements)

References 93 publications

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“…Differences in the microstructure of organic matter can lead to differences in functional groups and bonding energies. It is generally accepted that the decomposition of long-chain aliphatic hydrocarbons has lower activation energy than short- or medium-chain aliphatic hydrocarbons . In addition, Minerals can also have a catalytic or inhibitory effect on the pyrolysis of organic matter.…”

Section: Resultsmentioning

confidence: 99%

“…It is generally accepted that the decomposition of long-chain aliphatic hydrocarbons has lower activation energy than short- or medium-chain aliphatic hydrocarbons. 61 In addition, Minerals can also have a catalytic or inhibitory effect on the pyrolysis of organic matter. For example, Researchers discovered that silicates can promote the cracking and aromatization of aliphatic hydrocarbons to produce more short-chain aliphatic hydrocarbons and aromatic hydrocarbons, but carbonates can suppress the cracking of long-chain aliphatic hydrocarbons.…”

Section: Resultsmentioning

confidence: 99%

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Study on Pyrolysis Kinetics, Behavior, and Mechanism of Organic-Rich Tuffaceous Mudstones Based on Thermogravimetric Analysis

Li,

Zhou,

et al. 2023

ACS Omega

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Organic-rich tuffaceous mudstones are important oil and gas resources. The systematic study of the pyrolysis kinetics and characteristics can not only provide the theoretical basis for the rational development and efficient utilization of these rocks but also is an important complement to the theoretical research on the pyrolysis kinetics of organic-rich rocks. In this study, the pyrolysis kinetics, behavior, and mechanism of the organic-rich tuffaceous mudstone in the Junggar Basin were clarified by thermogravimetric analysis. The organic structure and mineral composition were identified by Rock-Eval, Fourier transform infrared (FTIR), and X-ray diffraction (XRD). The results indicated that the mudstone could be described as a type II kerogen with good hydrocarbon generation potential. The mudstone included up to 80.7% quartz, which is associated with Carboniferous volcanic activity. Four isoconversional methods were used to evaluate the activation energies. A novel and simplified method was proposed to separate the pyrolysis processes using the Coats−Redfern method based on the differences in reaction models and activation energies. The pyrolysis processes were divided into four stages, and the reaction models of each stage were preliminarily clarified. The reaction models were further modified by the accommodation function The results showed the kinetic parameters, and the reaction models of each stage were significantly different. Moreover, the obtained kinetic parameters and optimal reaction models can well characterize the pyrolysis processes and mechanism of the tuffaceous mudstone. The results of thermogravimetric-FTIR (TG-FTIR) indicated that the main pyrolysis hydrocarbon volatiles were methane, C 2+ aliphatic hydrocarbons, and aromatics. And the types and yields of pyrolysis volatiles differed at each stage.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Study on Pyrolysis Kinetics, Behavior, and Mechanism of Organic-Rich Tuffaceous Mudstones Based on Thermogravimetric Analysis

Li,

Zhou,

et al. 2023

ACS Omega

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“…Gaussian distribution is the most widely used to calculate pyrolysis kinetics parameters based on TGA, 49 and discrete distribution is widely used to calculate kinetic parameters of oil and gas generation in closed systems (such as golden tubes) or other open systems. 50,51 Miura et al 31 brought the probability density function of the Gaussian model into the distributed activation energy equation of the first-order reaction for optimization and integration and obtained the Miura method (Table 1). With the deepening of research, researchers found that the DAEM fitting effect of reaction order (n ≠ 1) is better than that of n = 1, 52 and other function models may be better than Gaussian models by TGA.…”

Section: Methodsmentioning

confidence: 99%

“…According to the form of activation energy distribution function, activation energy can be distributed according to Gaussian, Weibull, gamma, Rayleigh, and discrete distribution functions. Gaussian distribution is the most widely used to calculate pyrolysis kinetics parameters based on TGA, 49 and discrete distribution is widely used to calculate kinetic parameters of oil and gas generation in closed systems (such as golden tubes) or other open systems 50,51 . Miura et al 31 brought the probability density function of the Gaussian model into the distributed activation energy equation of the first‐order reaction for optimization and integration and obtained the Miura method (Table 1).…”

Section: Analysis Methods and Principle Of Pyrolysis Kinetics Of Soli...mentioning

confidence: 99%

A review on thermogravimetric analysis‐based analyses of the pyrolysis kinetics of oil shale and coal

Li,

Zhou

et al. 2023

Energy Science & Engineering

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Solid fossil fuels still support the development of the energy and chemical industry. The clean and efficient utilization of solid fossil fuels can effectively alleviate the problems of energy shortage and environmental pollution. An in‐depth understanding of the kinetic process, models, and mechanism of pyrolysis of solid fossil fuels is also of great significance for the exploration and utilization technologies of petroleum resources. Thermogravimetric analysis is an effective method to study the pyrolysis process and kinetics with the advantages of high sensitivity, repeatability, and reliability for data acquisition. Researchers have conducted a lot of research on the thermogravimetric kinetics of solid fossil fuels in recent years, but there is a lack of systematic summary and comparison of kinetic methods, research progress, and trends. Therefore, a comprehensive study on pyrolysis kinetic principles, methods, and models of solid fossil fuels by thermogravimetric analysis is carried out in this paper. The influencing factors of pyrolysis kinetics of solid fossil fuels using thermogravimetry are elaborated and discussed in detail. This study also provides progress in recent years and prospects of thermogravimetric kinetics of solid fossil fuels. It is expected that this paper can provide certain technical support and theoretical guidance for the research on pyrolysis kinetics based on thermogravimetric analysis, and the exploration and development, clean, and efficient utilization of solid fossil fuels.

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Paleosalinity and Its Association with Organic Matter: A Case Study from the Eocene Shahejie Formation, Laizhou Bay Sag, Bohai Bay Basin (China)

Liang

et al. 2021

J. Ocean Univ. China

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Kinetics of oil generation from brackish-lacustrine source rocks in the southern Bohai Sea, East China

Cited by 12 publications

References 93 publications

Study on Pyrolysis Kinetics, Behavior, and Mechanism of Organic-Rich Tuffaceous Mudstones Based on Thermogravimetric Analysis

Study on Pyrolysis Kinetics, Behavior, and Mechanism of Organic-Rich Tuffaceous Mudstones Based on Thermogravimetric Analysis

A review on thermogravimetric analysis‐based analyses of the pyrolysis kinetics of oil shale and coal

Paleosalinity and Its Association with Organic Matter: A Case Study from the Eocene Shahejie Formation, Laizhou Bay Sag, Bohai Bay Basin (China)

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