A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Generation of Hydrocarbon Gases in Stepwise Pyrolysis of Artificially Matured Domanik Oil Shale Kerogen
https://orcid.org/https://orcid.org/0000-0003-0597-3170
https://orcid.org/https://orcid.org/0000-0002-3860-944X
https://orcid.org/https://orcid.org/0000-0003-1379-9686
A series of kerogen samples were isolated from Domanik oil shale before and after hydrothermal treatment in an autoclave (at 250–375°C, for 24 h). Than composition of the C1–C5 hydrocarbon gases generated in stepwise (300–800°C) pyrolysis of these kerogens was characterized by gas chromatography. According to the calculated EASY %Ro and Rock-Eval pyrolysis data, the highest maturity level of the organic matter reached by the hydrothermal treatment corresponded to the MC4 stage. As the hydrothermal treatment temperature of the oil shale was elevated up to 325°C, the dry pyrolysis of residual kerogen led to the predominant generation of wet gases in which C2+ prevailed over methane; at temperatures above 325°C, methane was predominant. Based on the pattern of the generation curves plotted individually for C1, C2, C3, C2–C5, and C4–C5 gases, methane was found to have additional sources in the kerogen structure, compared to C2+ gases. Ethane and ethylene are generated simultaneously via the free-radical decomposition of alkyl structures; moreover, at high pyrolysis temperatures, ethane and ethylene have some precursors other than those of C3+ gases.
Generation of Hydrocarbon Gases in Stepwise Pyrolysis of Artificially Matured Domanik Oil Shale Kerogen
https://orcid.org/https://orcid.org/0000-0003-0597-3170
https://orcid.org/https://orcid.org/0000-0002-3860-944X
https://orcid.org/https://orcid.org/0000-0003-1379-9686
A series of kerogen samples were isolated from Domanik oil shale before and after hydrothermal treatment in an autoclave (at 250–375°C, for 24 h). Than composition of the C1–C5 hydrocarbon gases generated in stepwise (300–800°C) pyrolysis of these kerogens was characterized by gas chromatography. According to the calculated EASY %Ro and Rock-Eval pyrolysis data, the highest maturity level of the organic matter reached by the hydrothermal treatment corresponded to the MC4 stage. As the hydrothermal treatment temperature of the oil shale was elevated up to 325°C, the dry pyrolysis of residual kerogen led to the predominant generation of wet gases in which C2+ prevailed over methane; at temperatures above 325°C, methane was predominant. Based on the pattern of the generation curves plotted individually for C1, C2, C3, C2–C5, and C4–C5 gases, methane was found to have additional sources in the kerogen structure, compared to C2+ gases. Ethane and ethylene are generated simultaneously via the free-radical decomposition of alkyl structures; moreover, at high pyrolysis temperatures, ethane and ethylene have some precursors other than those of C3+ gases.
Generation of Hydrocarbon Gases in Stepwise Pyrolysis of Artificially Matured Domanik Oil Shale Kerogen
https://orcid.org/https://orcid.org/0000-0003-0597-3170
https://orcid.org/https://orcid.org/0000-0002-3860-944X
https://orcid.org/https://orcid.org/0000-0003-1379-9686
A series of kerogen samples were isolated from Domanik oil shale before and after hydrothermal treatment in an autoclave (at 250–375°C, for 24 h). Than composition of the C1–C5 hydrocarbon gases generated in stepwise (300–800°C) pyrolysis of these kerogens was characterized by gas chromatography. According to the calculated EASY %Ro and Rock-Eval pyrolysis data, the highest maturity level of the organic matter reached by the hydrothermal treatment corresponded to the MC4 stage. As the hydrothermal treatment temperature of the oil shale was elevated up to 325°C, the dry pyrolysis of residual kerogen led to the predominant generation of wet gases in which C2+ prevailed over methane; at temperatures above 325°C, methane was predominant. Based on the pattern of the generation curves plotted individually for C1, C2, C3, C2–C5, and C4–C5 gases, methane was found to have additional sources in the kerogen structure, compared to C2+ gases. Ethane and ethylene are generated simultaneously via the free-radical decomposition of alkyl structures; moreover, at high pyrolysis temperatures, ethane and ethylene have some precursors other than those of C3+ gases.
Generation of Hydrocarbon Gases in Stepwise Pyrolysis of Artificially Matured Domanik Oil Shale Kerogen
Pet. Chem.
Burdelnaya, N. S. (author) / Bushnev, D. A. (author) / Ilchenko, A. A. (author)
Petroleum Chemistry ; 64 ; 688-696
2024-06-01
9 pages
Article (Journal)
Electronic Resource
English
Modeling of oil generation by Domanik carbonaceous shale
| Springer Verlag | 2013
Maternal transfer of dioxin-like compounds in artificially matured European eels
| Online Contents | 2017
The granular and polymer composite nature of kerogen-rich shale
| Springer Verlag | 2016
The granular and polymer composite nature of kerogen-rich shale
| Online Contents | 2016