TG–DSC analysis of pyrolysis process of two Chinese oil shales

Liu, Qingqing; Han, Xiangxin; Li, Q. Y.; Huang, Yi; Jiang, Xiumin

doi:10.1007/s10973-013-3524-2

Cited by 46 publications

(23 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The vast majority of up-to-date research was focused on oil shale [11,14], while relatively little research was concerned on gas shale and hydrocarbon source rocks [13].…”

Section: Introductionmentioning

confidence: 99%

Application of different thermal analysis techniques for the evaluation of petroleum source rocks

Labus

Matyasik

2018

J Therm Anal Calorim

View full text Add to dashboard Cite

In the paper, various laboratory pyrolytic methods were used to evaluate selected petroleum source rocks. The methods used are: Rock-Eval pyrolysis, Py-GC pyrolytic technique and TG/DTG/DSC. The experiments of the last method were performed according to three different procedures. Each of them provided different, specific data. The selected rock sample material was diversified in terms of stratigraphical position, structural unit and place of collection (outcrop or borehole). Based on the Rock-Eval analysis results, kerogen in samples can be classified as type II. Additional information on the quality of pyrolysis products was obtained from the Py-GC analysis. Thanks to the combination of the all three implemented pyrolytic techniques, the quality of the generation potential of the source rocks can be evaluated in details. In some samples, the oxidation and pyrolysis of organic matter occur in two stages, what is the evidence of the complex nature of the organic substance. The maximum of pyrolysis reaction is detected by TG/DTG measurement in the range of temperature from 450 to 580°C, depending on the maturity of organic matter. The maturity level increases with the rock stratigraphic position. The proportions of loss in mass observed in respective stages of pyrolysis in course of TG/DTG experiment are in correspondence with the observations of the released fractions in the Py-GC analysis. The Carpathian Menilite shales could be classified as source rocks with high oil generation potential. Also, the Lower Silurian and Ordovician shales are characterized by high oil-producing potential with a lower content of mineral matter. Cambrian rocks show a different character and gas-prone generation potential.

show abstract

“…The vast majority of up-to-date research was focused on oil shale [11,14], while relatively little research was concerned on gas shale and hydrocarbon source rocks [13].…”

Section: Introductionmentioning

confidence: 99%

Application of different thermal analysis techniques for the evaluation of petroleum source rocks

Labus

Matyasik

2018

J Therm Anal Calorim

View full text Add to dashboard Cite

show abstract

“…The slow pyrolysis process of oil shale heated to 850°C can be divided into three obvious stages: pre-pyrolysis, low-temperature pyrolysis and high-temperature pyrolysis [16]. In the pre-pyrolysis, the ambient heat is first transferred to the particle surface by both radiation and convection and then to the inner of the particle mainly by heat conduction, increasing particle temperature and evaporating the moisture and the interlayer water from the clay minerals.…”

Section: Analysis Of the Heat Transfer During The Retortingmentioning

confidence: 99%

“…The heat capacity and internal heat sink of Gonglangtou oil shale might be expressed as the temperature functions according to the literature data [16]. The thermal conductivity k is assumed constant since it is very low and varies little with temperature.…”

Section: Mathematical Formulationmentioning

confidence: 99%

“…The most important reason is that the temperature difference between center and surface becomes smaller, making less heat transmitted by heat conduction. And the endothermic effects of the decomposition after 600 K play another important role [16]. The central temperature of Gonglangtou oil shale increases slower than that of Green River oil shale, attributed to two reasons.…”

Section: Model Validation and Comparisonsmentioning

confidence: 99%

“…The central temperature of Gonglangtou oil shale increases slower than that of Green River oil shale, attributed to two reasons. Firstly, Gonglangtou oil shale has higher specific heat capacity than Green River oil shale [3,16]. So, up heating, Gonglangtou oil shale particle will have to consume more heat to heat solid parts than Green River particle, causing slower temperature rise of shale particle.…”

Section: Model Validation and Comparisonsmentioning

confidence: 99%

See 2 more Smart Citations

Heat transfer characteristic of oil shale particle during the retorting

Han

Liu

Jiang

2015

International Journal of Heat and Mass Transfer

View full text Add to dashboard Cite

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

Li,

Zhou

et al. 2023

Energy Science & Engineering

View full text Add to dashboard Cite

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.

show abstract

TG–DSC analysis of pyrolysis process of two Chinese oil shales

Cited by 46 publications

References 32 publications

Application of different thermal analysis techniques for the evaluation of petroleum source rocks

Application of different thermal analysis techniques for the evaluation of petroleum source rocks

Heat transfer characteristic of oil shale particle during the retorting

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

Contact Info

Product

Resources

About