Pyrolysis kinetics for Green River oil shale from the saline zone

Burnham, Alan K.; Huss, E.B.; Singleton, M.F.

doi:10.1016/0016-2361(83)90064-9

Cited by 45 publications

(31 citation statements)

References 6 publications

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“…The peak decomposition rate of dawsonite at atmospheric pressure occurs at about 665 K at 30 K/min and 625 K at 5 K/min, which is consistent with earlier results in nitrogen [10]. The decomposition generates an endotherm of about 26 J per wt% loss, as shown in Fig.…”

Section: Mineral Abundancesupporting

confidence: 90%

“…First, the dawsonite peak at 1 MPa has shifted up by 55 K at 5 K/min and 35 K at 20 K/min due to the inhibiting effects of pressure. The dawsonite peak occurs at slightly higher temperature at the higher heating rate due to kinetic effects, and the shift with heating rate at 1 MPa is comparable to earlier results in 100 kPa CO 2, which was smaller than the shift in N 2 [10]. Second, as pressure increases, the dawsonite decomposition endotherm unexpectedly shrinks and disappears.…”

Section: Effect Of Pressure On Decompositionsupporting

confidence: 82%

“…An early disagreement on whether dawsonite decomposed to NaAlO 2 or Al2O 3 was supposedly resolved [3] by Huggins and Green [18], who proposed that the decomposition occurred in two steps-first to an amorphous product and then, after eliminating more H 2 O and CO 2 , to NaAlO 2 . Probably part of the discrepancy in the literature is that the decomposition reaction is clearly influenced by CO 2 according to the results of Burnham et al [10] and by autogeneous gases under pressure according to this work.…”

Section: Discussionmentioning

confidence: 66%

“…As such, it is important to understand its thermal stability as well as its abundance in the cap rock. A previous study found that carbon dioxide inhibited the decomposition of dawsonite, and the degree of inhibition increased at slower heating rates (lower temperatures) [10]. This data suggests that in-situ conditions involving high pressures and significant CO 2 concentrations might drastically slow the decomposition of dawsonite when present.…”

Section: Introductionmentioning

confidence: 76%

“…This paper considers only the results for dawsonite decomposition, although there was clear evidence from a strong endotherm at 600°C in the dawsonite-rich samples that the soda ash acts as a flux for other carbonate-silicate reactions, as noted previously [10].…”

Section: Mineral Abundancementioning

confidence: 87%

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Analysis, occurrence, and reactions of dawsonite in AMSO well CH-1

Burnham¹,

Levchenko²,

Herron

2015

Fuel

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Section: Mineral Abundancesupporting

confidence: 90%

Section: Effect Of Pressure On Decompositionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 66%

Section: Introductionmentioning

confidence: 76%

Section: Mineral Abundancementioning

confidence: 87%

See 3 more Smart Citations

Analysis, occurrence, and reactions of dawsonite in AMSO well CH-1

Burnham¹,

Levchenko²,

Herron

2015

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Evolution of organic carbon isotopes during the pyrolysis of Nongan oil shale in Songliao Basin and its implications for in-situ conversion project

Shan

et al. 2023

Geomech. Geophys. Geo-energ. Geo-resour.

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Mastering the reaction process of underground pyrolysis is the key to oil shale in-situ conversion project. The progress of the pyrolysis reaction can be analyzed by the information of the kerogen maturity in the reaction formation. However, it is difficult to directly test the kerogen maturity by drilling and coring in in-situ conversion project. And the research on judging the process of underground pyrolysis reaction according to the maturity of oil and gas products has not been carried out in depth. This project intends to take the oil shale of the Nenjiang Formation in the southern Songliao Basin and the pyrolysis oil samples produced by the in-situ conversion project as the research object, and conduct simulation experiments and test analysis. The purpose of this paper is to identify the dynamic evolution characteristics of carbon isotope fractionation during the evolution of oil shale pyrolysis hydrocarbon products, and then establish the response relationship with the process of oil shale organic matter pyrolysis. This study has formed a set of dynamic monitoring methods for the in-situ conversion of oil shale to organic matter pyrolysis reaction process, and laid a theoretical foundation for the efficient, economical and stable operation of oil shale in-situ conversion projects.

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